diff --git a/.travis.yml b/.travis.yml
index 683422dc97..5e86714a89 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,7 @@ before_install:
- echo "MAVEN_OPTS='-Xmx2048M -Xss128M -XX:+CMSClassUnloadingEnabled -XX:+UseG1GC -XX:-UseGCOverheadLimit'" > ~/.mavenrc
install: skip
-script: travis_wait 60 mvn -q install -Pdefault-first,default-second
+script: travis_wait 60 mvn -q install -Pdefault-first,default-second -Dgib.enabled=true
sudo: required
diff --git a/algorithms-genetic/pom.xml b/algorithms-genetic/pom.xml
index 2a10a81980..fc6d36dac1 100644
--- a/algorithms-genetic/pom.xml
+++ b/algorithms-genetic/pom.xml
@@ -1,10 +1,10 @@
4.0.0
- com.baeldung
algorithms-genetic
0.0.1-SNAPSHOT
-
+ algorithms-genetic
+
com.baeldung
parent-modules
@@ -61,4 +61,5 @@
1.11
-
\ No newline at end of file
+
+
diff --git a/algorithms-miscellaneous-1/pom.xml b/algorithms-miscellaneous-1/pom.xml
index 16749d452e..5006670dd9 100644
--- a/algorithms-miscellaneous-1/pom.xml
+++ b/algorithms-miscellaneous-1/pom.xml
@@ -1,10 +1,10 @@
4.0.0
- com.baeldung
algorithms-miscellaneous-1
0.0.1-SNAPSHOT
-
+ algorithms-miscellaneous-1
+
com.baeldung
parent-modules
@@ -17,6 +17,11 @@
commons-math3
${commons-math3.version}
+
+ com.google.guava
+ guava
+ ${guava.version}
+
commons-codec
commons-codec
@@ -73,6 +78,7 @@
3.6.1
3.9.0
1.11
+ 25.1-jre
\ No newline at end of file
diff --git a/algorithms-miscellaneous-1/src/main/java/com/baeldung/algorithms/factorial/Factorial.java b/algorithms-miscellaneous-1/src/main/java/com/baeldung/algorithms/factorial/Factorial.java
new file mode 100644
index 0000000000..43d2221773
--- /dev/null
+++ b/algorithms-miscellaneous-1/src/main/java/com/baeldung/algorithms/factorial/Factorial.java
@@ -0,0 +1,63 @@
+package com.baeldung.algorithms.factorial;
+
+import java.math.BigInteger;
+import java.util.stream.LongStream;
+
+import org.apache.commons.math3.util.CombinatoricsUtils;
+
+import com.google.common.math.BigIntegerMath;
+
+public class Factorial {
+
+ public long factorialUsingForLoop(int n) {
+ long fact = 1;
+ for (int i = 2; i <= n; i++) {
+ fact = fact * i;
+ }
+ return fact;
+ }
+
+ public long factorialUsingStreams(int n) {
+ return LongStream.rangeClosed(1, n)
+ .reduce(1, (long x, long y) -> x * y);
+ }
+
+ public long factorialUsingRecursion(int n) {
+ if (n <= 2) {
+ return n;
+ }
+ return n * factorialUsingRecursion(n - 1);
+ }
+
+ private Long[] factorials = new Long[20];
+
+ public long factorialUsingMemoize(int n) {
+
+ if (factorials[n] != null) {
+ return factorials[n];
+ }
+
+ if (n <= 2) {
+ return n;
+ }
+ long nthValue = n * factorialUsingMemoize(n - 1);
+ factorials[n] = nthValue;
+ return nthValue;
+ }
+
+ public BigInteger factorialHavingLargeResult(int n) {
+ BigInteger result = BigInteger.ONE;
+ for (int i = 2; i <= n; i++)
+ result = result.multiply(BigInteger.valueOf(i));
+ return result;
+ }
+
+ public long factorialUsingApacheCommons(int n) {
+ return CombinatoricsUtils.factorial(n);
+ }
+
+ public BigInteger factorialUsingGuava(int n) {
+ return BigIntegerMath.factorial(n);
+ }
+
+}
diff --git a/algorithms-miscellaneous-1/src/test/java/com/baeldung/algorithms/factorial/FactorialUnitTest.java b/algorithms-miscellaneous-1/src/test/java/com/baeldung/algorithms/factorial/FactorialUnitTest.java
new file mode 100644
index 0000000000..c185dba62b
--- /dev/null
+++ b/algorithms-miscellaneous-1/src/test/java/com/baeldung/algorithms/factorial/FactorialUnitTest.java
@@ -0,0 +1,72 @@
+package com.baeldung.algorithms.factorial;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.math.BigInteger;
+
+import org.junit.Before;
+import org.junit.Test;
+
+public class FactorialUnitTest {
+
+ Factorial factorial;
+
+ @Before
+ public void setup() {
+ factorial = new Factorial();
+ }
+
+ @Test
+ public void whenCalculatingFactorialUsingForLoop_thenCorrect() {
+ int n = 5;
+
+ assertThat(factorial.factorialUsingForLoop(n)).isEqualTo(120);
+ }
+
+ @Test
+ public void whenCalculatingFactorialUsingStreams_thenCorrect() {
+ int n = 5;
+
+ assertThat(factorial.factorialUsingStreams(n)).isEqualTo(120);
+ }
+
+ @Test
+ public void whenCalculatingFactorialUsingRecursion_thenCorrect() {
+ int n = 5;
+
+ assertThat(factorial.factorialUsingRecursion(n)).isEqualTo(120);
+ }
+
+ @Test
+ public void whenCalculatingFactorialUsingMemoize_thenCorrect() {
+ int n = 5;
+
+ assertThat(factorial.factorialUsingMemoize(n)).isEqualTo(120);
+
+ n = 6;
+
+ assertThat(factorial.factorialUsingMemoize(n)).isEqualTo(720);
+ }
+
+ @Test
+ public void whenCalculatingFactorialHavingLargeResult_thenCorrect() {
+ int n = 22;
+
+ assertThat(factorial.factorialHavingLargeResult(n)).isEqualTo(new BigInteger("1124000727777607680000"));
+ }
+
+ @Test
+ public void whenCalculatingFactorialUsingApacheCommons_thenCorrect() {
+ int n = 5;
+
+ assertThat(factorial.factorialUsingApacheCommons(n)).isEqualTo(120);
+ }
+
+ @Test
+ public void whenCalculatingFactorialUsingGuava_thenCorrect() {
+ int n = 22;
+
+ assertThat(factorial.factorialUsingGuava(n)).isEqualTo(new BigInteger("1124000727777607680000"));
+ }
+
+}
diff --git a/algorithms-miscellaneous-2/README.md b/algorithms-miscellaneous-2/README.md
index 6772a94a8d..d693a44f66 100644
--- a/algorithms-miscellaneous-2/README.md
+++ b/algorithms-miscellaneous-2/README.md
@@ -17,3 +17,4 @@
- [Round Up to the Nearest Hundred](https://www.baeldung.com/java-round-up-nearest-hundred)
- [Calculate Percentage in Java](https://www.baeldung.com/java-calculate-percentage)
- [Converting Between Byte Arrays and Hexadecimal Strings in Java](https://www.baeldung.com/java-byte-arrays-hex-strings)
+- [Convert Latitude and Longitude to a 2D Point in Java](https://www.baeldung.com/java-convert-latitude-longitude)
diff --git a/algorithms-miscellaneous-2/pom.xml b/algorithms-miscellaneous-2/pom.xml
index eeae544612..25472d4888 100644
--- a/algorithms-miscellaneous-2/pom.xml
+++ b/algorithms-miscellaneous-2/pom.xml
@@ -1,9 +1,9 @@
4.0.0
- com.baeldung
algorithms-miscellaneous-2
0.0.1-SNAPSHOT
+ algorithms-miscellaneous-2
com.baeldung
diff --git a/algorithms-sorting/pom.xml b/algorithms-sorting/pom.xml
index 60ae37f2a4..2aee6e9199 100644
--- a/algorithms-sorting/pom.xml
+++ b/algorithms-sorting/pom.xml
@@ -1,9 +1,9 @@
4.0.0
- com.baeldung
algorithms-sorting
0.0.1-SNAPSHOT
+ algorithms-sorting
com.baeldung
diff --git a/annotations/annotation-processing/pom.xml b/annotations/annotation-processing/pom.xml
index 8e53334521..d9aca6040d 100644
--- a/annotations/annotation-processing/pom.xml
+++ b/annotations/annotation-processing/pom.xml
@@ -3,7 +3,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
annotation-processing
-
+ annotation-processing
+
com.baeldung
1.0.0-SNAPSHOT
diff --git a/annotations/annotation-user/pom.xml b/annotations/annotation-user/pom.xml
index 07ea9a5b5a..422cc7f119 100644
--- a/annotations/annotation-user/pom.xml
+++ b/annotations/annotation-user/pom.xml
@@ -3,6 +3,7 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
annotation-user
+ annotation-user
annotations
diff --git a/annotations/pom.xml b/annotations/pom.xml
index 2c73d3d91b..6d83f5b057 100644
--- a/annotations/pom.xml
+++ b/annotations/pom.xml
@@ -4,7 +4,8 @@
4.0.0
annotations
pom
-
+ annotations
+
parent-modules
com.baeldung
diff --git a/apache-avro/pom.xml b/apache-avro/pom.xml
index ddf5844271..18f9c34d64 100644
--- a/apache-avro/pom.xml
+++ b/apache-avro/pom.xml
@@ -3,10 +3,9 @@
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
- com.baeldung
apache-avro
0.0.1-SNAPSHOT
- Apache Avro
+ apache-avro
UTF-8
diff --git a/apache-bval/pom.xml b/apache-bval/pom.xml
index 5ddb1ecb59..786f587fb1 100644
--- a/apache-bval/pom.xml
+++ b/apache-bval/pom.xml
@@ -4,7 +4,8 @@
apache-bval
apache-bval
0.0.1-SNAPSHOT
-
+ apache-bval
+
com.baeldung
parent-modules
diff --git a/apache-curator/pom.xml b/apache-curator/pom.xml
index ac10811e7a..bcca38b199 100644
--- a/apache-curator/pom.xml
+++ b/apache-curator/pom.xml
@@ -4,6 +4,7 @@
apache-curator
0.0.1-SNAPSHOT
jar
+ apache-curator
com.baeldung
diff --git a/apache-cxf/cxf-aegis/pom.xml b/apache-cxf/cxf-aegis/pom.xml
index b7e9e426a2..1d36178b82 100644
--- a/apache-cxf/cxf-aegis/pom.xml
+++ b/apache-cxf/cxf-aegis/pom.xml
@@ -2,7 +2,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
4.0.0
cxf-aegis
-
+ cxf-aegis
+
com.baeldung
apache-cxf
diff --git a/apache-cxf/cxf-introduction/pom.xml b/apache-cxf/cxf-introduction/pom.xml
index a9e82c16b3..17f03afd25 100644
--- a/apache-cxf/cxf-introduction/pom.xml
+++ b/apache-cxf/cxf-introduction/pom.xml
@@ -4,7 +4,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
4.0.0
cxf-introduction
-
+ cxf-introduction
+
com.baeldung
apache-cxf
diff --git a/apache-cxf/cxf-jaxrs-implementation/pom.xml b/apache-cxf/cxf-jaxrs-implementation/pom.xml
index 89acbdf1bd..03d0f67c90 100644
--- a/apache-cxf/cxf-jaxrs-implementation/pom.xml
+++ b/apache-cxf/cxf-jaxrs-implementation/pom.xml
@@ -4,7 +4,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
4.0.0
cxf-jaxrs-implementation
-
+ cxf-jaxrs-implementation
+
com.baeldung
apache-cxf
diff --git a/apache-cxf/cxf-spring/pom.xml b/apache-cxf/cxf-spring/pom.xml
index 31e75e7cdd..97715af54c 100644
--- a/apache-cxf/cxf-spring/pom.xml
+++ b/apache-cxf/cxf-spring/pom.xml
@@ -3,6 +3,7 @@
4.0.0
cxf-spring
war
+ cxf-spring
com.baeldung
diff --git a/apache-cxf/pom.xml b/apache-cxf/pom.xml
index 8918fd4450..0016f33d70 100644
--- a/apache-cxf/pom.xml
+++ b/apache-cxf/pom.xml
@@ -1,9 +1,9 @@
4.0.0
- com.baeldung
apache-cxf
0.0.1-SNAPSHOT
+ apache-cxf
pom
diff --git a/apache-cxf/sse-jaxrs/pom.xml b/apache-cxf/sse-jaxrs/pom.xml
index d4b6c19d03..cb5c96660a 100644
--- a/apache-cxf/sse-jaxrs/pom.xml
+++ b/apache-cxf/sse-jaxrs/pom.xml
@@ -3,8 +3,8 @@
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
-
sse-jaxrs
+ sse-jaxrs
pom
diff --git a/apache-cxf/sse-jaxrs/sse-jaxrs-client/pom.xml b/apache-cxf/sse-jaxrs/sse-jaxrs-client/pom.xml
index 0f5406fbc7..c7acf22c32 100644
--- a/apache-cxf/sse-jaxrs/sse-jaxrs-client/pom.xml
+++ b/apache-cxf/sse-jaxrs/sse-jaxrs-client/pom.xml
@@ -3,15 +3,15 @@
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
-
+ sse-jaxrs-client
+ sse-jaxrs-client
+
com.baeldung
sse-jaxrs
0.0.1-SNAPSHOT
- sse-jaxrs-client
-
3.2.0
@@ -21,7 +21,6 @@
org.codehaus.mojo
exec-maven-plugin
- 1.6.0
singleEvent
diff --git a/apache-cxf/sse-jaxrs/sse-jaxrs-server/pom.xml b/apache-cxf/sse-jaxrs/sse-jaxrs-server/pom.xml
index 2e82dc3829..eeb5726ee1 100644
--- a/apache-cxf/sse-jaxrs/sse-jaxrs-server/pom.xml
+++ b/apache-cxf/sse-jaxrs/sse-jaxrs-server/pom.xml
@@ -3,16 +3,16 @@
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
-
+ sse-jaxrs-server
+ sse-jaxrs-server
+ war
+
com.baeldung
sse-jaxrs
0.0.1-SNAPSHOT
- sse-jaxrs-server
- war
-
2.4.2
false
diff --git a/apache-geode/pom.xml b/apache-geode/pom.xml
index a3f6604ac4..738accdcb8 100644
--- a/apache-geode/pom.xml
+++ b/apache-geode/pom.xml
@@ -3,11 +3,10 @@
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
-
- com.baeldung
apache-geode
1.0-SNAPSHOT
-
+ apache-geode
+
com.baeldung
parent-modules
diff --git a/apache-opennlp/pom.xml b/apache-opennlp/pom.xml
index 985c9a2df2..6b2e6a9729 100644
--- a/apache-opennlp/pom.xml
+++ b/apache-opennlp/pom.xml
@@ -4,6 +4,7 @@
4.0.0
apache-opennlp
1.0-SNAPSHOT
+ apache-opennlp
jar
diff --git a/apache-poi/pom.xml b/apache-poi/pom.xml
index a1ec626d43..54c3e8e928 100644
--- a/apache-poi/pom.xml
+++ b/apache-poi/pom.xml
@@ -1,9 +1,9 @@
4.0.0
- com.baeldung
apache-poi
0.0.1-SNAPSHOT
+ apache-poi
com.baeldung
diff --git a/apache-pulsar/pom.xml b/apache-pulsar/pom.xml
index da004a7638..a4c09586eb 100644
--- a/apache-pulsar/pom.xml
+++ b/apache-pulsar/pom.xml
@@ -1,21 +1,22 @@
- 4.0.0
- com.baeldung.pulsar
- pulsar-java
- 0.0.1
+ 4.0.0
+ com.baeldung.pulsar
+ apache-pulsar
+ 0.0.1
+ apache-pulsar
-
-
- org.apache.pulsar
- pulsar-client
- 2.1.1-incubating
- compile
-
-
-
- 1.8
- 1.8
-
+
+
+ org.apache.pulsar
+ pulsar-client
+ 2.1.1-incubating
+ compile
+
+
+
+ 1.8
+ 1.8
+
diff --git a/apache-shiro/pom.xml b/apache-shiro/pom.xml
index 98d9563284..644d70b30a 100644
--- a/apache-shiro/pom.xml
+++ b/apache-shiro/pom.xml
@@ -5,7 +5,8 @@
4.0.0
apache-shiro
1.0-SNAPSHOT
-
+ apache-shiro
+
parent-boot-1
com.baeldung
diff --git a/apache-thrift/pom.xml b/apache-thrift/pom.xml
index b22364cb19..ab54fc2cef 100644
--- a/apache-thrift/pom.xml
+++ b/apache-thrift/pom.xml
@@ -1,9 +1,9 @@
4.0.0
- com.baeldung
apache-thrift
0.0.1-SNAPSHOT
+ apache-thrift
pom
diff --git a/apache-tika/pom.xml b/apache-tika/pom.xml
index 5a76fdeeda..0399914a5f 100644
--- a/apache-tika/pom.xml
+++ b/apache-tika/pom.xml
@@ -1,10 +1,10 @@
4.0.0
- com.baeldung
apache-tika
0.0.1-SNAPSHOT
-
+ apache-tika
+
com.baeldung
parent-modules
diff --git a/apache-zookeeper/pom.xml b/apache-zookeeper/pom.xml
index 0b29186ccc..53e4217358 100644
--- a/apache-zookeeper/pom.xml
+++ b/apache-zookeeper/pom.xml
@@ -1,9 +1,9 @@
4.0.0
- com.baeldung
apache-zookeeper
0.0.1-SNAPSHOT
+ apache-zookeeper
jar
diff --git a/asm/pom.xml b/asm/pom.xml
index 5aad2a0e37..e56438c808 100644
--- a/asm/pom.xml
+++ b/asm/pom.xml
@@ -5,6 +5,7 @@
com.baeldung.examples
asm
1.0
+ asm
jar
diff --git a/atomix/pom.xml b/atomix/pom.xml
index f85d2d7484..e50c1d867f 100644
--- a/atomix/pom.xml
+++ b/atomix/pom.xml
@@ -4,7 +4,8 @@
com.atomix.io
atomix
0.0.1-SNAPSHOT
-
+ atomix
+
com.baeldung
parent-modules
diff --git a/axon/pom.xml b/axon/pom.xml
index 915a04feb5..c643ea9e57 100644
--- a/axon/pom.xml
+++ b/axon/pom.xml
@@ -3,7 +3,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
axon
-
+ axon
+
parent-modules
com.baeldung
diff --git a/cas/cas-server/pom.xml b/cas/cas-server/pom.xml
index 9b61aaec3d..98f5f10493 100644
--- a/cas/cas-server/pom.xml
+++ b/cas/cas-server/pom.xml
@@ -3,8 +3,9 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd ">
4.0.0
cas-server
- war
1.0
+ cas-server
+ war
parent-boot-1
diff --git a/cdi/README.md b/cdi/README.md
index 0477ce85bd..bfb635be9e 100644
--- a/cdi/README.md
+++ b/cdi/README.md
@@ -1,3 +1,5 @@
### Relevant Articles:
- [CDI Interceptor vs Spring AspectJ](http://www.baeldung.com/cdi-interceptor-vs-spring-aspectj)
- [An Introduction to CDI (Contexts and Dependency Injection) in Java](http://www.baeldung.com/java-ee-cdi)
+- [Introduction to the Event Notification Model in CDI 2.0](https://www.baeldung.com/cdi-event-notification)
+
diff --git a/cdi/pom.xml b/cdi/pom.xml
index 2c719c1d7f..0cf5062ccc 100644
--- a/cdi/pom.xml
+++ b/cdi/pom.xml
@@ -2,10 +2,10 @@
4.0.0
- com.baeldung
cdi
1.0-SNAPSHOT
-
+ cdi
+
com.baeldung
parent-spring-4
@@ -14,6 +14,16 @@
+
+ javax.enterprise
+ cdi-api
+ ${cdi-api.version}
+
+
+ org.jboss.weld.se
+ weld-se-core
+ ${weld-se-core.version}
+
org.hamcrest
hamcrest-core
@@ -42,11 +52,6 @@
aspectjweaver
${aspectjweaver.version}
-
- org.jboss.weld.se
- weld-se-core
- ${weld-se-core.version}
-
org.springframework
spring-test
@@ -54,13 +59,13 @@
test
-
- 1.8.9
- 2.4.1.Final
+ 2.0.SP1
+ 3.0.5.Final
+ 1.9.2
1.3
3.10.0
4.12
+ 5.1.2.RELEASE
-
diff --git a/cdi/src/main/java/com/baeldung/cdi2observers/application/BootstrappingApplication.java b/cdi/src/main/java/com/baeldung/cdi2observers/application/BootstrappingApplication.java
new file mode 100644
index 0000000000..4896408502
--- /dev/null
+++ b/cdi/src/main/java/com/baeldung/cdi2observers/application/BootstrappingApplication.java
@@ -0,0 +1,15 @@
+package com.baeldung.cdi.cdi2observers.application;
+
+import com.baeldung.cdi.cdi2observers.events.ExampleEvent;
+import javax.enterprise.inject.se.SeContainer;
+import javax.enterprise.inject.se.SeContainerInitializer;
+
+public class BootstrappingApplication {
+
+ public static void main(String... args) {
+ SeContainerInitializer containerInitializer = SeContainerInitializer.newInstance();
+ try (SeContainer container = containerInitializer.initialize()) {
+ container.getBeanManager().fireEvent(new ExampleEvent("Welcome to Baeldung!"));
+ }
+ }
+}
diff --git a/cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEvent.java b/cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEvent.java
new file mode 100644
index 0000000000..a2329d2ef1
--- /dev/null
+++ b/cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEvent.java
@@ -0,0 +1,14 @@
+package com.baeldung.cdi.cdi2observers.events;
+
+public class ExampleEvent {
+
+ private final String eventMessage;
+
+ public ExampleEvent(String eventMessage) {
+ this.eventMessage = eventMessage;
+ }
+
+ public String getEventMessage() {
+ return eventMessage;
+ }
+}
diff --git a/cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEventSource.java b/cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEventSource.java
new file mode 100644
index 0000000000..f37030778a
--- /dev/null
+++ b/cdi/src/main/java/com/baeldung/cdi2observers/events/ExampleEventSource.java
@@ -0,0 +1,14 @@
+package com.baeldung.cdi.cdi2observers.events;
+
+import javax.enterprise.event.Event;
+import javax.inject.Inject;
+
+public class ExampleEventSource {
+
+ @Inject
+ Event exampleEvent;
+
+ public void fireEvent() {
+ exampleEvent.fireAsync(new ExampleEvent("Welcome to Baeldung!"));
+ }
+}
diff --git a/cdi/src/main/java/com/baeldung/cdi2observers/observers/AnotherExampleEventObserver.java b/cdi/src/main/java/com/baeldung/cdi2observers/observers/AnotherExampleEventObserver.java
new file mode 100644
index 0000000000..34520c2b3d
--- /dev/null
+++ b/cdi/src/main/java/com/baeldung/cdi2observers/observers/AnotherExampleEventObserver.java
@@ -0,0 +1,12 @@
+package com.baeldung.cdi.cdi2observers.observers;
+
+import com.baeldung.cdi.cdi2observers.events.ExampleEvent;
+import javax.annotation.Priority;
+import javax.enterprise.event.Observes;
+
+public class AnotherExampleEventObserver {
+
+ public String onEvent(@Observes @Priority(2) ExampleEvent event) {
+ return event.getEventMessage();
+ }
+}
diff --git a/cdi/src/main/java/com/baeldung/cdi2observers/observers/ExampleEventObserver.java b/cdi/src/main/java/com/baeldung/cdi2observers/observers/ExampleEventObserver.java
new file mode 100644
index 0000000000..b3522b2ad0
--- /dev/null
+++ b/cdi/src/main/java/com/baeldung/cdi2observers/observers/ExampleEventObserver.java
@@ -0,0 +1,13 @@
+package com.baeldung.cdi.cdi2observers.observers;
+
+import com.baeldung.cdi.cdi2observers.events.ExampleEvent;
+import com.baeldung.cdi.cdi2observers.services.TextService;
+import javax.annotation.Priority;
+import javax.enterprise.event.Observes;
+
+public class ExampleEventObserver {
+
+ public String onEvent(@Observes @Priority(1) ExampleEvent event, TextService textService) {
+ return textService.parseText(event.getEventMessage());
+ }
+}
diff --git a/cdi/src/main/java/com/baeldung/cdi2observers/services/TextService.java b/cdi/src/main/java/com/baeldung/cdi2observers/services/TextService.java
new file mode 100644
index 0000000000..47788a0657
--- /dev/null
+++ b/cdi/src/main/java/com/baeldung/cdi2observers/services/TextService.java
@@ -0,0 +1,8 @@
+package com.baeldung.cdi.cdi2observers.services;
+
+public class TextService {
+
+ public String parseText(String text) {
+ return text.toUpperCase();
+ }
+}
diff --git a/cdi/src/test/java/com/baeldung/test/cdi2observers/tests/TextServiceUnitTest.java b/cdi/src/test/java/com/baeldung/test/cdi2observers/tests/TextServiceUnitTest.java
new file mode 100644
index 0000000000..deecf13f9a
--- /dev/null
+++ b/cdi/src/test/java/com/baeldung/test/cdi2observers/tests/TextServiceUnitTest.java
@@ -0,0 +1,14 @@
+package com.baeldung.cdi.cdi2observers.tests;
+
+import com.baeldung.cdi.cdi2observers.services.TextService;
+import static org.assertj.core.api.Assertions.assertThat;
+import org.junit.Test;
+
+public class TextServiceUnitTest {
+
+ @Test
+ public void givenTextServiceInstance_whenCalledparseText_thenCorrect() {
+ TextService textService = new TextService();
+ assertThat(textService.parseText("Baeldung")).isEqualTo("BAELDUNG");
+ }
+}
diff --git a/core-groovy/pom.xml b/core-groovy/pom.xml
index 909250710e..e54c766280 100644
--- a/core-groovy/pom.xml
+++ b/core-groovy/pom.xml
@@ -4,6 +4,7 @@
4.0.0
core-groovy
1.0-SNAPSHOT
+ core-groovy
jar
diff --git a/core-java-10/README.md b/core-java-10/README.md
index 84fa381a26..f0a25712a7 100644
--- a/core-java-10/README.md
+++ b/core-java-10/README.md
@@ -4,3 +4,4 @@
- [Java 10 LocalVariable Type-Inference](http://www.baeldung.com/java-10-local-variable-type-inference)
- [Guide to Java 10](http://www.baeldung.com/java-10-overview)
- [Copy a List to Another List in Java](http://www.baeldung.com/java-copy-list-to-another)
+- [Deep Dive Into the New Java JIT Compiler – Graal](https://www.baeldung.com/graal-java-jit-compiler)
diff --git a/core-java-8/README.md b/core-java-8/README.md
index ffd629a170..6786b29120 100644
--- a/core-java-8/README.md
+++ b/core-java-8/README.md
@@ -33,3 +33,4 @@
- [An Overview of Regular Expressions Performance in Java](https://www.baeldung.com/java-regex-performance)
- [Java Primitives versus Objects](https://www.baeldung.com/java-primitives-vs-objects)
- [How to Use if/else Logic in Java 8 Streams](https://www.baeldung.com/java-8-streams-if-else-logic)
+- [How to Replace Many if Statements in Java](https://www.baeldung.com/java-replace-if-statements)
diff --git a/core-java-9/pom.xml b/core-java-9/pom.xml
index f22d0a3ed9..cd1fa74dbb 100644
--- a/core-java-9/pom.xml
+++ b/core-java-9/pom.xml
@@ -1,7 +1,6 @@
4.0.0
- com.baeldung
core-java-9
0.2-SNAPSHOT
core-java-9
diff --git a/core-java-arrays/src/main/java/com/baeldung/array/operations/ArrayOperations.java b/core-java-arrays/src/main/java/com/baeldung/array/operations/ArrayOperations.java
index 98155ed952..d8cc0afd61 100644
--- a/core-java-arrays/src/main/java/com/baeldung/array/operations/ArrayOperations.java
+++ b/core-java-arrays/src/main/java/com/baeldung/array/operations/ArrayOperations.java
@@ -4,11 +4,13 @@ import java.lang.reflect.Array;
import java.util.Arrays;
import java.util.HashSet;
import java.util.LinkedHashSet;
+import java.util.LinkedList;
import java.util.Random;
import java.util.Set;
import java.util.function.Function;
import java.util.function.IntPredicate;
import java.util.function.Predicate;
+import java.util.stream.Stream;
import org.apache.commons.lang3.ArrayUtils;
@@ -194,4 +196,16 @@ public class ArrayOperations {
public static T getRandomFromObjectArray(T[] array) {
return array[new Random().nextInt(array.length)];
}
+
+ public static Integer[] intersectionSimple(final Integer[] a, final Integer[] b){
+ return Stream.of(a).filter(Arrays.asList(b)::contains).toArray(Integer[]::new);
+ }
+
+ public static Integer[] intersectionSet(final Integer[] a, final Integer[] b){
+ return Stream.of(a).filter(Arrays.asList(b)::contains).distinct().toArray(Integer[]::new);
+ }
+
+ public static Integer[] intersectionMultiSet(final Integer[] a, final Integer[] b){
+ return Stream.of(a).filter(new LinkedList<>(Arrays.asList(b))::remove).toArray(Integer[]::new);
+ }
}
diff --git a/core-java-arrays/src/test/java/com/baeldung/array/operations/IntersectionUnitTest.java b/core-java-arrays/src/test/java/com/baeldung/array/operations/IntersectionUnitTest.java
new file mode 100644
index 0000000000..3c61060ea8
--- /dev/null
+++ b/core-java-arrays/src/test/java/com/baeldung/array/operations/IntersectionUnitTest.java
@@ -0,0 +1,66 @@
+package com.baeldung.array.operations;
+
+import org.junit.jupiter.api.Test;
+
+import static com.baeldung.array.operations.ArrayOperations.intersectionMultiSet;
+import static com.baeldung.array.operations.ArrayOperations.intersectionSet;
+import static com.baeldung.array.operations.ArrayOperations.intersectionSimple;
+import static org.assertj.core.api.Assertions.assertThat;
+
+class IntersectionUnitTest {
+ private static final Integer[] a = { 1, 3, 2 };
+ private static final Integer[] b = { 4, 3, 2, 4, 2, 3, 4, 4, 3 };
+ private static final Integer[] c = { 1, 3, 2, 3, 3, 2 };
+
+ @Test
+ void whenIntersectionSimpleIsUsed_thenCommonEntriesAreInTheResult() {
+ assertThat(intersectionSimple(a, b)).isEqualTo(new Integer[] { 3, 2 });
+ assertThat(intersectionSimple(b, a)).isEqualTo(new Integer[] { 3, 2, 2, 3, 3 });
+ }
+
+ @Test
+ void whenIntersectionSimpleIsUsedWithAnArrayAndItself_thenTheResultIsTheIdentity() {
+ assertThat(intersectionSimple(b, b)).isEqualTo(b);
+ assertThat(intersectionSimple(a, a)).isEqualTo(a);
+ }
+
+ @Test
+ void whenIntersectionSetIsUsed_thenCommonEntriesAreInTheResult() {
+ assertThat(intersectionSet(b, a)).isEqualTo(new Integer[] { 3, 2 });
+ }
+
+ @Test
+ void whenIntersectionSetIsUsed_thenTheNumberOfEntriesDoesNotChangeWithTheParameterOrder() {
+ assertThat(intersectionSet(a, b)).isEqualTo(new Integer[] { 3, 2 });
+ assertThat(intersectionSet(b, a)).isEqualTo(new Integer[] { 3, 2 });
+ }
+
+ @Test
+ void whenIntersectionSetIsUsedWithAnArrayAndWithItself_andTheInputHasNoDuplicateEntries_ThenTheResultIsTheIdentity() {
+ assertThat(intersectionSet(a, a)).isEqualTo(a);
+ }
+
+ @Test
+ void whenIntersectionSetIsUsedWithAnArrayAndWithItself_andTheInputHasDuplicateEntries_ThenTheResultIsNotTheIdentity() {
+ assertThat(intersectionSet(b, b)).isNotEqualTo(b);
+ }
+
+ @Test
+ void whenMultiSetIsUsed_thenCommonEntriesAreInTheResult() {
+ assertThat(intersectionMultiSet(b, a)).isEqualTo(new Integer[] { 3, 2 });
+ }
+
+ @Test
+ void whenIntersectionMultiSetIsUsed_thenTheNumberOfEntriesDoesNotChangeWithTheParameterOrder() {
+ assertThat(intersectionMultiSet(a, b)).isEqualTo(new Integer[] { 3, 2 });
+ assertThat(intersectionMultiSet(b, a)).isEqualTo(new Integer[] { 3, 2 });
+ assertThat(intersectionMultiSet(b, c)).isEqualTo(new Integer[] { 3, 2, 2, 3, 3 });
+ assertThat(intersectionMultiSet(c, b)).isEqualTo(new Integer[] { 3, 2, 3, 3, 2 });
+ }
+
+ @Test
+ void whenIntersectionMultiSetIsUsedWithAnArrayAndWithItself_ThenTheResultIsTheIdentity() {
+ assertThat(intersectionMultiSet(b, b)).isEqualTo(b);
+ assertThat(intersectionMultiSet(a, a)).isEqualTo(a);
+ }
+}
\ No newline at end of file
diff --git a/core-java-collections/README.md b/core-java-collections/README.md
index 0fcf7367c7..858dbef0b3 100644
--- a/core-java-collections/README.md
+++ b/core-java-collections/README.md
@@ -50,3 +50,4 @@
- [Check If Two Lists are Equal in Java](http://www.baeldung.com/java-test-a-list-for-ordinality-and-equality)
- [Java List Initialization in One Line](https://www.baeldung.com/java-init-list-one-line)
- [ClassCastException: Arrays$ArrayList cannot be cast to ArrayList](https://www.baeldung.com/java-classcastexception-arrays-arraylist)
+- [A Guide to EnumMap](https://www.baeldung.com/java-enum-map)
diff --git a/core-java-collections/src/main/java/com/baeldung/java/list/WaysToIterate.java b/core-java-collections/src/main/java/com/baeldung/java/list/WaysToIterate.java
new file mode 100644
index 0000000000..3cce08eabb
--- /dev/null
+++ b/core-java-collections/src/main/java/com/baeldung/java/list/WaysToIterate.java
@@ -0,0 +1,67 @@
+package com.baeldung.java.list;
+
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.List;
+import java.util.ListIterator;
+
+/**
+ * Demonstrates the different ways to loop over
+ * the elements of a list.
+ */
+public class WaysToIterate {
+
+ List countries = Arrays.asList("Germany", "Panama", "Australia");
+
+ /**
+ * Iterate over a list using a basic for loop
+ */
+ public void iterateWithForLoop() {
+ for (int i = 0; i < countries.size(); i++) {
+ System.out.println(countries.get(i));
+ }
+ }
+
+ /**
+ * Iterate over a list using the enhanced for loop
+ */
+ public void iterateWithEnhancedForLoop() {
+ for (String country : countries) {
+ System.out.println(country);
+ }
+ }
+
+ /**
+ * Iterate over a list using an Iterator
+ */
+ public void iterateWithIterator() {
+ Iterator countriesIterator = countries.iterator();
+ while(countriesIterator.hasNext()) {
+ System.out.println(countriesIterator.next());
+ }
+ }
+
+ /**
+ * Iterate over a list using a ListIterator
+ */
+ public void iterateWithListIterator() {
+ ListIterator listIterator = countries.listIterator();
+ while(listIterator.hasNext()) {
+ System.out.println(listIterator.next());
+ }
+ }
+
+ /**
+ * Iterate over a list using the Iterable.forEach() method
+ */
+ public void iterateWithForEach() {
+ countries.forEach(System.out::println);
+ }
+
+ /**
+ * Iterate over a list using the Stream.forEach() method
+ */
+ public void iterateWithStreamForEach() {
+ countries.stream().forEach((c) -> System.out.println(c));
+ }
+}
\ No newline at end of file
diff --git a/core-java-collections/src/test/java/com/baeldung/java/list/WaysToIterateUnitTest.java b/core-java-collections/src/test/java/com/baeldung/java/list/WaysToIterateUnitTest.java
new file mode 100644
index 0000000000..973c60b233
--- /dev/null
+++ b/core-java-collections/src/test/java/com/baeldung/java/list/WaysToIterateUnitTest.java
@@ -0,0 +1,71 @@
+package com.baeldung.java.list;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.List;
+import java.util.ListIterator;
+
+import org.junit.Test;
+
+public class WaysToIterateUnitTest {
+
+ List globalCountries = new ArrayList();
+ List europeanCountries = Arrays.asList("Germany", "Panama", "Australia");
+
+ @Test
+ public void whenIteratingUsingForLoop_thenReturnThreeAsSizeOfList() {
+ for (int i = 0; i < europeanCountries.size(); i++) {
+ globalCountries.add(europeanCountries.get(i));
+ }
+ assertEquals(globalCountries.size(), 3);
+ globalCountries.clear();
+ }
+
+ @Test
+ public void whenIteratingUsingEnhancedForLoop_thenReturnThreeAsSizeOfList() {
+ for (String country : europeanCountries) {
+ globalCountries.add(country);
+ }
+ assertEquals(globalCountries.size(), 3);
+ globalCountries.clear();
+ }
+
+ @Test
+ public void whenIteratingUsingIterator_thenReturnThreeAsSizeOfList() {
+ Iterator countriesIterator = europeanCountries.iterator();
+ while (countriesIterator.hasNext()) {
+ globalCountries.add(countriesIterator.next());
+ }
+
+ assertEquals(globalCountries.size(), 3);
+ globalCountries.clear();
+ }
+
+ @Test
+ public void whenIteratingUsingListIterator_thenReturnThreeAsSizeOfList() {
+ ListIterator countriesIterator = europeanCountries.listIterator();
+ while (countriesIterator.hasNext()) {
+ globalCountries.add(countriesIterator.next());
+ }
+
+ assertEquals(globalCountries.size(), 3);
+ globalCountries.clear();
+ }
+
+ @Test
+ public void whenIteratingUsingForEach_thenReturnThreeAsSizeOfList() {
+ europeanCountries.forEach(country -> globalCountries.add(country));
+ assertEquals(globalCountries.size(), 3);
+ globalCountries.clear();
+ }
+
+ @Test
+ public void whenIteratingUsingStreamForEach_thenReturnThreeAsSizeOfList() {
+ europeanCountries.stream().forEach((country) -> globalCountries.add(country));
+ assertEquals(globalCountries.size(), 3);
+ globalCountries.clear();
+ }
+}
\ No newline at end of file
diff --git a/core-java-concurrency/src/main/java/com/baeldung/concurrent/Scheduledexecutorservice/ScheduledExecutorServiceDemo.java b/core-java-concurrency/src/main/java/com/baeldung/concurrent/Scheduledexecutorservice/ScheduledExecutorServiceDemo.java
index b77019eea5..0989195ba7 100644
--- a/core-java-concurrency/src/main/java/com/baeldung/concurrent/Scheduledexecutorservice/ScheduledExecutorServiceDemo.java
+++ b/core-java-concurrency/src/main/java/com/baeldung/concurrent/Scheduledexecutorservice/ScheduledExecutorServiceDemo.java
@@ -1,34 +1,52 @@
package com.baeldung.concurrent.Scheduledexecutorservice;
import java.util.concurrent.Executors;
-import java.util.concurrent.Future;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
+import java.util.function.Function;
public class ScheduledExecutorServiceDemo {
- public void execute() {
+ private void execute() {
ScheduledExecutorService executorService = Executors.newSingleThreadScheduledExecutor();
-
- ScheduledFuture> scheduledFuture = executorService.schedule(() -> {
- // Task
- }, 1, TimeUnit.SECONDS);
-
- executorService.scheduleAtFixedRate(() -> {
- // Task
- }, 1, 10, TimeUnit.SECONDS);
-
- executorService.scheduleWithFixedDelay(() -> {
- // Task
- }, 1, 10, TimeUnit.SECONDS);
-
- Future future = executorService.schedule(() -> {
- // Task
- return "Hellow world";
- }, 1, TimeUnit.SECONDS);
-
+ getTasksToRun().apply(executorService);
executorService.shutdown();
}
+ private void executeWithMultiThread() {
+ ScheduledExecutorService executorService = Executors.newScheduledThreadPool(2);
+ getTasksToRun().apply(executorService);
+ executorService.shutdown();
+ }
+
+ private Function getTasksToRun() {
+ return (executorService -> {
+ ScheduledFuture> scheduledFuture1 = executorService.schedule(() -> {
+ // Task
+ }, 1, TimeUnit.SECONDS);
+
+ ScheduledFuture> scheduledFuture2 = executorService.scheduleAtFixedRate(() -> {
+ // Task
+ }, 1, 10, TimeUnit.SECONDS);
+
+ ScheduledFuture> scheduledFuture3 = executorService.scheduleWithFixedDelay(() -> {
+ // Task
+ }, 1, 10, TimeUnit.SECONDS);
+
+ ScheduledFuture scheduledFuture4 = executorService.schedule(() -> {
+ // Task
+ return "Hellow world";
+ }, 1, TimeUnit.SECONDS);
+ return null;
+ });
+ }
+
+ public static void main(String... args) {
+ ScheduledExecutorServiceDemo demo = new ScheduledExecutorServiceDemo();
+ demo.execute();
+ demo.executeWithMultiThread();
+ }
+
+
}
diff --git a/core-java-concurrency/src/main/java/com/baeldung/concurrent/countdownlatch/CountdownLatchCountExample.java b/core-java-concurrency/src/main/java/com/baeldung/concurrent/countdownlatch/CountdownLatchCountExample.java
new file mode 100644
index 0000000000..08c7eeec03
--- /dev/null
+++ b/core-java-concurrency/src/main/java/com/baeldung/concurrent/countdownlatch/CountdownLatchCountExample.java
@@ -0,0 +1,33 @@
+package com.baeldung.concurrent.countdownlatch;
+
+import java.util.concurrent.CountDownLatch;
+
+public class CountdownLatchCountExample {
+
+ private int count;
+
+ public CountdownLatchCountExample(int count) {
+ this.count = count;
+ }
+
+ public boolean callTwiceInSameThread() {
+ CountDownLatch countDownLatch = new CountDownLatch(count);
+ Thread t = new Thread(() -> {
+ countDownLatch.countDown();
+ countDownLatch.countDown();
+ });
+ t.start();
+
+ try {
+ countDownLatch.await();
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ return countDownLatch.getCount() == 0;
+ }
+
+ public static void main(String[] args) {
+ CountdownLatchCountExample ex = new CountdownLatchCountExample(2);
+ System.out.println("Is CountDown Completed : " + ex.callTwiceInSameThread());
+ }
+}
diff --git a/core-java-concurrency/src/main/java/com/baeldung/concurrent/countdownlatch/CountdownLatchResetExample.java b/core-java-concurrency/src/main/java/com/baeldung/concurrent/countdownlatch/CountdownLatchResetExample.java
new file mode 100644
index 0000000000..1828b7f91e
--- /dev/null
+++ b/core-java-concurrency/src/main/java/com/baeldung/concurrent/countdownlatch/CountdownLatchResetExample.java
@@ -0,0 +1,41 @@
+package com.baeldung.concurrent.countdownlatch;
+
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.atomic.AtomicInteger;
+
+public class CountdownLatchResetExample {
+
+ private int count;
+ private int threadCount;
+ private final AtomicInteger updateCount;
+
+ CountdownLatchResetExample(int count, int threadCount) {
+ updateCount = new AtomicInteger(0);
+ this.count = count;
+ this.threadCount = threadCount;
+ }
+
+ public int countWaits() {
+ CountDownLatch countDownLatch = new CountDownLatch(count);
+ ExecutorService es = Executors.newFixedThreadPool(threadCount);
+ for (int i = 0; i < threadCount; i++) {
+ es.execute(() -> {
+ long prevValue = countDownLatch.getCount();
+ countDownLatch.countDown();
+ if (countDownLatch.getCount() != prevValue) {
+ updateCount.incrementAndGet();
+ }
+ });
+ }
+
+ es.shutdown();
+ return updateCount.get();
+ }
+
+ public static void main(String[] args) {
+ CountdownLatchResetExample ex = new CountdownLatchResetExample(5, 20);
+ System.out.println("Count : " + ex.countWaits());
+ }
+}
diff --git a/core-java-concurrency/src/main/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierCompletionMethodExample.java b/core-java-concurrency/src/main/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierCompletionMethodExample.java
new file mode 100644
index 0000000000..7c1299da62
--- /dev/null
+++ b/core-java-concurrency/src/main/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierCompletionMethodExample.java
@@ -0,0 +1,45 @@
+package com.baeldung.concurrent.cyclicbarrier;
+
+import java.util.concurrent.BrokenBarrierException;
+import java.util.concurrent.CyclicBarrier;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.atomic.AtomicInteger;
+
+public class CyclicBarrierCompletionMethodExample {
+
+ private int count;
+ private int threadCount;
+ private final AtomicInteger updateCount;
+
+ CyclicBarrierCompletionMethodExample(int count, int threadCount) {
+ updateCount = new AtomicInteger(0);
+ this.count = count;
+ this.threadCount = threadCount;
+ }
+
+ public int countTrips() {
+
+ CyclicBarrier cyclicBarrier = new CyclicBarrier(count, () -> {
+ updateCount.incrementAndGet();
+ });
+
+ ExecutorService es = Executors.newFixedThreadPool(threadCount);
+ for (int i = 0; i < threadCount; i++) {
+ es.execute(() -> {
+ try {
+ cyclicBarrier.await();
+ } catch (InterruptedException | BrokenBarrierException e) {
+ e.printStackTrace();
+ }
+ });
+ }
+ es.shutdown();
+ return updateCount.get();
+ }
+
+ public static void main(String[] args) {
+ CyclicBarrierCompletionMethodExample ex = new CyclicBarrierCompletionMethodExample(5, 20);
+ System.out.println("Count : " + ex.countTrips());
+ }
+}
diff --git a/core-java-concurrency/src/main/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierCountExample.java b/core-java-concurrency/src/main/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierCountExample.java
new file mode 100644
index 0000000000..9d637b428b
--- /dev/null
+++ b/core-java-concurrency/src/main/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierCountExample.java
@@ -0,0 +1,32 @@
+package com.baeldung.concurrent.cyclicbarrier;
+
+import java.util.concurrent.BrokenBarrierException;
+import java.util.concurrent.CyclicBarrier;
+
+public class CyclicBarrierCountExample {
+
+ private int count;
+
+ public CyclicBarrierCountExample(int count) {
+ this.count = count;
+ }
+
+ public boolean callTwiceInSameThread() {
+ CyclicBarrier cyclicBarrier = new CyclicBarrier(count);
+ Thread t = new Thread(() -> {
+ try {
+ cyclicBarrier.await();
+ cyclicBarrier.await();
+ } catch (InterruptedException | BrokenBarrierException e) {
+ e.printStackTrace();
+ }
+ });
+ t.start();
+ return cyclicBarrier.isBroken();
+ }
+
+ public static void main(String[] args) {
+ CyclicBarrierCountExample ex = new CyclicBarrierCountExample(7);
+ System.out.println("Count : " + ex.callTwiceInSameThread());
+ }
+}
diff --git a/core-java-concurrency/src/main/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierResetExample.java b/core-java-concurrency/src/main/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierResetExample.java
new file mode 100644
index 0000000000..76b6198bc4
--- /dev/null
+++ b/core-java-concurrency/src/main/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierResetExample.java
@@ -0,0 +1,46 @@
+package com.baeldung.concurrent.cyclicbarrier;
+
+import java.util.concurrent.BrokenBarrierException;
+import java.util.concurrent.CyclicBarrier;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.atomic.AtomicInteger;
+
+public class CyclicBarrierResetExample {
+
+ private int count;
+ private int threadCount;
+ private final AtomicInteger updateCount;
+
+ CyclicBarrierResetExample(int count, int threadCount) {
+ updateCount = new AtomicInteger(0);
+ this.count = count;
+ this.threadCount = threadCount;
+ }
+
+ public int countWaits() {
+
+ CyclicBarrier cyclicBarrier = new CyclicBarrier(count);
+
+ ExecutorService es = Executors.newFixedThreadPool(threadCount);
+ for (int i = 0; i < threadCount; i++) {
+ es.execute(() -> {
+ try {
+ if (cyclicBarrier.getNumberWaiting() > 0) {
+ updateCount.incrementAndGet();
+ }
+ cyclicBarrier.await();
+ } catch (InterruptedException | BrokenBarrierException e) {
+ e.printStackTrace();
+ }
+ });
+ }
+ es.shutdown();
+ return updateCount.get();
+ }
+
+ public static void main(String[] args) {
+ CyclicBarrierResetExample ex = new CyclicBarrierResetExample(7, 20);
+ System.out.println("Count : " + ex.countWaits());
+ }
+}
diff --git a/core-java-concurrency/src/main/java/com/baeldung/concurrent/daemon/MultipleThreadsExample.java b/core-java-concurrency/src/main/java/com/baeldung/concurrent/daemon/MultipleThreadsExample.java
new file mode 100644
index 0000000000..492466e0c3
--- /dev/null
+++ b/core-java-concurrency/src/main/java/com/baeldung/concurrent/daemon/MultipleThreadsExample.java
@@ -0,0 +1,12 @@
+package com.baeldung.concurrent.daemon;
+
+public class MultipleThreadsExample {
+ public static void main(String[] args) {
+ NewThread t1 = new NewThread();
+ t1.setName("MyThread-1");
+ NewThread t2 = new NewThread();
+ t2.setName("MyThread-2");
+ t1.start();
+ t2.start();
+ }
+}
diff --git a/core-java-concurrency/src/main/java/com/baeldung/concurrent/daemon/NewThread.java b/core-java-concurrency/src/main/java/com/baeldung/concurrent/daemon/NewThread.java
index 4d87978070..370ce99c09 100644
--- a/core-java-concurrency/src/main/java/com/baeldung/concurrent/daemon/NewThread.java
+++ b/core-java-concurrency/src/main/java/com/baeldung/concurrent/daemon/NewThread.java
@@ -1,14 +1,18 @@
package com.baeldung.concurrent.daemon;
public class NewThread extends Thread {
-
public void run() {
long startTime = System.currentTimeMillis();
while (true) {
for (int i = 0; i < 10; i++) {
- System.out.println("New Thread is running..." + i);
+ System.out.println(this.getName() + ": New Thread is running..." + i);
+ try {
+ //Wait for one sec so it doesn't print too fast
+ Thread.sleep(1000);
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
}
-
// prevent the Thread to run forever. It will finish it's execution after 2 seconds
if (System.currentTimeMillis() - startTime > 2000) {
Thread.currentThread().interrupt();
diff --git a/core-java-concurrency/src/main/java/com/baeldung/concurrent/daemon/SingleThreadExample.java b/core-java-concurrency/src/main/java/com/baeldung/concurrent/daemon/SingleThreadExample.java
new file mode 100644
index 0000000000..16d8b2be1e
--- /dev/null
+++ b/core-java-concurrency/src/main/java/com/baeldung/concurrent/daemon/SingleThreadExample.java
@@ -0,0 +1,8 @@
+package com.baeldung.concurrent.daemon;
+
+public class SingleThreadExample {
+ public static void main(String[] args) {
+ NewThread t = new NewThread();
+ t.start();
+ }
+}
diff --git a/core-java-concurrency/src/test/java/com/baeldung/concurrent/countdownlatch/CountdownLatchCountExampleUnitTest.java b/core-java-concurrency/src/test/java/com/baeldung/concurrent/countdownlatch/CountdownLatchCountExampleUnitTest.java
new file mode 100644
index 0000000000..835efa53f2
--- /dev/null
+++ b/core-java-concurrency/src/test/java/com/baeldung/concurrent/countdownlatch/CountdownLatchCountExampleUnitTest.java
@@ -0,0 +1,15 @@
+package com.baeldung.concurrent.countdownlatch;
+
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+public class CountdownLatchCountExampleUnitTest {
+
+ @Test
+ public void whenCountDownLatch_completed() {
+ CountdownLatchCountExample ex = new CountdownLatchCountExample(2);
+ boolean isCompleted = ex.callTwiceInSameThread();
+ assertTrue(isCompleted);
+ }
+}
diff --git a/core-java-concurrency/src/test/java/com/baeldung/concurrent/countdownlatch/CountdownLatchResetExampleUnitTest.java b/core-java-concurrency/src/test/java/com/baeldung/concurrent/countdownlatch/CountdownLatchResetExampleUnitTest.java
new file mode 100644
index 0000000000..d2d43f6312
--- /dev/null
+++ b/core-java-concurrency/src/test/java/com/baeldung/concurrent/countdownlatch/CountdownLatchResetExampleUnitTest.java
@@ -0,0 +1,15 @@
+package com.baeldung.concurrent.countdownlatch;
+
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+public class CountdownLatchResetExampleUnitTest {
+
+ @Test
+ public void whenCountDownLatch_noReset() {
+ CountdownLatchResetExample ex = new CountdownLatchResetExample(7,20);
+ int lineCount = ex.countWaits();
+ assertTrue(lineCount <= 7);
+ }
+}
diff --git a/core-java-concurrency/src/test/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierCompletionMethodExampleUnitTest.java b/core-java-concurrency/src/test/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierCompletionMethodExampleUnitTest.java
new file mode 100644
index 0000000000..310063c86c
--- /dev/null
+++ b/core-java-concurrency/src/test/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierCompletionMethodExampleUnitTest.java
@@ -0,0 +1,15 @@
+package com.baeldung.concurrent.cyclicbarrier;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+public class CyclicBarrierCompletionMethodExampleUnitTest {
+
+ @Test
+ public void whenCyclicBarrier_countTrips() {
+ CyclicBarrierCompletionMethodExample ex = new CyclicBarrierCompletionMethodExample(7,20);
+ int lineCount = ex.countTrips();
+ assertEquals(2, lineCount);
+ }
+}
diff --git a/core-java-concurrency/src/test/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierCountExampleUnitTest.java b/core-java-concurrency/src/test/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierCountExampleUnitTest.java
new file mode 100644
index 0000000000..9b7f3d9945
--- /dev/null
+++ b/core-java-concurrency/src/test/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierCountExampleUnitTest.java
@@ -0,0 +1,15 @@
+package com.baeldung.concurrent.cyclicbarrier;
+
+import static org.junit.Assert.assertFalse;
+
+import org.junit.Test;
+
+public class CyclicBarrierCountExampleUnitTest {
+
+ @Test
+ public void whenCyclicBarrier_notCompleted() {
+ CyclicBarrierCountExample ex = new CyclicBarrierCountExample(2);
+ boolean isCompleted = ex.callTwiceInSameThread();
+ assertFalse(isCompleted);
+ }
+}
diff --git a/core-java-concurrency/src/test/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierResetExampleUnitTest.java b/core-java-concurrency/src/test/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierResetExampleUnitTest.java
new file mode 100644
index 0000000000..8d2b148f06
--- /dev/null
+++ b/core-java-concurrency/src/test/java/com/baeldung/concurrent/cyclicbarrier/CyclicBarrierResetExampleUnitTest.java
@@ -0,0 +1,15 @@
+package com.baeldung.concurrent.cyclicbarrier;
+
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+public class CyclicBarrierResetExampleUnitTest {
+
+ @Test
+ public void whenCyclicBarrier_reset() {
+ CyclicBarrierResetExample ex = new CyclicBarrierResetExample(7,20);
+ int lineCount = ex.countWaits();
+ assertTrue(lineCount > 7);
+ }
+}
diff --git a/core-java-io/README.md b/core-java-io/README.md
index c81e466b57..3d028783ed 100644
--- a/core-java-io/README.md
+++ b/core-java-io/README.md
@@ -34,3 +34,4 @@
- [Read a File into an ArrayList](https://www.baeldung.com/java-file-to-arraylist)
- [Guide to Java OutputStream](https://www.baeldung.com/java-outputstream)
- [Reading a CSV File into an Array](https://www.baeldung.com/java-csv-file-array)
+- [Guide to BufferedReader](https://www.baeldung.com/java-buffered-reader)
diff --git a/core-java-lang/README.md b/core-java-lang/README.md
index 85312cba68..79d2375c24 100644
--- a/core-java-lang/README.md
+++ b/core-java-lang/README.md
@@ -56,4 +56,6 @@
- [How to Separate Double into Integer and Decimal Parts](https://www.baeldung.com/java-separate-double-into-integer-decimal-parts)
- [“Sneaky Throws” in Java](http://www.baeldung.com/java-sneaky-throws)
- [Inheritance and Composition (Is-a vs Has-a relationship) in Java](http://www.baeldung.com/java-inheritance-composition)
+- [A Guide to Constructors in Java](https://www.baeldung.com/java-constructors)
+- [Retrieving a Class Name in Java](https://www.baeldung.com/java-class-name)
diff --git a/core-java-lang/pom.xml b/core-java-lang/pom.xml
index ace39de274..2f307859f1 100644
--- a/core-java-lang/pom.xml
+++ b/core-java-lang/pom.xml
@@ -66,6 +66,12 @@
mail
${javax.mail.version}
+
+ nl.jqno.equalsverifier
+ equalsverifier
+ ${equalsverifier.version}
+ test
+
@@ -424,6 +430,7 @@
3.1.1
2.0.3.RELEASE
1.6.0
+ 3.0.3
diff --git a/core-java-lang/src/main/java/com/baeldung/className/RetrievingClassName.java b/core-java-lang/src/main/java/com/baeldung/className/RetrievingClassName.java
new file mode 100644
index 0000000000..ab6c8a51ff
--- /dev/null
+++ b/core-java-lang/src/main/java/com/baeldung/className/RetrievingClassName.java
@@ -0,0 +1,9 @@
+package com.baeldung.className;
+
+public class RetrievingClassName {
+
+ public class InnerClass {
+
+ }
+
+}
diff --git a/core-java-lang/src/main/java/com/baeldung/constructors/BankAccount.java b/core-java-lang/src/main/java/com/baeldung/constructors/BankAccount.java
new file mode 100644
index 0000000000..3d50e85245
--- /dev/null
+++ b/core-java-lang/src/main/java/com/baeldung/constructors/BankAccount.java
@@ -0,0 +1,56 @@
+package com.baeldung.constructors;
+
+import java.time.LocalDateTime;
+
+class BankAccount {
+ String name;
+ LocalDateTime opened;
+ double balance;
+
+ @Override
+ public String toString() {
+ return String.format("%s, %s, %f", this.name, this.opened.toString(), this.balance);
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public LocalDateTime getOpened() {
+ return opened;
+ }
+
+ public double getBalance() {
+ return this.balance;
+ }
+}
+
+class BankAccountEmptyConstructor extends BankAccount {
+ public BankAccountEmptyConstructor() {
+ this.name = "";
+ this.opened = LocalDateTime.now();
+ this.balance = 0.0d;
+ }
+}
+
+class BankAccountParameterizedConstructor extends BankAccount {
+ public BankAccountParameterizedConstructor(String name, LocalDateTime opened, double balance) {
+ this.name = name;
+ this.opened = opened;
+ this.balance = balance;
+ }
+}
+
+class BankAccountCopyConstructor extends BankAccount {
+ public BankAccountCopyConstructor(String name, LocalDateTime opened, double balance) {
+ this.name = name;
+ this.opened = opened;
+ this.balance = balance;
+ }
+
+ public BankAccountCopyConstructor(BankAccount other) {
+ this.name = other.name;
+ this.opened = LocalDateTime.now();
+ this.balance = 0.0f;
+ }
+}
diff --git a/core-java-lang/src/main/java/com/baeldung/constructors/Transaction.java b/core-java-lang/src/main/java/com/baeldung/constructors/Transaction.java
new file mode 100644
index 0000000000..14704f507a
--- /dev/null
+++ b/core-java-lang/src/main/java/com/baeldung/constructors/Transaction.java
@@ -0,0 +1,25 @@
+package com.baeldung.constructors;
+
+import java.time.LocalDateTime;
+
+class Transaction {
+ final BankAccountEmptyConstructor bankAccount;
+ final LocalDateTime date;
+ final double amount;
+
+ public Transaction(BankAccountEmptyConstructor account, LocalDateTime date, double amount) {
+ this.bankAccount = account;
+ this.date = date;
+ this.amount = amount;
+ }
+
+ /*
+ * Compilation Error :'(, all final variables must be explicitly initialised.
+ * public Transaction() {
+ * }
+ */
+
+ public void invalidMethod() {
+ // this.amount = 102.03; // Results in a compiler error. You cannot change the value of a final variable.
+ }
+}
diff --git a/core-java-lang/src/main/java/com/baeldung/equalshashcode/Money.java b/core-java-lang/src/main/java/com/baeldung/equalshashcode/Money.java
new file mode 100644
index 0000000000..60c043545d
--- /dev/null
+++ b/core-java-lang/src/main/java/com/baeldung/equalshashcode/Money.java
@@ -0,0 +1,36 @@
+package com.baeldung.equalshashcode;
+
+class Money {
+
+ int amount;
+ String currencyCode;
+
+ Money(int amount, String currencyCode) {
+ this.amount = amount;
+ this.currencyCode = currencyCode;
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (o == this)
+ return true;
+ if (!(o instanceof Money))
+ return false;
+ Money other = (Money)o;
+ boolean currencyCodeEquals = (this.currencyCode == null && other.currencyCode == null)
+ || (this.currencyCode != null && this.currencyCode.equals(other.currencyCode));
+ return this.amount == other.amount
+ && currencyCodeEquals;
+ }
+
+ @Override
+ public int hashCode() {
+ int result = 17;
+ result = 31 * result + amount;
+ if (currencyCode != null) {
+ result = 31 * result + currencyCode.hashCode();
+ }
+ return result;
+ }
+
+}
diff --git a/core-java-lang/src/main/java/com/baeldung/equalshashcode/Team.java b/core-java-lang/src/main/java/com/baeldung/equalshashcode/Team.java
new file mode 100644
index 0000000000..c2dee1de6b
--- /dev/null
+++ b/core-java-lang/src/main/java/com/baeldung/equalshashcode/Team.java
@@ -0,0 +1,39 @@
+package com.baeldung.equalshashcode;
+
+class Team {
+
+ final String city;
+ final String department;
+
+ Team(String city, String department) {
+ this.city = city;
+ this.department = department;
+ }
+
+ @Override
+ public final boolean equals(Object o) {
+ if (o == this)
+ return true;
+ if (!(o instanceof Team))
+ return false;
+ Team otherTeam = (Team)o;
+ boolean cityEquals = (this.city == null && otherTeam.city == null)
+ || this.city != null && this.city.equals(otherTeam.city);
+ boolean departmentEquals = (this.department == null && otherTeam.department == null)
+ || this.department != null && this.department.equals(otherTeam.department);
+ return cityEquals && departmentEquals;
+ }
+
+ @Override
+ public final int hashCode() {
+ int result = 17;
+ if (city != null) {
+ result = 31 * result + city.hashCode();
+ }
+ if (department != null) {
+ result = 31 * result + department.hashCode();
+ }
+ return result;
+ }
+
+}
diff --git a/core-java-lang/src/main/java/com/baeldung/equalshashcode/Voucher.java b/core-java-lang/src/main/java/com/baeldung/equalshashcode/Voucher.java
new file mode 100644
index 0000000000..19f46e0358
--- /dev/null
+++ b/core-java-lang/src/main/java/com/baeldung/equalshashcode/Voucher.java
@@ -0,0 +1,38 @@
+package com.baeldung.equalshashcode;
+
+class Voucher {
+
+ private Money value;
+ private String store;
+
+ Voucher(int amount, String currencyCode, String store) {
+ this.value = new Money(amount, currencyCode);
+ this.store = store;
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (o == this)
+ return true;
+ if (!(o instanceof Voucher))
+ return false;
+ Voucher other = (Voucher)o;
+ boolean valueEquals = (this.value == null && other.value == null)
+ || (this.value != null && this.value.equals(other.value));
+ boolean storeEquals = (this.store == null && other.store == null)
+ || (this.store != null && this.store.equals(other.store));
+ return valueEquals && storeEquals;
+ }
+
+ @Override
+ public int hashCode() {
+ int result = 17;
+ if (this.value != null) {
+ result = 31 * result + value.hashCode();
+ }
+ if (this.store != null) {
+ result = 31 * result + store.hashCode();
+ }
+ return result;
+ }
+}
\ No newline at end of file
diff --git a/core-java-lang/src/main/java/com/baeldung/equalshashcode/WrongTeam.java b/core-java-lang/src/main/java/com/baeldung/equalshashcode/WrongTeam.java
new file mode 100644
index 0000000000..c4477aa790
--- /dev/null
+++ b/core-java-lang/src/main/java/com/baeldung/equalshashcode/WrongTeam.java
@@ -0,0 +1,30 @@
+package com.baeldung.equalshashcode;
+
+/* (non-Javadoc)
+* This class overrides equals, but it doesn't override hashCode.
+*
+* To see which problems this leads to:
+* TeamUnitTest.givenMapKeyWithoutHashCode_whenSearched_thenReturnsWrongValue
+*/
+class WrongTeam {
+
+ String city;
+ String department;
+
+ WrongTeam(String city, String department) {
+ this.city = city;
+ this.department = department;
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (o == this)
+ return true;
+ if (!(o instanceof WrongTeam))
+ return false;
+ WrongTeam otherTeam = (WrongTeam)o;
+ return this.city == otherTeam.city
+ && this.department == otherTeam.department;
+ }
+
+}
diff --git a/core-java-lang/src/main/java/com/baeldung/equalshashcode/WrongVoucher.java b/core-java-lang/src/main/java/com/baeldung/equalshashcode/WrongVoucher.java
new file mode 100644
index 0000000000..97935bf8de
--- /dev/null
+++ b/core-java-lang/src/main/java/com/baeldung/equalshashcode/WrongVoucher.java
@@ -0,0 +1,47 @@
+package com.baeldung.equalshashcode;
+
+/* (non-Javadoc)
+* This class extends the Money class that has overridden the equals method and once again overrides the equals method.
+*
+* To see which problems this leads to:
+* MoneyUnitTest.givenMoneyAndVoucherInstances_whenEquals_thenReturnValuesArentSymmetric
+*/
+class WrongVoucher extends Money {
+
+ private String store;
+
+ WrongVoucher(int amount, String currencyCode, String store) {
+ super(amount, currencyCode);
+
+ this.store = store;
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (o == this)
+ return true;
+ if (!(o instanceof WrongVoucher))
+ return false;
+ WrongVoucher other = (WrongVoucher)o;
+ boolean currencyCodeEquals = (this.currencyCode == null && other.currencyCode == null)
+ || (this.currencyCode != null && this.currencyCode.equals(other.currencyCode));
+ boolean storeEquals = (this.store == null && other.store == null)
+ || (this.store != null && this.store.equals(other.store));
+ return this.amount == other.amount
+ && currencyCodeEquals
+ && storeEquals;
+ }
+
+ @Override
+ public int hashCode() {
+ int result = 17;
+ result = 31 * result + amount;
+ if (this.currencyCode != null) {
+ result = 31 * result + currencyCode.hashCode();
+ }
+ if (this.store != null) {
+ result = 31 * result + store.hashCode();
+ }
+ return result;
+ }
+}
\ No newline at end of file
diff --git a/core-java-lang/src/test/java/com/baeldung/className/RetrievingClassNameUnitTest.java b/core-java-lang/src/test/java/com/baeldung/className/RetrievingClassNameUnitTest.java
new file mode 100644
index 0000000000..f9dbf91d2c
--- /dev/null
+++ b/core-java-lang/src/test/java/com/baeldung/className/RetrievingClassNameUnitTest.java
@@ -0,0 +1,156 @@
+package com.baeldung.className;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+
+public class RetrievingClassNameUnitTest {
+
+ // Retrieving Simple Name
+ @Test
+ public void givenRetrievingClassName_whenGetSimpleName_thenRetrievingClassName() {
+ assertEquals("RetrievingClassName", RetrievingClassName.class.getSimpleName());
+ }
+
+ @Test
+ public void givenPrimitiveInt_whenGetSimpleName_thenInt() {
+ assertEquals("int", int.class.getSimpleName());
+ }
+
+ @Test
+ public void givenRetrievingClassNameArray_whenGetSimpleName_thenRetrievingClassNameWithBrackets() {
+ assertEquals("RetrievingClassName[]", RetrievingClassName[].class.getSimpleName());
+ assertEquals("RetrievingClassName[][]", RetrievingClassName[][].class.getSimpleName());
+ }
+
+ @Test
+ public void givenAnonymousClass_whenGetSimpleName_thenEmptyString() {
+ assertEquals("", new RetrievingClassName() {}.getClass().getSimpleName());
+ }
+
+ // Retrieving Other Names
+ // - Primitive Types
+ @Test
+ public void givenPrimitiveInt_whenGetName_thenInt() {
+ assertEquals("int", int.class.getName());
+ }
+
+ @Test
+ public void givenPrimitiveInt_whenGetTypeName_thenInt() {
+ assertEquals("int", int.class.getTypeName());
+ }
+
+ @Test
+ public void givenPrimitiveInt_whenGetCanonicalName_thenInt() {
+ assertEquals("int", int.class.getCanonicalName());
+ }
+
+ // - Object Types
+ @Test
+ public void givenRetrievingClassName_whenGetName_thenCanonicalName() {
+ assertEquals("com.baeldung.className.RetrievingClassName", RetrievingClassName.class.getName());
+ }
+
+ @Test
+ public void givenRetrievingClassName_whenGetTypeName_thenCanonicalName() {
+ assertEquals("com.baeldung.className.RetrievingClassName", RetrievingClassName.class.getTypeName());
+ }
+
+ @Test
+ public void givenRetrievingClassName_whenGetCanonicalName_thenCanonicalName() {
+ assertEquals("com.baeldung.className.RetrievingClassName", RetrievingClassName.class.getCanonicalName());
+ }
+
+ // - Inner Classes
+ @Test
+ public void givenRetrievingClassNameInnerClass_whenGetName_thenCanonicalNameWithDollarSeparator() {
+ assertEquals("com.baeldung.className.RetrievingClassName$InnerClass", RetrievingClassName.InnerClass.class.getName());
+ }
+
+ @Test
+ public void givenRetrievingClassNameInnerClass_whenGetTypeName_thenCanonicalNameWithDollarSeparator() {
+ assertEquals("com.baeldung.className.RetrievingClassName$InnerClass", RetrievingClassName.InnerClass.class.getTypeName());
+ }
+
+ @Test
+ public void givenRetrievingClassNameInnerClass_whenGetCanonicalName_thenCanonicalName() {
+ assertEquals("com.baeldung.className.RetrievingClassName.InnerClass", RetrievingClassName.InnerClass.class.getCanonicalName());
+ }
+
+ // - Anonymous Classes
+ @Test
+ public void givenAnonymousClass_whenGetName_thenCallingClassCanonicalNameWithDollarSeparatorAndCountNumber() {
+ // These are the second and third appearences of an anonymous class in RetrievingClassNameUnitTest, hence $2 and $3 expectations
+ assertEquals("com.baeldung.className.RetrievingClassNameUnitTest$2", new RetrievingClassName() {}.getClass().getName());
+ assertEquals("com.baeldung.className.RetrievingClassNameUnitTest$3", new RetrievingClassName() {}.getClass().getName());
+ }
+
+ @Test
+ public void givenAnonymousClass_whenGetTypeName_thenCallingClassCanonicalNameWithDollarSeparatorAndCountNumber() {
+ // These are the fourth and fifth appearences of an anonymous class in RetrievingClassNameUnitTest, hence $4 and $5 expectations
+ assertEquals("com.baeldung.className.RetrievingClassNameUnitTest$4", new RetrievingClassName() {}.getClass().getTypeName());
+ assertEquals("com.baeldung.className.RetrievingClassNameUnitTest$5", new RetrievingClassName() {}.getClass().getTypeName());
+ }
+
+ @Test
+ public void givenAnonymousClass_whenGetCanonicalName_thenNull() {
+ assertNull(new RetrievingClassName() {}.getClass().getCanonicalName());
+ }
+
+ // - Arrays
+ @Test
+ public void givenPrimitiveIntArray_whenGetName_thenOpeningBracketsAndPrimitiveIntLetter() {
+ assertEquals("[I", int[].class.getName());
+ assertEquals("[[I", int[][].class.getName());
+ }
+
+ @Test
+ public void givenRetrievingClassNameArray_whenGetName_thenOpeningBracketsLetterLAndRetrievingClassNameGetName() {
+ assertEquals("[Lcom.baeldung.className.RetrievingClassName;", RetrievingClassName[].class.getName());
+ assertEquals("[[Lcom.baeldung.className.RetrievingClassName;", RetrievingClassName[][].class.getName());
+ }
+
+ @Test
+ public void givenRetrievingClassNameInnerClassArray_whenGetName_thenOpeningBracketsLetterLAndRetrievingClassNameInnerClassGetName() {
+ assertEquals("[Lcom.baeldung.className.RetrievingClassName$InnerClass;", RetrievingClassName.InnerClass[].class.getName());
+ assertEquals("[[Lcom.baeldung.className.RetrievingClassName$InnerClass;", RetrievingClassName.InnerClass[][].class.getName());
+ }
+
+ @Test
+ public void givenPrimitiveIntArray_whenGetTypeName_thenPrimitiveIntGetTypeNameWithBrackets() {
+ assertEquals("int[]", int[].class.getTypeName());
+ assertEquals("int[][]", int[][].class.getTypeName());
+ }
+
+ @Test
+ public void givenRetrievingClassNameArray_whenGetTypeName_thenRetrievingClassNameGetTypeNameWithBrackets() {
+ assertEquals("com.baeldung.className.RetrievingClassName[]", RetrievingClassName[].class.getTypeName());
+ assertEquals("com.baeldung.className.RetrievingClassName[][]", RetrievingClassName[][].class.getTypeName());
+ }
+
+ @Test
+ public void givenRetrievingClassNameInnerClassArray_whenGetTypeName_thenRetrievingClassNameInnerClassGetTypeNameWithBrackets() {
+ assertEquals("com.baeldung.className.RetrievingClassName$InnerClass[]", RetrievingClassName.InnerClass[].class.getTypeName());
+ assertEquals("com.baeldung.className.RetrievingClassName$InnerClass[][]", RetrievingClassName.InnerClass[][].class.getTypeName());
+ }
+
+ @Test
+ public void givenPrimitiveIntArray_whenGetCanonicalName_thenPrimitiveIntGetCanonicalNameWithBrackets() {
+ assertEquals("int[]", int[].class.getCanonicalName());
+ assertEquals("int[][]", int[][].class.getCanonicalName());
+ }
+
+ @Test
+ public void givenRetrievingClassNameArray_whenGetCanonicalName_thenRetrievingClassNameGetCanonicalNameWithBrackets() {
+ assertEquals("com.baeldung.className.RetrievingClassName[]", RetrievingClassName[].class.getCanonicalName());
+ assertEquals("com.baeldung.className.RetrievingClassName[][]", RetrievingClassName[][].class.getCanonicalName());
+ }
+
+ @Test
+ public void givenRetrievingClassNameInnerClassArray_whenGetCanonicalName_thenRetrievingClassNameInnerClassGetCanonicalNameWithBrackets() {
+ assertEquals("com.baeldung.className.RetrievingClassName.InnerClass[]", RetrievingClassName.InnerClass[].class.getCanonicalName());
+ assertEquals("com.baeldung.className.RetrievingClassName.InnerClass[][]", RetrievingClassName.InnerClass[][].class.getCanonicalName());
+ }
+
+}
\ No newline at end of file
diff --git a/core-java-lang/src/test/java/com/baeldung/compoundoperators/CompoundOperatorsUnitTest.java b/core-java-lang/src/test/java/com/baeldung/compoundoperators/CompoundOperatorsUnitTest.java
new file mode 100644
index 0000000000..532776edd4
--- /dev/null
+++ b/core-java-lang/src/test/java/com/baeldung/compoundoperators/CompoundOperatorsUnitTest.java
@@ -0,0 +1,111 @@
+package com.baeldung.compoundoperators;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class CompoundOperatorsUnitTest {
+
+ @Test
+ public void whenAssignmentOperatorIsUsed_thenValueIsAssigned() {
+ int x = 5;
+
+ assertEquals(5, x);
+ }
+
+ @Test
+ public void whenCompoundAssignmentUsed_thenSameAsSimpleAssignment() {
+ int a = 3, b = 3, c = -2;
+ a = a * c; // Simple assignment operator
+ b *= c; // Compound assignment operator
+
+ assertEquals(a, b);
+ }
+
+ @Test
+ public void whenAssignmentOperatorIsUsed_thenValueIsReturned() {
+ long x = 1;
+ long y = (x+=2);
+
+ assertEquals(3, y);
+ assertEquals(y, x);
+ }
+
+ @Test
+ public void whenCompoundOperatorsAreUsed_thenOperationsArePerformedAndAssigned() {
+ //Simple assignment
+ int x = 5; //x is 5
+
+ //Incrementation
+ x += 5; //x is 10
+ assertEquals(10, x);
+
+ //Decrementation
+ x -= 2; //x is 8
+ assertEquals(8, x);
+
+ //Multiplication
+ x *= 2; //x is 16
+ assertEquals(16, x);
+
+ //Division
+ x /= 4; //x is 4
+ assertEquals(4, x);
+
+ //Modulus
+ x %= 3; //x is 1
+ assertEquals(1, x);
+
+
+ //Binary AND
+ x &= 4; //x is 0
+ assertEquals(0, x);
+
+ //Binary exclusive OR
+ x ^= 4; //x is 4
+ assertEquals(4, x);
+
+ //Binary inclusive OR
+ x |= 8; //x is 12
+ assertEquals(12, x);
+
+
+ //Binary Left Shift
+ x <<= 2; //x is 48
+ assertEquals(48, x);
+
+ //Binary Right Shift
+ x >>= 2; //x is 12
+ assertEquals(12, x);
+
+ //Shift right zero fill
+ x >>>= 1; //x is 6
+ assertEquals(6, x);
+ }
+
+ @Test(expected = NullPointerException.class)
+ public void whenArrayIsNull_thenThrowNullException() {
+ int[] numbers = null;
+
+ //Trying Incrementation
+ numbers[2] += 5;
+ }
+
+ @Test(expected = ArrayIndexOutOfBoundsException.class)
+ public void whenArrayIndexNotCorrect_thenThrowArrayIndexException() {
+ int[] numbers = {0, 1};
+
+ //Trying Incrementation
+ numbers[2] += 5;
+ }
+
+ @Test
+ public void whenArrayIndexIsCorrect_thenPerformOperation() {
+ int[] numbers = {0, 1};
+
+ //Incrementation
+ numbers[1] += 5;
+ assertEquals(6, numbers[1]);
+ }
+
+}
diff --git a/core-java-lang/src/test/java/com/baeldung/constructors/ConstructorUnitTest.java b/core-java-lang/src/test/java/com/baeldung/constructors/ConstructorUnitTest.java
new file mode 100644
index 0000000000..2cd8832fbf
--- /dev/null
+++ b/core-java-lang/src/test/java/com/baeldung/constructors/ConstructorUnitTest.java
@@ -0,0 +1,53 @@
+package com.baeldung.constructors;
+
+import com.baeldung.constructors.*;
+
+import java.util.logging.Logger;
+import java.time.LocalDateTime;
+import java.time.Month;
+
+import org.junit.Test;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatCode;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+public class ConstructorUnitTest {
+ final static Logger LOGGER = Logger.getLogger(ConstructorUnitTest.class.getName());
+
+ @Test
+ public void givenNoExplicitContructor_whenUsed_thenFails() {
+ BankAccount account = new BankAccount();
+ assertThatThrownBy(() -> { account.toString(); }).isInstanceOf(Exception.class);
+ }
+
+ @Test
+ public void givenNoArgumentConstructor_whenUsed_thenSucceeds() {
+ BankAccountEmptyConstructor account = new BankAccountEmptyConstructor();
+ assertThatCode(() -> {
+ account.toString();
+ }).doesNotThrowAnyException();
+ }
+
+ @Test
+ public void givenParameterisedConstructor_whenUsed_thenSucceeds() {
+ LocalDateTime opened = LocalDateTime.of(2018, Month.JUNE, 29, 06, 30, 00);
+ BankAccountParameterizedConstructor account =
+ new BankAccountParameterizedConstructor("Tom", opened, 1000.0f);
+
+ assertThatCode(() -> {
+ account.toString();
+ }).doesNotThrowAnyException();
+ }
+
+ @Test
+ public void givenCopyContructor_whenUser_thenMaintainsLogic() {
+ LocalDateTime opened = LocalDateTime.of(2018, Month.JUNE, 29, 06, 30, 00);
+ BankAccountCopyConstructor account = new BankAccountCopyConstructor("Tim", opened, 1000.0f);
+ BankAccountCopyConstructor newAccount = new BankAccountCopyConstructor(account);
+
+ assertThat(account.getName()).isEqualTo(newAccount.getName());
+ assertThat(account.getOpened()).isNotEqualTo(newAccount.getOpened());
+
+ assertThat(newAccount.getBalance()).isEqualTo(0.0f);
+ }
+}
diff --git a/core-java-lang/src/test/java/com/baeldung/equalshashcode/MoneyUnitTest.java b/core-java-lang/src/test/java/com/baeldung/equalshashcode/MoneyUnitTest.java
new file mode 100644
index 0000000000..60584fdb53
--- /dev/null
+++ b/core-java-lang/src/test/java/com/baeldung/equalshashcode/MoneyUnitTest.java
@@ -0,0 +1,27 @@
+package com.baeldung.equalshashcode;
+
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.assertFalse;
+
+import org.junit.Test;
+
+public class MoneyUnitTest {
+
+ @Test
+ public void givenMoneyInstancesWithSameAmountAndCurrency_whenEquals_thenReturnsTrue() {
+ Money income = new Money(55, "USD");
+ Money expenses = new Money(55, "USD");
+
+ assertTrue(income.equals(expenses));
+ }
+
+ @Test
+ public void givenMoneyAndVoucherInstances_whenEquals_thenReturnValuesArentSymmetric() {
+ Money cash = new Money(42, "USD");
+ WrongVoucher voucher = new WrongVoucher(42, "USD", "Amazon");
+
+ assertFalse(voucher.equals(cash));
+ assertTrue(cash.equals(voucher));
+ }
+
+}
diff --git a/core-java-lang/src/test/java/com/baeldung/equalshashcode/TeamUnitTest.java b/core-java-lang/src/test/java/com/baeldung/equalshashcode/TeamUnitTest.java
new file mode 100644
index 0000000000..a2de408796
--- /dev/null
+++ b/core-java-lang/src/test/java/com/baeldung/equalshashcode/TeamUnitTest.java
@@ -0,0 +1,46 @@
+package com.baeldung.equalshashcode;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.junit.Test;
+
+import nl.jqno.equalsverifier.EqualsVerifier;
+
+public class TeamUnitTest {
+
+ @Test
+ public void givenMapKeyWithHashCode_whenSearched_thenReturnsCorrectValue() {
+ Map leaders = new HashMap<>();
+ leaders.put(new Team("New York", "development"), "Anne");
+ leaders.put(new Team("Boston", "development"), "Brian");
+ leaders.put(new Team("Boston", "marketing"), "Charlie");
+
+ Team myTeam = new Team("New York", "development");
+ String myTeamleader = leaders.get(myTeam);
+
+ assertEquals("Anne", myTeamleader);
+ }
+
+ @Test
+ public void givenMapKeyWithoutHashCode_whenSearched_thenReturnsWrongValue() {
+ Map leaders = new HashMap<>();
+ leaders.put(new WrongTeam("New York", "development"), "Anne");
+ leaders.put(new WrongTeam("Boston", "development"), "Brian");
+ leaders.put(new WrongTeam("Boston", "marketing"), "Charlie");
+
+ WrongTeam myTeam = new WrongTeam("New York", "development");
+ String myTeamleader = leaders.get(myTeam);
+
+ assertFalse("Anne".equals(myTeamleader));
+ }
+
+ @Test
+ public void equalsContract() {
+ EqualsVerifier.forClass(Team.class).verify();
+ }
+
+}
diff --git a/core-java-net/.gitignore b/core-java-net/.gitignore
new file mode 100644
index 0000000000..374c8bf907
--- /dev/null
+++ b/core-java-net/.gitignore
@@ -0,0 +1,25 @@
+*.class
+
+0.*
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+.resourceCache
+
+# Packaged files #
+*.jar
+*.war
+*.ear
+
+# Files generated by integration tests
+backup-pom.xml
+/bin/
+/temp
+
+#IntelliJ specific
+.idea/
+*.iml
\ No newline at end of file
diff --git a/core-java-net/README.md b/core-java-net/README.md
new file mode 100644
index 0000000000..b7a142ea27
--- /dev/null
+++ b/core-java-net/README.md
@@ -0,0 +1,3 @@
+=========
+
+## Core Java Net
diff --git a/core-java-net/pom.xml b/core-java-net/pom.xml
new file mode 100644
index 0000000000..28d5766a9a
--- /dev/null
+++ b/core-java-net/pom.xml
@@ -0,0 +1,19 @@
+
+ 4.0.0
+ core-java-net
+ 0.1.0-SNAPSHOT
+ jar
+ core-java-net
+
+
+ com.baeldung
+ parent-java
+ 0.0.1-SNAPSHOT
+ ../parent-java
+
+
+
+ core-java-net
+
+
diff --git a/core-java/src/main/java/com/baeldung/networking/proxies/CommandLineProxyDemo.java b/core-java-net/src/main/java/com/baeldung/networking/proxies/CommandLineProxyDemo.java
similarity index 100%
rename from core-java/src/main/java/com/baeldung/networking/proxies/CommandLineProxyDemo.java
rename to core-java-net/src/main/java/com/baeldung/networking/proxies/CommandLineProxyDemo.java
diff --git a/core-java/src/main/java/com/baeldung/networking/proxies/DirectProxyDemo.java b/core-java-net/src/main/java/com/baeldung/networking/proxies/DirectProxyDemo.java
similarity index 100%
rename from core-java/src/main/java/com/baeldung/networking/proxies/DirectProxyDemo.java
rename to core-java-net/src/main/java/com/baeldung/networking/proxies/DirectProxyDemo.java
diff --git a/core-java/src/main/java/com/baeldung/networking/proxies/SocksProxyDemo.java b/core-java-net/src/main/java/com/baeldung/networking/proxies/SocksProxyDemo.java
similarity index 100%
rename from core-java/src/main/java/com/baeldung/networking/proxies/SocksProxyDemo.java
rename to core-java-net/src/main/java/com/baeldung/networking/proxies/SocksProxyDemo.java
diff --git a/core-java/src/main/java/com/baeldung/networking/proxies/SystemPropertyProxyDemo.java b/core-java-net/src/main/java/com/baeldung/networking/proxies/SystemPropertyProxyDemo.java
similarity index 100%
rename from core-java/src/main/java/com/baeldung/networking/proxies/SystemPropertyProxyDemo.java
rename to core-java-net/src/main/java/com/baeldung/networking/proxies/SystemPropertyProxyDemo.java
diff --git a/core-java/src/main/java/com/baeldung/networking/proxies/UrlConnectionUtils.java b/core-java-net/src/main/java/com/baeldung/networking/proxies/UrlConnectionUtils.java
similarity index 100%
rename from core-java/src/main/java/com/baeldung/networking/proxies/UrlConnectionUtils.java
rename to core-java-net/src/main/java/com/baeldung/networking/proxies/UrlConnectionUtils.java
diff --git a/core-java/src/main/java/com/baeldung/networking/proxies/WebProxyDemo.java b/core-java-net/src/main/java/com/baeldung/networking/proxies/WebProxyDemo.java
similarity index 100%
rename from core-java/src/main/java/com/baeldung/networking/proxies/WebProxyDemo.java
rename to core-java-net/src/main/java/com/baeldung/networking/proxies/WebProxyDemo.java
diff --git a/core-java-net/src/test/resources/.gitignore b/core-java-net/src/test/resources/.gitignore
new file mode 100644
index 0000000000..83c05e60c8
--- /dev/null
+++ b/core-java-net/src/test/resources/.gitignore
@@ -0,0 +1,13 @@
+*.class
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+
+# Packaged files #
+*.jar
+*.war
+*.ear
\ No newline at end of file
diff --git a/core-java/README.md b/core-java/README.md
index 11d9fd2ee0..b8ad28cc0c 100644
--- a/core-java/README.md
+++ b/core-java/README.md
@@ -85,3 +85,7 @@
- [A Guide to SimpleDateFormat](https://www.baeldung.com/java-simple-date-format)
- [SSL Handshake Failures](https://www.baeldung.com/java-ssl-handshake-failures)
- [Implementing a Binary Tree in Java](https://www.baeldung.com/java-binary-tree)
+- [Changing the Order in a Sum Operation Can Produce Different Results?](https://www.baeldung.com/java-floating-point-sum-order)
+- [Java – Try with Resources](https://www.baeldung.com/java-try-with-resources)
+- [Abstract Classes in Java](https://www.baeldung.com/java-abstract-class)
+- [Guide to Character Encoding](https://www.baeldung.com/java-char-encoding)
diff --git a/core-java/pom.xml b/core-java/pom.xml
index 9fbc8f6810..64345ab14c 100644
--- a/core-java/pom.xml
+++ b/core-java/pom.xml
@@ -3,8 +3,8 @@
4.0.0
core-java
0.1.0-SNAPSHOT
- jar
core-java
+ jar
com.baeldung
diff --git a/core-java/src/main/java/com/baeldung/graph/Graph.java b/core-java/src/main/java/com/baeldung/graph/Graph.java
new file mode 100644
index 0000000000..43b5c0aa08
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/graph/Graph.java
@@ -0,0 +1,76 @@
+package com.baeldung.graph;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public class Graph {
+ private Map> adjVertices;
+
+ Graph() {
+ this.adjVertices = new HashMap>();
+ }
+
+ void addVertex(String label) {
+ adjVertices.putIfAbsent(new Vertex(label), new ArrayList<>());
+ }
+
+ void removeVertex(String label) {
+ Vertex v = new Vertex(label);
+ adjVertices.values().stream().map(e -> e.remove(v)).collect(Collectors.toList());
+ adjVertices.remove(new Vertex(label));
+ }
+
+ void addEdge(String label1, String label2) {
+ Vertex v1 = new Vertex(label1);
+ Vertex v2 = new Vertex(label2);
+ adjVertices.get(v1).add(v2);
+ adjVertices.get(v2).add(v1);
+ }
+
+ void removeEdge(String label1, String label2) {
+ Vertex v1 = new Vertex(label1);
+ Vertex v2 = new Vertex(label2);
+ List eV1 = adjVertices.get(v1);
+ List eV2 = adjVertices.get(v2);
+ if (eV1 != null)
+ eV1.remove(v2);
+ if (eV2 != null)
+ eV2.remove(v1);
+ }
+
+ List getAdjVertices(String label) {
+ return adjVertices.get(new Vertex(label));
+ }
+
+ String printGraph() {
+ StringBuffer sb = new StringBuffer();
+ for(Vertex v : adjVertices.keySet()) {
+ sb.append(v);
+ sb.append(adjVertices.get(v));
+ }
+ return sb.toString();
+ }
+
+ class Vertex {
+ String label;
+ Vertex(String label) {
+ this.label = label;
+ }
+ @Override
+ public boolean equals(Object obj) {
+ Vertex vertex = (Vertex) obj;
+ return vertex.label == label;
+ }
+ @Override
+ public int hashCode() {
+ return label.hashCode();
+ }
+ @Override
+ public String toString() {
+ return label;
+ }
+ }
+}
\ No newline at end of file
diff --git a/core-java/src/main/java/com/baeldung/graph/GraphTraversal.java b/core-java/src/main/java/com/baeldung/graph/GraphTraversal.java
new file mode 100644
index 0000000000..479e653a5c
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/graph/GraphTraversal.java
@@ -0,0 +1,44 @@
+package com.baeldung.graph;
+
+import java.util.LinkedHashSet;
+import java.util.LinkedList;
+import java.util.Queue;
+import java.util.Set;
+import java.util.Stack;
+
+import com.baeldung.graph.Graph.Vertex;
+
+public class GraphTraversal {
+ static Set depthFirstTraversal(Graph graph, String root) {
+ Set visited = new LinkedHashSet();
+ Stack stack = new Stack();
+ stack.push(root);
+ while (!stack.isEmpty()) {
+ String vertex = stack.pop();
+ if (!visited.contains(vertex)) {
+ visited.add(vertex);
+ for (Vertex v : graph.getAdjVertices(vertex)) {
+ stack.push(v.label);
+ }
+ }
+ }
+ return visited;
+ }
+
+ static Set breadthFirstTraversal(Graph graph, String root) {
+ Set visited = new LinkedHashSet();
+ Queue queue = new LinkedList();
+ queue.add(root);
+ visited.add(root);
+ while (!queue.isEmpty()) {
+ String vertex = queue.poll();
+ for (Vertex v : graph.getAdjVertices(vertex)) {
+ if (!visited.contains(v.label)) {
+ visited.add(v.label);
+ queue.add(v.label);
+ }
+ }
+ }
+ return visited;
+ }
+}
\ No newline at end of file
diff --git a/core-java/src/main/java/com/baeldung/printf/PrintfExamples.java b/core-java/src/main/java/com/baeldung/printf/PrintfExamples.java
new file mode 100644
index 0000000000..3d451f6f50
--- /dev/null
+++ b/core-java/src/main/java/com/baeldung/printf/PrintfExamples.java
@@ -0,0 +1,61 @@
+package com.baeldung.printf;
+
+import java.util.Date;
+import java.util.Locale;
+
+public class PrintfExamples {
+
+ public static void main(String[] args) {
+
+ printfNewLine();
+ printfChar();
+ printfString();
+ printfNumber();
+ printfDateTime();
+ printfBoolean();
+ }
+
+ private static void printfNewLine() {
+ System.out.printf("baeldung%nline%nterminator");
+ }
+
+ private static void printfString() {
+ System.out.printf("'%s' %n", "baeldung");
+ System.out.printf("'%S' %n", "baeldung");
+ System.out.printf("'%15s' %n", "baeldung");
+ System.out.printf("'%-10s' %n", "baeldung");
+ }
+
+ private static void printfChar() {
+ System.out.printf("%c%n", 's');
+ System.out.printf("%C%n", 's');
+ }
+
+ private static void printfNumber() {
+ System.out.printf("simple integer: %d%n", 10000L);
+
+ System.out.printf(Locale.US, "%,d %n", 10000);
+ System.out.printf(Locale.ITALY, "%,d %n", 10000);
+
+ System.out.printf("%f%n", 5.1473);
+ System.out.printf("'%5.2f'%n", 5.1473);
+ System.out.printf("'%5.2e'%n", 5.1473);
+ }
+
+ private static void printfBoolean() {
+ System.out.printf("%b%n", null);
+ System.out.printf("%B%n", false);
+ System.out.printf("%B%n", 5.3);
+ System.out.printf("%b%n", "random text");
+ }
+
+ private static void printfDateTime() {
+ Date date = new Date();
+ System.out.printf("%tT%n", date);
+ System.out.printf("hours %tH: minutes %tM: seconds %tS%n", date, date, date);
+ System.out.printf("%1$tH:%1$tM:%1$tS %1$tp %1$tL %1$tN %1$tz %n", date);
+
+ System.out.printf("%1$tA %1$tB %1$tY %n", date);
+ System.out.printf("%1$td.%1$tm.%1$ty %n", date);
+ }
+}
diff --git a/core-java/src/test/java/com/baeldung/graph/GraphTraversalUnitTest.java b/core-java/src/test/java/com/baeldung/graph/GraphTraversalUnitTest.java
new file mode 100644
index 0000000000..d955d56d95
--- /dev/null
+++ b/core-java/src/test/java/com/baeldung/graph/GraphTraversalUnitTest.java
@@ -0,0 +1,36 @@
+package com.baeldung.graph;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class GraphTraversalUnitTest {
+ @Test
+ public void givenAGraph_whenTraversingDepthFirst_thenExpectedResult() {
+ Graph graph = createGraph();
+ Assert.assertEquals("[Bob, Rob, Maria, Alice, Mark]",
+ GraphTraversal.depthFirstTraversal(graph, "Bob").toString());
+ }
+
+ @Test
+ public void givenAGraph_whenTraversingBreadthFirst_thenExpectedResult() {
+ Graph graph = createGraph();
+ Assert.assertEquals("[Bob, Alice, Rob, Mark, Maria]",
+ GraphTraversal.breadthFirstTraversal(graph, "Bob").toString());
+ }
+
+ Graph createGraph() {
+ Graph graph = new Graph();
+ graph.addVertex("Bob");
+ graph.addVertex("Alice");
+ graph.addVertex("Mark");
+ graph.addVertex("Rob");
+ graph.addVertex("Maria");
+ graph.addEdge("Bob", "Alice");
+ graph.addEdge("Bob", "Rob");
+ graph.addEdge("Alice", "Mark");
+ graph.addEdge("Rob", "Mark");
+ graph.addEdge("Alice", "Maria");
+ graph.addEdge("Rob", "Maria");
+ return graph;
+ }
+}
\ No newline at end of file
diff --git a/core-java/src/test/java/com/baeldung/regexp/optmization/OptimizedMatcherUnitTest.java b/core-java/src/test/java/com/baeldung/regexp/optmization/OptimizedMatcherManualTest.java
similarity index 98%
rename from core-java/src/test/java/com/baeldung/regexp/optmization/OptimizedMatcherUnitTest.java
rename to core-java/src/test/java/com/baeldung/regexp/optmization/OptimizedMatcherManualTest.java
index 2be6b6ad4b..f44968a5a7 100644
--- a/core-java/src/test/java/com/baeldung/regexp/optmization/OptimizedMatcherUnitTest.java
+++ b/core-java/src/test/java/com/baeldung/regexp/optmization/OptimizedMatcherManualTest.java
@@ -11,7 +11,7 @@ import java.util.regex.Pattern;
import static org.junit.Assert.assertTrue;
-public class OptimizedMatcherUnitTest {
+public class OptimizedMatcherManualTest {
private String action;
diff --git a/core-java/src/test/java/com/baeldung/string/StringReplaceAndRemoveUnitTest.java b/core-java/src/test/java/com/baeldung/string/StringReplaceAndRemoveUnitTest.java
new file mode 100644
index 0000000000..d952d2383b
--- /dev/null
+++ b/core-java/src/test/java/com/baeldung/string/StringReplaceAndRemoveUnitTest.java
@@ -0,0 +1,83 @@
+package com.baeldung.string;
+
+
+import org.apache.commons.lang3.StringUtils;
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+public class StringReplaceAndRemoveUnitTest {
+
+
+ @Test
+ public void givenTestStrings_whenReplace_thenProcessedString() {
+
+ String master = "Hello World Baeldung!";
+ String target = "Baeldung";
+ String replacement = "Java";
+ String processed = master.replace(target, replacement);
+ assertTrue(processed.contains(replacement));
+ assertFalse(processed.contains(target));
+
+ }
+
+ @Test
+ public void givenTestStrings_whenReplaceAll_thenProcessedString() {
+
+ String master2 = "Welcome to Baeldung, Hello World Baeldung";
+ String regexTarget= "(Baeldung)$";
+ String replacement = "Java";
+ String processed2 = master2.replaceAll(regexTarget, replacement);
+ assertTrue(processed2.endsWith("Java"));
+
+ }
+
+ @Test
+ public void givenTestStrings_whenStringBuilderMethods_thenProcessedString() {
+
+ String master = "Hello World Baeldung!";
+ String target = "Baeldung";
+ String replacement = "Java";
+
+ int startIndex = master.indexOf(target);
+ int stopIndex = startIndex + target.length();
+
+ StringBuilder builder = new StringBuilder(master);
+
+
+ builder.delete(startIndex, stopIndex);
+ assertFalse(builder.toString().contains(target));
+
+
+ builder.replace(startIndex, stopIndex, replacement);
+ assertTrue(builder.toString().contains(replacement));
+
+
+ }
+
+
+ @Test
+ public void givenTestStrings_whenStringUtilsMethods_thenProcessedStrings() {
+
+ String master = "Hello World Baeldung!";
+ String target = "Baeldung";
+ String replacement = "Java";
+
+ String processed = StringUtils.replace(master, target, replacement);
+ assertTrue(processed.contains(replacement));
+
+ String master2 = "Hello World Baeldung!";
+ String target2 = "baeldung";
+ String processed2 = StringUtils.replaceIgnoreCase(master2, target2, replacement);
+ assertFalse(processed2.contains(target));
+
+ }
+
+
+
+
+
+
+
+}
diff --git a/core-kotlin/pom.xml b/core-kotlin/pom.xml
index 2b559b19e0..ed79ebc01b 100644
--- a/core-kotlin/pom.xml
+++ b/core-kotlin/pom.xml
@@ -3,6 +3,7 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
core-kotlin
+ core-kotlin
jar
diff --git a/core-kotlin/src/main/kotlin/com/baeldung/operators/Money.kt b/core-kotlin/src/main/kotlin/com/baeldung/operators/Money.kt
new file mode 100644
index 0000000000..93eb78c5b6
--- /dev/null
+++ b/core-kotlin/src/main/kotlin/com/baeldung/operators/Money.kt
@@ -0,0 +1,31 @@
+package com.baeldung.operators
+
+import java.math.BigDecimal
+
+enum class Currency {
+ DOLLARS, EURO
+}
+
+class Money(val amount: BigDecimal, val currency: Currency) : Comparable {
+
+ override fun compareTo(other: Money): Int =
+ convert(Currency.DOLLARS).compareTo(other.convert(Currency.DOLLARS))
+
+ fun convert(currency: Currency): BigDecimal = TODO()
+
+ override fun equals(other: Any?): Boolean {
+ if (this === other) return true
+ if (other !is Money) return false
+
+ if (amount != other.amount) return false
+ if (currency != other.currency) return false
+
+ return true
+ }
+
+ override fun hashCode(): Int {
+ var result = amount.hashCode()
+ result = 31 * result + currency.hashCode()
+ return result
+ }
+}
\ No newline at end of file
diff --git a/core-kotlin/src/main/kotlin/com/baeldung/operators/Page.kt b/core-kotlin/src/main/kotlin/com/baeldung/operators/Page.kt
new file mode 100644
index 0000000000..1077eb94f9
--- /dev/null
+++ b/core-kotlin/src/main/kotlin/com/baeldung/operators/Page.kt
@@ -0,0 +1,16 @@
+package com.baeldung.operators
+
+interface Page {
+ fun pageNumber(): Int
+ fun pageSize(): Int
+ fun elements(): MutableList
+}
+
+operator fun Page.get(index: Int): T = elements()[index]
+operator fun Page.get(start: Int, endExclusive: Int): List = elements().subList(start, endExclusive)
+operator fun Page.set(index: Int, value: T) {
+ elements()[index] = value
+}
+
+operator fun Page.contains(element: T): Boolean = element in elements()
+operator fun Page.iterator() = elements().iterator()
\ No newline at end of file
diff --git a/core-kotlin/src/main/kotlin/com/baeldung/operators/Point.kt b/core-kotlin/src/main/kotlin/com/baeldung/operators/Point.kt
new file mode 100644
index 0000000000..e3282e64cc
--- /dev/null
+++ b/core-kotlin/src/main/kotlin/com/baeldung/operators/Point.kt
@@ -0,0 +1,31 @@
+package com.baeldung.operators
+
+data class Point(val x: Int, val y: Int)
+
+operator fun Point.unaryMinus() = Point(-x, -y)
+operator fun Point.not() = Point(y, x)
+operator fun Point.inc() = Point(x + 1, y + 1)
+operator fun Point.dec() = Point(x - 1, y - 1)
+
+operator fun Point.plus(other: Point): Point = Point(x + other.x, y + other.y)
+operator fun Point.minus(other: Point): Point = Point(x - other.x, y - other.y)
+operator fun Point.times(other: Point): Point = Point(x * other.x, y * other.y)
+operator fun Point.div(other: Point): Point = Point(x / other.x, y / other.y)
+operator fun Point.rem(other: Point): Point = Point(x % other.x, y % other.y)
+operator fun Point.times(factor: Int): Point = Point(x * factor, y * factor)
+operator fun Int.times(point: Point): Point = Point(point.x * this, point.y * this)
+
+class Shape {
+ val points = mutableListOf()
+
+ operator fun Point.unaryPlus() {
+ points.add(this)
+ }
+}
+
+fun shape(init: Shape.() -> Unit): Shape {
+ val shape = Shape()
+ shape.init()
+
+ return shape
+}
\ No newline at end of file
diff --git a/core-kotlin/src/main/kotlin/com/baeldung/operators/Utils.kt b/core-kotlin/src/main/kotlin/com/baeldung/operators/Utils.kt
new file mode 100644
index 0000000000..0f16544f38
--- /dev/null
+++ b/core-kotlin/src/main/kotlin/com/baeldung/operators/Utils.kt
@@ -0,0 +1,8 @@
+package com.baeldung.operators
+
+import java.math.BigInteger
+
+operator fun MutableCollection.plusAssign(element: T) {
+ add(element)
+}
+operator fun BigInteger.plus(other: Int): BigInteger = add(BigInteger("$other"))
\ No newline at end of file
diff --git a/core-kotlin/src/test/kotlin/com/baeldung/operators/PageTest.kt b/core-kotlin/src/test/kotlin/com/baeldung/operators/PageTest.kt
new file mode 100644
index 0000000000..4217fc0c08
--- /dev/null
+++ b/core-kotlin/src/test/kotlin/com/baeldung/operators/PageTest.kt
@@ -0,0 +1,28 @@
+package com.baeldung.operators
+
+import org.junit.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertTrue
+
+class PageTest {
+
+ private val page = PageImpl(1, 10, "Java", "Kotlin", "Scala")
+
+ @Test
+ fun `Get convention should work as expected`() {
+ assertEquals(page[1], "Kotlin")
+ assertEquals(page[1, 3], listOf("Kotlin", "Scala"))
+ }
+
+ @Test
+ fun `In convention should work on a page as expected`() {
+ assertTrue("Kotlin" in page)
+ }
+
+}
+
+private class PageImpl(val page: Int, val size: Int, vararg val elements: T) : Page {
+ override fun pageNumber(): Int = page
+ override fun pageSize(): Int = size
+ override fun elements(): MutableList = mutableListOf(*elements)
+}
\ No newline at end of file
diff --git a/core-kotlin/src/test/kotlin/com/baeldung/operators/PointTest.kt b/core-kotlin/src/test/kotlin/com/baeldung/operators/PointTest.kt
new file mode 100644
index 0000000000..168ab6431d
--- /dev/null
+++ b/core-kotlin/src/test/kotlin/com/baeldung/operators/PointTest.kt
@@ -0,0 +1,48 @@
+package com.baeldung.operators
+
+import org.junit.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertTrue
+
+class PointTest {
+
+ private val p1 = Point(1, 2)
+ private val p2 = Point(2, 3)
+
+ @Test
+ fun `We should be able to add two points together using +`() {
+ assertEquals(p1 + p2, Point(3, 5))
+ }
+
+ @Test
+ fun `We shoud be able to subtract one point from another using -`() {
+ assertEquals(p1 - p2, Point(-1, -1))
+ }
+
+ @Test
+ fun `We should be able to multiply two points together with *`() {
+ assertEquals(p1 * p2, Point(2, 6))
+ }
+
+ @Test
+ fun `We should be able to divide one point by another`() {
+ assertEquals(p1 / p2, Point(0, 0))
+ }
+
+ @Test
+ fun `We should be able to scale a point by an integral factor`() {
+ assertEquals(p1 * 2, Point(2, 4))
+ assertEquals(2 * p1, Point(2, 4))
+ }
+
+ @Test
+ fun `We should be able to add points to an empty shape`() {
+ val line = shape {
+ +Point(0, 0)
+ +Point(1, 3)
+ }
+
+ assertTrue(Point(0, 0) in line.points)
+ assertTrue(Point(1, 3) in line.points)
+ }
+}
\ No newline at end of file
diff --git a/core-kotlin/src/test/kotlin/com/baeldung/operators/UtilsTest.kt b/core-kotlin/src/test/kotlin/com/baeldung/operators/UtilsTest.kt
new file mode 100644
index 0000000000..4abe962cb5
--- /dev/null
+++ b/core-kotlin/src/test/kotlin/com/baeldung/operators/UtilsTest.kt
@@ -0,0 +1,13 @@
+package com.baeldung.operators
+
+import java.math.BigInteger
+import org.junit.Test
+import kotlin.test.assertEquals
+
+class UtilsTest {
+
+ @Test
+ fun `We should be able to add an int value to an existing BigInteger using +`() {
+ assertEquals(BigInteger.ZERO + 1, BigInteger.ONE)
+ }
+}
\ No newline at end of file
diff --git a/core-scala/pom.xml b/core-scala/pom.xml
index eb7c1c3330..343f21484a 100644
--- a/core-scala/pom.xml
+++ b/core-scala/pom.xml
@@ -4,6 +4,7 @@
4.0.0
core-scala
1.0-SNAPSHOT
+ core-scala
jar
diff --git a/data-structures/pom.xml b/data-structures/pom.xml
index c1a1f1d371..4958598234 100644
--- a/data-structures/pom.xml
+++ b/data-structures/pom.xml
@@ -1,9 +1,9 @@
4.0.0
- com.baeldung
data-structures
0.0.1-SNAPSHOT
+ data-structures
com.baeldung
diff --git a/drools/pom.xml b/drools/pom.xml
index 009ac8acec..b5cfc7d6dc 100644
--- a/drools/pom.xml
+++ b/drools/pom.xml
@@ -3,7 +3,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
drools
-
+ drools
+
com.baeldung
parent-spring-4
diff --git a/dubbo/pom.xml b/dubbo/pom.xml
index 6f81ec5cff..9fe228bf89 100644
--- a/dubbo/pom.xml
+++ b/dubbo/pom.xml
@@ -2,6 +2,7 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
dubbo
+ dubbo
parent-modules
diff --git a/flyway-cdi-extension/pom.xml b/flyway-cdi-extension/pom.xml
index c6ee26f783..dbb32f1e5a 100644
--- a/flyway-cdi-extension/pom.xml
+++ b/flyway-cdi-extension/pom.xml
@@ -3,10 +3,10 @@
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
-
com.baeldung
flyway-cdi-extension
1.0-SNAPSHOT
+ flyway-cdi-extension
1.8
diff --git a/grpc/pom.xml b/grpc/pom.xml
index 949f26d376..725bec3e70 100644
--- a/grpc/pom.xml
+++ b/grpc/pom.xml
@@ -71,9 +71,8 @@
- 1.5.0
- 1.5.0.Final
- 0.5.0
+ 1.16.1
+ 1.6.1
+ 0.6.1
-
diff --git a/grpc/src/main/java/org/baeldung/grpc/client/GrpcClient.java b/grpc/src/main/java/org/baeldung/grpc/client/GrpcClient.java
index 1a1809387f..f653e17910 100644
--- a/grpc/src/main/java/org/baeldung/grpc/client/GrpcClient.java
+++ b/grpc/src/main/java/org/baeldung/grpc/client/GrpcClient.java
@@ -10,7 +10,7 @@ import io.grpc.ManagedChannelBuilder;
public class GrpcClient {
public static void main(String[] args) throws InterruptedException {
ManagedChannel channel = ManagedChannelBuilder.forAddress("localhost", 8080)
- .usePlaintext(true)
+ .usePlaintext()
.build();
HelloServiceGrpc.HelloServiceBlockingStub stub
diff --git a/guava-collections/src/test/java/org/baeldung/guava/GuavaRangeMapUnitTest.java b/guava-collections/src/test/java/org/baeldung/guava/GuavaRangeMapUnitTest.java
index 81ba72373c..c0c5efea23 100644
--- a/guava-collections/src/test/java/org/baeldung/guava/GuavaRangeMapUnitTest.java
+++ b/guava-collections/src/test/java/org/baeldung/guava/GuavaRangeMapUnitTest.java
@@ -2,6 +2,9 @@ package org.baeldung.guava;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+import java.util.Arrays;
import java.util.Map;
import org.junit.Test;
import com.google.common.collect.ImmutableRangeMap;
@@ -98,8 +101,9 @@ public class GuavaRangeMapUnitTest {
final RangeMap experiencedSubRangeDesignationMap = experienceRangeDesignationMap.subRangeMap(Range.closed(4, 14));
assertNull(experiencedSubRangeDesignationMap.get(3));
- assertEquals("Executive Director", experiencedSubRangeDesignationMap.get(14));
- assertEquals("Vice President", experiencedSubRangeDesignationMap.get(7));
+ assertTrue(experiencedSubRangeDesignationMap.asMapOfRanges().values()
+ .containsAll(Arrays.asList("Executive Director", "Vice President", "Executive Director")));
+
}
@Test
diff --git a/guava-modules/guava-18/pom.xml b/guava-modules/guava-18/pom.xml
index ce9395fbf4..d55aa9ce82 100644
--- a/guava-modules/guava-18/pom.xml
+++ b/guava-modules/guava-18/pom.xml
@@ -2,10 +2,10 @@
4.0.0
- com.baeldung
guava-18
0.1.0-SNAPSHOT
-
+ guava-18
+
com.baeldung
parent-java
diff --git a/guava-modules/guava-19/pom.xml b/guava-modules/guava-19/pom.xml
index 5dfb4d2cec..0548bb0c1f 100644
--- a/guava-modules/guava-19/pom.xml
+++ b/guava-modules/guava-19/pom.xml
@@ -2,10 +2,10 @@
4.0.0
- com.baeldung
guava-19
0.1.0-SNAPSHOT
-
+ guava-19
+
com.baeldung
parent-java
diff --git a/guava-modules/guava-21/pom.xml b/guava-modules/guava-21/pom.xml
index 945b7c27c1..bdb1058a48 100644
--- a/guava-modules/guava-21/pom.xml
+++ b/guava-modules/guava-21/pom.xml
@@ -4,7 +4,8 @@
4.0.0
guava-21
1.0-SNAPSHOT
-
+ guava-21
+
com.baeldung
parent-java
diff --git a/guest/core-java-9/pom.xml b/guest/core-java-9/pom.xml
index e9271b42ff..3847c19d16 100644
--- a/guest/core-java-9/pom.xml
+++ b/guest/core-java-9/pom.xml
@@ -4,7 +4,8 @@
com.stackify
core-java-9
0.0.1-SNAPSHOT
-
+ core-java-9
+
com.baeldung
parent-modules
diff --git a/guest/core-java/pom.xml b/guest/core-java/pom.xml
index 787dd764a1..5057f7eaed 100644
--- a/guest/core-java/pom.xml
+++ b/guest/core-java/pom.xml
@@ -4,6 +4,7 @@
com.stackify
core-java
0.0.1-SNAPSHOT
+ core-java
com.baeldung
diff --git a/guest/core-kotlin/pom.xml b/guest/core-kotlin/pom.xml
index 6b189143a4..a57dd28ffd 100644
--- a/guest/core-kotlin/pom.xml
+++ b/guest/core-kotlin/pom.xml
@@ -6,7 +6,8 @@
1.0-SNAPSHOT
com.stackify
jar
-
+ core-kotlin
+
jcenter
diff --git a/guest/deep-jsf/pom.xml b/guest/deep-jsf/pom.xml
index e09b5e0606..12426a8833 100644
--- a/guest/deep-jsf/pom.xml
+++ b/guest/deep-jsf/pom.xml
@@ -4,6 +4,7 @@
com.stackify
deep-jsf
0.0.1-SNAPSHOT
+ deep-jsf
war
diff --git a/guest/junit5-example/pom.xml b/guest/junit5-example/pom.xml
index 457fb1fcaa..7c0cc3e776 100644
--- a/guest/junit5-example/pom.xml
+++ b/guest/junit5-example/pom.xml
@@ -4,7 +4,8 @@
junit5-example
junit5-example
0.0.1-SNAPSHOT
-
+ junit5-example
+
com.baeldung
parent-modules
diff --git a/guest/log4j2-example/pom.xml b/guest/log4j2-example/pom.xml
index f64869879f..ab55e0b60e 100644
--- a/guest/log4j2-example/pom.xml
+++ b/guest/log4j2-example/pom.xml
@@ -4,7 +4,8 @@
log4j2-example
log4j2-example
0.0.1-SNAPSHOT
-
+ log4j2-example
+
com.baeldung
parent-modules
diff --git a/guest/logback-example/pom.xml b/guest/logback-example/pom.xml
index 04de6a00a2..6e9fe0ddea 100644
--- a/guest/logback-example/pom.xml
+++ b/guest/logback-example/pom.xml
@@ -4,6 +4,7 @@
com.stackify
logback-example
0.0.1-SNAPSHOT
+ logback-example
com.baeldung
diff --git a/guest/memory-leaks/pom.xml b/guest/memory-leaks/pom.xml
index 956ae9c408..f1d411acbc 100644
--- a/guest/memory-leaks/pom.xml
+++ b/guest/memory-leaks/pom.xml
@@ -1,10 +1,10 @@
4.0.0
- com.baeldung
memory-leaks
0.0.1-SNAPSHOT
-
+ memory-leaks
+
com.baeldung
parent-modules
diff --git a/guest/remote-debugging/pom.xml b/guest/remote-debugging/pom.xml
index 974421de97..07b9cc49d8 100644
--- a/guest/remote-debugging/pom.xml
+++ b/guest/remote-debugging/pom.xml
@@ -5,8 +5,8 @@
com.stackify
remote-debugging
0.0.1-SNAPSHOT
+ remote-debugging
war
- remote-debugging
org.springframework.boot
diff --git a/guest/slf4j/guide/pom.xml b/guest/slf4j/guide/pom.xml
index 0db9b46247..657ede73b6 100644
--- a/guest/slf4j/guide/pom.xml
+++ b/guest/slf4j/guide/pom.xml
@@ -2,13 +2,12 @@
4.0.0
-
com.stackify.slf4j.guide
slf4j-parent-module
1.0.0-SNAPSHOT
+ slf4j-parent-module
pom
-
org.springframework.boot
spring-boot-starter-parent
diff --git a/guest/slf4j/guide/slf4j-log4j/pom.xml b/guest/slf4j/guide/slf4j-log4j/pom.xml
index 0d08fa6191..bca5392f4d 100644
--- a/guest/slf4j/guide/slf4j-log4j/pom.xml
+++ b/guest/slf4j/guide/slf4j-log4j/pom.xml
@@ -2,9 +2,9 @@
4.0.0
-
slf4j-log4j
0.0.1-SNAPSHOT
+ slf4j-log4j
jar
diff --git a/guest/slf4j/guide/slf4j-log4j2/pom.xml b/guest/slf4j/guide/slf4j-log4j2/pom.xml
index 643649335f..9473362cb8 100644
--- a/guest/slf4j/guide/slf4j-log4j2/pom.xml
+++ b/guest/slf4j/guide/slf4j-log4j2/pom.xml
@@ -2,9 +2,9 @@
4.0.0
-
slf4j-log4j2
0.0.1-SNAPSHOT
+ slf4j-log4j2
jar
diff --git a/guest/slf4j/guide/slf4j-logback/pom.xml b/guest/slf4j/guide/slf4j-logback/pom.xml
index e8aebf0ef6..0327e79732 100644
--- a/guest/slf4j/guide/slf4j-logback/pom.xml
+++ b/guest/slf4j/guide/slf4j-logback/pom.xml
@@ -2,9 +2,9 @@
4.0.0
-
slf4j-logback
0.0.1-SNAPSHOT
+ slf4j-logback
jar
diff --git a/guest/spring-boot-app/pom.xml b/guest/spring-boot-app/pom.xml
index 7daa8f668e..423dadbb99 100644
--- a/guest/spring-boot-app/pom.xml
+++ b/guest/spring-boot-app/pom.xml
@@ -4,6 +4,7 @@
spring-boot-app
spring-boot-app
0.0.1-SNAPSHOT
+ spring-boot-app
war
diff --git a/guest/spring-mvc/pom.xml b/guest/spring-mvc/pom.xml
index c0ef451605..3bffb1530d 100644
--- a/guest/spring-mvc/pom.xml
+++ b/guest/spring-mvc/pom.xml
@@ -5,8 +5,8 @@
com.stackify.guest
spring-mvc
0.0.1-SNAPSHOT
- jar
spring-mvc
+ jar
Spring MVC sample project
diff --git a/guest/thread-pools/pom.xml b/guest/thread-pools/pom.xml
index db9a5ac89f..2591cb2746 100644
--- a/guest/thread-pools/pom.xml
+++ b/guest/thread-pools/pom.xml
@@ -4,7 +4,8 @@
com.stackify
thread-pools
0.0.1-SNAPSHOT
-
+ thread-pools
+
com.baeldung
parent-modules
diff --git a/guest/tomcat-app/pom.xml b/guest/tomcat-app/pom.xml
index 7fd27e869b..9ce77c758a 100644
--- a/guest/tomcat-app/pom.xml
+++ b/guest/tomcat-app/pom.xml
@@ -4,6 +4,7 @@
com.stackify
tomcat-app
0.0.1-SNAPSHOT
+ tomcat-app
war
diff --git a/guest/webservices/rest-client/pom.xml b/guest/webservices/rest-client/pom.xml
index 5e52b7161c..8508186e86 100644
--- a/guest/webservices/rest-client/pom.xml
+++ b/guest/webservices/rest-client/pom.xml
@@ -3,6 +3,7 @@
com.stackify
rest-client
0.0.1-SNAPSHOT
+ rest-client
war
diff --git a/guest/webservices/rest-server/pom.xml b/guest/webservices/rest-server/pom.xml
index 4b3d241293..c576924215 100644
--- a/guest/webservices/rest-server/pom.xml
+++ b/guest/webservices/rest-server/pom.xml
@@ -4,6 +4,7 @@
com.stackify
rest-server
0.0.1-SNAPSHOT
+ rest-server
war
diff --git a/guest/webservices/spring-rest-service/pom.xml b/guest/webservices/spring-rest-service/pom.xml
index 49d35766e8..fcec8a3e12 100644
--- a/guest/webservices/spring-rest-service/pom.xml
+++ b/guest/webservices/spring-rest-service/pom.xml
@@ -4,6 +4,7 @@
com.stackify
spring-rest-service
0.0.1-SNAPSHOT
+ spring-rest-service
war
diff --git a/helidon/helidon-mp/pom.xml b/helidon/helidon-mp/pom.xml
index 1ec1131a67..1f39431886 100644
--- a/helidon/helidon-mp/pom.xml
+++ b/helidon/helidon-mp/pom.xml
@@ -2,9 +2,9 @@
4.0.0
-
helidon-mp
-
+ helidon-mp
+
com.baeldung.helidon
helidon
diff --git a/helidon/helidon-se/pom.xml b/helidon/helidon-se/pom.xml
index 5e14ecb81c..8982bf048e 100644
--- a/helidon/helidon-se/pom.xml
+++ b/helidon/helidon-se/pom.xml
@@ -3,9 +3,9 @@
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
-
helidon-se
-
+ helidon-se
+
com.baeldung.helidon
helidon
diff --git a/helidon/pom.xml b/helidon/pom.xml
index ea8cc52ee0..85bab4db42 100644
--- a/helidon/pom.xml
+++ b/helidon/pom.xml
@@ -2,10 +2,9 @@
4.0.0
-
com.baeldung.helidon
helidon
- 1.0.0-SNAPSHOT
+ helidon
pom
diff --git a/hibernate5/src/main/java/com/baeldung/hibernate/entities/DeptEmployee.java b/hibernate5/src/main/java/com/baeldung/hibernate/entities/DeptEmployee.java
new file mode 100644
index 0000000000..7813e89a48
--- /dev/null
+++ b/hibernate5/src/main/java/com/baeldung/hibernate/entities/DeptEmployee.java
@@ -0,0 +1,75 @@
+package com.baeldung.hibernate.entities;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.ManyToOne;
+
+@org.hibernate.annotations.NamedQueries({ @org.hibernate.annotations.NamedQuery(name = "DeptEmployee_FindByEmployeeNumber", query = "from DeptEmployee where employeeNumber = :employeeNo"),
+ @org.hibernate.annotations.NamedQuery(name = "DeptEmployee_FindAllByDesgination", query = "from DeptEmployee where designation = :designation"),
+ @org.hibernate.annotations.NamedQuery(name = "DeptEmployee_UpdateEmployeeDepartment", query = "Update DeptEmployee set department = :newDepartment where employeeNumber = :employeeNo"),
+ @org.hibernate.annotations.NamedQuery(name = "DeptEmployee_FindAllByDepartment", query = "from DeptEmployee where department = :department", timeout = 1, fetchSize = 10) })
+@org.hibernate.annotations.NamedNativeQueries({ @org.hibernate.annotations.NamedNativeQuery(name = "DeptEmployee_FindByEmployeeName", query = "select * from deptemployee emp where name=:name", resultClass = DeptEmployee.class),
+ @org.hibernate.annotations.NamedNativeQuery(name = "DeptEmployee_UpdateEmployeeDesignation", query = "call UPDATE_EMPLOYEE_DESIGNATION(:employeeNumber, :newDesignation)", resultClass = DeptEmployee.class) })
+@Entity
+public class DeptEmployee {
+ @Id
+ @GeneratedValue(strategy = GenerationType.SEQUENCE)
+ private long id;
+
+ private String employeeNumber;
+
+ private String designation;
+
+ private String name;
+
+ @ManyToOne
+ private Department department;
+
+ public DeptEmployee(String name, String employeeNumber, Department department) {
+ this.name = name;
+ this.employeeNumber = employeeNumber;
+ this.department = department;
+ }
+
+ public long getId() {
+ return id;
+ }
+
+ public void setId(long id) {
+ this.id = id;
+ }
+
+ public String getEmployeeNumber() {
+ return employeeNumber;
+ }
+
+ public void setEmployeeNumber(String employeeNumber) {
+ this.employeeNumber = employeeNumber;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public void setName(String name) {
+ this.name = name;
+ }
+
+ public Department getDepartment() {
+ return department;
+ }
+
+ public void setDepartment(Department department) {
+ this.department = department;
+ }
+
+ public String getDesignation() {
+ return designation;
+ }
+
+ public void setDesignation(String designation) {
+ this.designation = designation;
+ }
+}
diff --git a/hibernate5/src/main/resources/init_database.sql b/hibernate5/src/main/resources/init_database.sql
new file mode 100644
index 0000000000..154a5a0bc0
--- /dev/null
+++ b/hibernate5/src/main/resources/init_database.sql
@@ -0,0 +1,10 @@
+CREATE ALIAS UPDATE_EMPLOYEE_DESIGNATION AS $$
+import java.sql.CallableStatement;
+import java.sql.Connection;
+import java.sql.SQLException;
+@CODE
+void updateEmployeeDesignation(final Connection conn, final String employeeNumber, final String designation) throws SQLException {
+ CallableStatement updateStatement = conn.prepareCall("update deptemployee set designation = '" + designation + "' where employeeNumber = '" + employeeNumber + "'");
+ updateStatement.execute();
+}
+$$;
\ No newline at end of file
diff --git a/hibernate5/src/test/java/com/baeldung/hibernate/NamedQueryIntegrationTest.java b/hibernate5/src/test/java/com/baeldung/hibernate/NamedQueryIntegrationTest.java
new file mode 100644
index 0000000000..ef6ec89bc4
--- /dev/null
+++ b/hibernate5/src/test/java/com/baeldung/hibernate/NamedQueryIntegrationTest.java
@@ -0,0 +1,103 @@
+package com.baeldung.hibernate;
+
+import java.io.IOException;
+
+import org.hibernate.Session;
+import org.hibernate.Transaction;
+import org.hibernate.query.NativeQuery;
+import org.hibernate.query.Query;
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import com.baeldung.hibernate.entities.Department;
+import com.baeldung.hibernate.entities.DeptEmployee;
+
+public class NamedQueryIntegrationTest {
+ private static Session session;
+
+ private Transaction transaction;
+
+ private Long purchaseDeptId;
+
+ @BeforeClass
+ public static void setUpClass() throws IOException {
+ session = HibernateUtil.getSessionFactory("hibernate-namedquery.properties").openSession();
+ }
+
+ @Before
+ public void setUp() throws IOException {
+ transaction = session.beginTransaction();
+ session.createNativeQuery("delete from deptemployee").executeUpdate();
+ session.createNativeQuery("delete from department").executeUpdate();
+ Department salesDepartment = new Department("Sales");
+ Department purchaseDepartment = new Department("Purchase");
+ DeptEmployee employee1 = new DeptEmployee("John Wayne", "001", salesDepartment);
+ DeptEmployee employee2 = new DeptEmployee("Sarah Vinton", "002", salesDepartment);
+ DeptEmployee employee3 = new DeptEmployee("Lisa Carter", "003", salesDepartment);
+ session.persist(salesDepartment);
+ session.persist(purchaseDepartment);
+ purchaseDeptId = purchaseDepartment.getId();
+ session.persist(employee1);
+ session.persist(employee2);
+ session.persist(employee3);
+ transaction.commit();
+ transaction = session.beginTransaction();
+ }
+
+ @After
+ public void tearDown() {
+ if(transaction.isActive()) {
+ transaction.rollback();
+ }
+ }
+
+ @Test
+ public void whenNamedQueryIsCalledUsingCreateNamedQuery_ThenOk() {
+ Query query = session.createNamedQuery("DeptEmployee_FindByEmployeeNumber", DeptEmployee.class);
+ query.setParameter("employeeNo", "001");
+ DeptEmployee result = query.getSingleResult();
+ Assert.assertNotNull(result);
+ Assert.assertEquals("John Wayne", result.getName());
+ }
+
+ @Test
+ public void whenNamedNativeQueryIsCalledUsingCreateNamedQuery_ThenOk() {
+ Query query = session.createNamedQuery("DeptEmployee_FindByEmployeeName", DeptEmployee.class);
+ query.setParameter("name", "John Wayne");
+ DeptEmployee result = query.getSingleResult();
+ Assert.assertNotNull(result);
+ Assert.assertEquals("001", result.getEmployeeNumber());
+ }
+
+ @Test
+ public void whenNamedNativeQueryIsCalledUsingGetNamedNativeQuery_ThenOk() {
+ @SuppressWarnings("rawtypes")
+ NativeQuery query = session.getNamedNativeQuery("DeptEmployee_FindByEmployeeName");
+ query.setParameter("name", "John Wayne");
+ DeptEmployee result = (DeptEmployee) query.getSingleResult();
+ Assert.assertNotNull(result);
+ Assert.assertEquals("001", result.getEmployeeNumber());
+ }
+
+ @Test
+ public void whenUpdateQueryIsCalledWithCreateNamedQuery_ThenOk() {
+ Query spQuery = session.createNamedQuery("DeptEmployee_UpdateEmployeeDepartment");
+ spQuery.setParameter("employeeNo", "001");
+ Department newDepartment = session.find(Department.class, purchaseDeptId);
+ spQuery.setParameter("newDepartment", newDepartment);
+ spQuery.executeUpdate();
+ transaction.commit();
+ }
+
+ @Test
+ public void whenNamedStoredProcedureIsCalledWithCreateNamedQuery_ThenOk() {
+ Query spQuery = session.createNamedQuery("DeptEmployee_UpdateEmployeeDesignation");
+ spQuery.setParameter("employeeNumber", "002");
+ spQuery.setParameter("newDesignation", "Supervisor");
+ spQuery.executeUpdate();
+ transaction.commit();
+ }
+}
diff --git a/hibernate5/src/test/resources/hibernate-namedquery.properties b/hibernate5/src/test/resources/hibernate-namedquery.properties
new file mode 100644
index 0000000000..457f965347
--- /dev/null
+++ b/hibernate5/src/test/resources/hibernate-namedquery.properties
@@ -0,0 +1,9 @@
+hibernate.connection.driver_class=org.h2.Driver
+hibernate.connection.url=jdbc:h2:mem:mydb1;DB_CLOSE_DELAY=-1;INIT=RUNSCRIPT FROM 'src/main/resources/init_database.sql'
+hibernate.connection.username=sa
+hibernate.connection.autocommit=true
+jdbc.password=
+
+hibernate.dialect=org.hibernate.dialect.H2Dialect
+hibernate.show_sql=true
+hibernate.hbm2ddl.auto=create-drop
\ No newline at end of file
diff --git a/image-processing/pom.xml b/image-processing/pom.xml
index fe8001ae3a..ce75145dc7 100644
--- a/image-processing/pom.xml
+++ b/image-processing/pom.xml
@@ -2,10 +2,10 @@
4.0.0
- com.baeldung
image-processing
1.0-SNAPSHOT
-
+ image-processing
+
com.baeldung
parent-modules
diff --git a/immutables/pom.xml b/immutables/pom.xml
index 17510690b0..efb21e584a 100644
--- a/immutables/pom.xml
+++ b/immutables/pom.xml
@@ -3,8 +3,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
immutables
- 1.0.0-SNAPSHOT
-
+ immutables
+
com.baeldung
parent-modules
diff --git a/java-collections-conversions/README.md b/java-collections-conversions/README.md
index 761a78d7b0..0f89e07d63 100644
--- a/java-collections-conversions/README.md
+++ b/java-collections-conversions/README.md
@@ -8,4 +8,5 @@
- [Converting between a List and a Set in Java](http://www.baeldung.com/convert-list-to-set-and-set-to-list)
- [Convert a Map to an Array, List or Set in Java](http://www.baeldung.com/convert-map-values-to-array-list-set)
- [Converting a List to String in Java](http://www.baeldung.com/java-list-to-string)
-- [How to Convert List to Map in Java](http://www.baeldung.com/java-list-to-map)
\ No newline at end of file
+- [How to Convert List to Map in Java](http://www.baeldung.com/java-list-to-map)
+- [Array to String Conversions](https://www.baeldung.com/java-array-to-string)
diff --git a/java-collections-conversions/src/test/java/org/baeldung/convertarraytostring/ArrayToStringUnitTest.java b/java-collections-conversions/src/test/java/org/baeldung/convertarraytostring/ArrayToStringUnitTest.java
new file mode 100644
index 0000000000..b563475997
--- /dev/null
+++ b/java-collections-conversions/src/test/java/org/baeldung/convertarraytostring/ArrayToStringUnitTest.java
@@ -0,0 +1,136 @@
+package org.baeldung.convertarraytostring;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import org.apache.commons.lang3.StringUtils;
+import org.junit.Test;
+
+import com.google.common.base.Joiner;
+import com.google.common.base.Splitter;
+
+import static org.hamcrest.CoreMatchers.instanceOf;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.Assert.assertEquals;
+
+public class ArrayToStringUnitTest {
+
+ // convert with Java
+
+ @Test
+ public void givenAStringArray_whenConvertBeforeJava8_thenReturnString() {
+
+ String[] strArray = { "Convert", "Array", "With", "Java" };
+ StringBuilder stringBuilder = new StringBuilder();
+
+ for (int i = 0; i < strArray.length; i++) {
+ stringBuilder.append(strArray[i]);
+ }
+ String joinedString = stringBuilder.toString();
+
+ assertThat(joinedString, instanceOf(String.class));
+ assertEquals("ConvertArrayWithJava", joinedString);
+ }
+
+ @Test
+ public void givenAString_whenConvertBeforeJava8_thenReturnStringArray() {
+
+ String input = "lorem ipsum dolor sit amet";
+ String[] strArray = input.split(" ");
+
+ assertThat(strArray, instanceOf(String[].class));
+ assertEquals(5, strArray.length);
+
+ input = "loremipsum";
+ strArray = input.split("");
+ assertThat(strArray, instanceOf(String[].class));
+ assertEquals(10, strArray.length);
+ }
+
+ @Test
+ public void givenAnIntArray_whenConvertBeforeJava8_thenReturnString() {
+
+ int[] strArray = { 1, 2, 3, 4, 5 };
+ StringBuilder stringBuilder = new StringBuilder();
+
+ for (int i = 0; i < strArray.length; i++) {
+ stringBuilder.append(Integer.valueOf(strArray[i]));
+ }
+ String joinedString = stringBuilder.toString();
+
+ assertThat(joinedString, instanceOf(String.class));
+ assertEquals("12345", joinedString);
+ }
+
+ // convert with Java Stream API
+
+ @Test
+ public void givenAStringArray_whenConvertWithJavaStream_thenReturnString() {
+
+ String[] strArray = { "Convert", "With", "Java", "Streams" };
+ String joinedString = Arrays.stream(strArray)
+ .collect(Collectors.joining());
+ assertThat(joinedString, instanceOf(String.class));
+ assertEquals("ConvertWithJavaStreams", joinedString);
+
+ joinedString = Arrays.stream(strArray)
+ .collect(Collectors.joining(","));
+ assertThat(joinedString, instanceOf(String.class));
+ assertEquals("Convert,With,Java,Streams", joinedString);
+ }
+
+
+ // convert with Apache Commons
+
+ @Test
+ public void givenAStringArray_whenConvertWithApacheCommons_thenReturnString() {
+
+ String[] strArray = { "Convert", "With", "Apache", "Commons" };
+ String joinedString = StringUtils.join(strArray);
+
+ assertThat(joinedString, instanceOf(String.class));
+ assertEquals("ConvertWithApacheCommons", joinedString);
+ }
+
+ @Test
+ public void givenAString_whenConvertWithApacheCommons_thenReturnStringArray() {
+
+ String input = "lorem ipsum dolor sit amet";
+ String[] strArray = StringUtils.split(input, " ");
+
+ assertThat(strArray, instanceOf(String[].class));
+ assertEquals(5, strArray.length);
+ }
+
+
+ // convert with Guava
+
+ @Test
+ public void givenAStringArray_whenConvertWithGuava_thenReturnString() {
+
+ String[] strArray = { "Convert", "With", "Guava", null };
+ String joinedString = Joiner.on("")
+ .skipNulls()
+ .join(strArray);
+
+ assertThat(joinedString, instanceOf(String.class));
+ assertEquals("ConvertWithGuava", joinedString);
+ }
+
+
+ @Test
+ public void givenAString_whenConvertWithGuava_thenReturnStringArray() {
+
+ String input = "lorem ipsum dolor sit amet";
+
+ List resultList = Splitter.on(' ')
+ .trimResults()
+ .omitEmptyStrings()
+ .splitToList(input);
+ String[] strArray = resultList.toArray(new String[0]);
+
+ assertThat(strArray, instanceOf(String[].class));
+ assertEquals(5, strArray.length);
+ }
+}
diff --git a/java-collections-maps/src/test/java/com/baeldung/java/map/ImmutableMapUnitTest.java b/java-collections-maps/src/test/java/com/baeldung/java/map/ImmutableMapUnitTest.java
new file mode 100644
index 0000000000..b239ae07d8
--- /dev/null
+++ b/java-collections-maps/src/test/java/com/baeldung/java/map/ImmutableMapUnitTest.java
@@ -0,0 +1,87 @@
+package com.baeldung.java.map;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.junit.jupiter.api.Test;
+
+import com.google.common.collect.ImmutableMap;
+
+
+public class ImmutableMapUnitTest {
+
+ @Test
+ public void whenCollectionsUnModifiableMapMethod_thenOriginalCollectionChangesReflectInUnmodifiableMap() {
+
+ Map mutableMap = new HashMap<>();
+ mutableMap.put("USA", "North America");
+
+ Map unmodifiableMap = Collections.unmodifiableMap(mutableMap);
+ assertThrows(UnsupportedOperationException.class, () -> unmodifiableMap.put("Canada", "North America"));
+
+ mutableMap.remove("USA");
+ assertFalse(unmodifiableMap.containsKey("USA"));
+
+ mutableMap.put("Mexico", "North America");
+ assertTrue(unmodifiableMap.containsKey("Mexico"));
+ }
+
+ @Test
+ @SuppressWarnings("deprecation")
+ public void whenGuavaImmutableMapFromCopyOfMethod_thenOriginalCollectionChangesDoNotReflectInImmutableMap() {
+
+ Map mutableMap = new HashMap<>();
+ mutableMap.put("USA", "North America");
+
+ ImmutableMap immutableMap = ImmutableMap.copyOf(mutableMap);
+ assertTrue(immutableMap.containsKey("USA"));
+
+ assertThrows(UnsupportedOperationException.class, () -> immutableMap.put("Canada", "North America"));
+
+ mutableMap.remove("USA");
+ assertTrue(immutableMap.containsKey("USA"));
+
+ mutableMap.put("Mexico", "North America");
+ assertFalse(immutableMap.containsKey("Mexico"));
+ }
+
+ @Test
+ @SuppressWarnings("deprecation")
+ public void whenGuavaImmutableMapFromBuilderMethod_thenOriginalCollectionChangesDoNotReflectInImmutableMap() {
+
+ Map mutableMap = new HashMap<>();
+ mutableMap.put("USA", "North America");
+
+ ImmutableMap immutableMap = ImmutableMap.builder()
+ .putAll(mutableMap)
+ .put("Costa Rica", "North America")
+ .build();
+ assertTrue(immutableMap.containsKey("USA"));
+ assertTrue(immutableMap.containsKey("Costa Rica"));
+
+ assertThrows(UnsupportedOperationException.class, () -> immutableMap.put("Canada", "North America"));
+
+ mutableMap.remove("USA");
+ assertTrue(immutableMap.containsKey("USA"));
+
+ mutableMap.put("Mexico", "North America");
+ assertFalse(immutableMap.containsKey("Mexico"));
+ }
+
+ @Test
+ @SuppressWarnings("deprecation")
+ public void whenGuavaImmutableMapFromOfMethod_thenOriginalCollectionChangesDoNotReflectInImmutableMap() {
+
+ ImmutableMap immutableMap = ImmutableMap.of("USA", "North America", "Costa Rica", "North America");
+ assertTrue(immutableMap.containsKey("USA"));
+ assertTrue(immutableMap.containsKey("Costa Rica"));
+
+ assertThrows(UnsupportedOperationException.class, () -> immutableMap.put("Canada", "North America"));
+ }
+
+}
diff --git a/java-dates/README.md b/java-dates/README.md
index 66046b16a6..3f6d7998b8 100644
--- a/java-dates/README.md
+++ b/java-dates/README.md
@@ -24,3 +24,4 @@
- [Add Hours To a Date In Java](http://www.baeldung.com/java-add-hours-date)
- [Guide to DateTimeFormatter](https://www.baeldung.com/java-datetimeformatter)
- [Format ZonedDateTime to String](https://www.baeldung.com/java-format-zoned-datetime-string)
+- [Convert Between java.time.Instant and java.sql.Timestamp](Convert Between java.time.Instant and java.sql.Timestamp)
diff --git a/java-dates/src/test/java/com/baeldung/timestamp/StringToTimestampConverterUnitTest.java b/java-dates/src/test/java/com/baeldung/timestamp/StringToTimestampConverterUnitTest.java
new file mode 100644
index 0000000000..2be646eb51
--- /dev/null
+++ b/java-dates/src/test/java/com/baeldung/timestamp/StringToTimestampConverterUnitTest.java
@@ -0,0 +1,22 @@
+package com.baeldung.timestamp;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.sql.Timestamp;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+public class StringToTimestampConverterUnitTest {
+
+ @Test
+ public void givenDatePattern_whenParsing_thenTimestampIsCorrect() {
+ String pattern = "MMM dd, yyyy HH:mm:ss.SSSSSSSS";
+ String timestampAsString = "Nov 12, 2018 13:02:56.12345678";
+ DateTimeFormatter formatter = DateTimeFormatter.ofPattern(pattern);
+ LocalDateTime localDateTime = LocalDateTime.from(formatter.parse(timestampAsString));
+
+ Timestamp timestamp = Timestamp.valueOf(localDateTime);
+ Assert.assertEquals("2018-11-12 13:02:56.12345678", timestamp.toString());
+ }
+}
\ No newline at end of file
diff --git a/java-dates/src/test/java/com/baeldung/timestamp/TimestampToStringConverterTest.java b/java-dates/src/test/java/com/baeldung/timestamp/TimestampToStringConverterTest.java
new file mode 100644
index 0000000000..b25ff2edb3
--- /dev/null
+++ b/java-dates/src/test/java/com/baeldung/timestamp/TimestampToStringConverterTest.java
@@ -0,0 +1,19 @@
+package com.baeldung.timestamp;
+
+import org.junit.Assert;
+import org.junit.jupiter.api.Test;
+
+import java.sql.Timestamp;
+import java.time.format.DateTimeFormatter;
+
+public class TimestampToStringConverterTest {
+
+ @Test
+ public void givenDatePattern_whenFormatting_thenResultingStringIsCorrect() {
+ Timestamp timestamp = Timestamp.valueOf("2018-12-12 01:02:03.123456789");
+ DateTimeFormatter formatter = DateTimeFormatter.ISO_LOCAL_DATE_TIME;
+
+ String timestampAsString = formatter.format(timestamp.toLocalDateTime());
+ Assert.assertEquals("2018-12-12T01:02:03.123456789", timestampAsString);
+ }
+}
\ No newline at end of file
diff --git a/java-ee-8-security-api/app-auth-basic-store-db/pom.xml b/java-ee-8-security-api/app-auth-basic-store-db/pom.xml
index 6ecc9f7e80..cf92fe2ecd 100644
--- a/java-ee-8-security-api/app-auth-basic-store-db/pom.xml
+++ b/java-ee-8-security-api/app-auth-basic-store-db/pom.xml
@@ -2,8 +2,8 @@
4.0.0
-
app-auth-basic-store-db
+ app-auth-basic-store-db
war
diff --git a/java-ee-8-security-api/app-auth-custom-form-store-custom/pom.xml b/java-ee-8-security-api/app-auth-custom-form-store-custom/pom.xml
index bf5315e993..43809f1cd5 100644
--- a/java-ee-8-security-api/app-auth-custom-form-store-custom/pom.xml
+++ b/java-ee-8-security-api/app-auth-custom-form-store-custom/pom.xml
@@ -2,8 +2,8 @@
4.0.0
-
app-auth-custom-form-store-custom
+ app-auth-custom-form-store-custom
war
diff --git a/java-ee-8-security-api/app-auth-custom-no-store/pom.xml b/java-ee-8-security-api/app-auth-custom-no-store/pom.xml
index c05c0f19be..f9d63f8623 100644
--- a/java-ee-8-security-api/app-auth-custom-no-store/pom.xml
+++ b/java-ee-8-security-api/app-auth-custom-no-store/pom.xml
@@ -2,8 +2,8 @@
4.0.0
-
app-auth-custom-no-store
+ app-auth-custom-no-store
war
diff --git a/java-ee-8-security-api/app-auth-form-store-ldap/pom.xml b/java-ee-8-security-api/app-auth-form-store-ldap/pom.xml
index 570b36add5..6a7b97b2d7 100644
--- a/java-ee-8-security-api/app-auth-form-store-ldap/pom.xml
+++ b/java-ee-8-security-api/app-auth-form-store-ldap/pom.xml
@@ -3,8 +3,8 @@
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
-
app-auth-form-store-ldap
+ app-auth-form-store-ldap
war
diff --git a/java-ee-8-security-api/pom.xml b/java-ee-8-security-api/pom.xml
index 7546839492..ad33c74ad3 100644
--- a/java-ee-8-security-api/pom.xml
+++ b/java-ee-8-security-api/pom.xml
@@ -5,6 +5,7 @@
4.0.0
java-ee-8-security-api
1.0-SNAPSHOT
+ java-ee-8-security-api
pom
diff --git a/java-lite/pom.xml b/java-lite/pom.xml
index 5111cd2e7f..03f4e29f4e 100644
--- a/java-lite/pom.xml
+++ b/java-lite/pom.xml
@@ -5,6 +5,7 @@
org.baeldung
java-lite
1.0-SNAPSHOT
+ java-lite
war
diff --git a/java-rmi/pom.xml b/java-rmi/pom.xml
index 33931baedf..ad413b66ab 100644
--- a/java-rmi/pom.xml
+++ b/java-rmi/pom.xml
@@ -4,6 +4,7 @@
com.baeldung.rmi
java-rmi
1.0-SNAPSHOT
+ java-rmi
jar
diff --git a/java-spi/exchange-rate-api/pom.xml b/java-spi/exchange-rate-api/pom.xml
index b626916b56..fd3a7ae0a7 100644
--- a/java-spi/exchange-rate-api/pom.xml
+++ b/java-spi/exchange-rate-api/pom.xml
@@ -2,6 +2,7 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
exchange-rate-api
+ exchange-rate-api
jar
diff --git a/java-spi/exchange-rate-app/pom.xml b/java-spi/exchange-rate-app/pom.xml
index a42a30ceda..7a076d560c 100644
--- a/java-spi/exchange-rate-app/pom.xml
+++ b/java-spi/exchange-rate-app/pom.xml
@@ -2,6 +2,7 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
exchange-rate-app
+ exchange-rate-app
jar
diff --git a/java-spi/exchange-rate-impl/pom.xml b/java-spi/exchange-rate-impl/pom.xml
index 41c874c659..8a77b51793 100644
--- a/java-spi/exchange-rate-impl/pom.xml
+++ b/java-spi/exchange-rate-impl/pom.xml
@@ -2,6 +2,7 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
exchange-rate-impl
+ exchange-rate-impl
jar
diff --git a/java-spi/pom.xml b/java-spi/pom.xml
index 9ac87bf960..97a22024bd 100644
--- a/java-spi/pom.xml
+++ b/java-spi/pom.xml
@@ -2,6 +2,7 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
java-spi
+ java-spi
pom
diff --git a/java-strings/README.md b/java-strings/README.md
index 1b24a2b821..11893e68a2 100644
--- a/java-strings/README.md
+++ b/java-strings/README.md
@@ -36,3 +36,6 @@
- [String Performance Hints](https://www.baeldung.com/java-string-performance)
- [Using indexOf to Find All Occurrences of a Word in a String](https://www.baeldung.com/java-indexOf-find-string-occurrences)
- [Java Base64 Encoding and Decoding](https://www.baeldung.com/java-base64-encode-and-decode)
+- [Generate a Secure Random Password in Java](https://www.baeldung.com/java-generate-secure-password)
+- [Removing Repeated Characters from a String](https://www.baeldung.com/java-remove-repeated-char)
+- [Join Array of Primitives with Separator in Java](https://www.baeldung.com/java-join-primitive-array)
diff --git a/java-strings/pom.xml b/java-strings/pom.xml
index ab94c28d4d..f4fb1c0865 100755
--- a/java-strings/pom.xml
+++ b/java-strings/pom.xml
@@ -122,13 +122,13 @@
- 3.5
+ 3.8.1
1.10
3.6.1
1.19
61.1
- 26.0-jre
+ 27.0.1-jre
diff --git a/java-strings/src/main/java/com/baeldung/string/checkinputs/CheckIntegerInput.java b/java-strings/src/main/java/com/baeldung/string/checkinputs/CheckIntegerInput.java
new file mode 100644
index 0000000000..9462244bbb
--- /dev/null
+++ b/java-strings/src/main/java/com/baeldung/string/checkinputs/CheckIntegerInput.java
@@ -0,0 +1,19 @@
+package com.baeldung.string.checkinputs;
+
+import java.util.Scanner;
+
+public class CheckIntegerInput {
+
+ public static void main(String[] args) {
+
+ try (Scanner scanner = new Scanner(System.in)) {
+ System.out.println("Enter an integer : ");
+
+ if (scanner.hasNextInt()) {
+ System.out.println("You entered : " + scanner.nextInt());
+ } else {
+ System.out.println("The input is not an integer");
+ }
+ }
+ }
+}
\ No newline at end of file
diff --git a/java-strings/src/main/java/com/baeldung/string/removeleadingtrailingchar/RemoveLeadingAndTrailingZeroes.java b/java-strings/src/main/java/com/baeldung/string/removeleadingtrailingchar/RemoveLeadingAndTrailingZeroes.java
new file mode 100644
index 0000000000..c9d748e897
--- /dev/null
+++ b/java-strings/src/main/java/com/baeldung/string/removeleadingtrailingchar/RemoveLeadingAndTrailingZeroes.java
@@ -0,0 +1,103 @@
+package com.baeldung.string.removeleadingtrailingchar;
+
+
+import org.apache.commons.lang3.StringUtils;
+
+import com.google.common.base.CharMatcher;
+
+public class RemoveLeadingAndTrailingZeroes {
+
+ public static String removeLeadingZeroesWithStringBuilder(String s) {
+ StringBuilder sb = new StringBuilder(s);
+
+ while (sb.length() > 1 && sb.charAt(0) == '0') {
+ sb.deleteCharAt(0);
+ }
+
+ return sb.toString();
+ }
+
+ public static String removeTrailingZeroesWithStringBuilder(String s) {
+ StringBuilder sb = new StringBuilder(s);
+
+ while (sb.length() > 1 && sb.charAt(sb.length() - 1) == '0') {
+ sb.setLength(sb.length() - 1);
+ }
+
+ return sb.toString();
+ }
+
+ public static String removeLeadingZeroesWithSubstring(String s) {
+ int index = 0;
+
+ for (; index < s.length() - 1; index++) {
+ if (s.charAt(index) != '0') {
+ break;
+ }
+ }
+
+ return s.substring(index);
+ }
+
+ public static String removeTrailingZeroesWithSubstring(String s) {
+ int index = s.length() - 1;
+
+ for (; index > 0; index--) {
+ if (s.charAt(index) != '0') {
+ break;
+ }
+ }
+
+ return s.substring(0, index + 1);
+ }
+
+ public static String removeLeadingZeroesWithApacheCommonsStripStart(String s) {
+ String stripped = StringUtils.stripStart(s, "0");
+
+ if (stripped.isEmpty() && !s.isEmpty()) {
+ return "0";
+ }
+
+ return stripped;
+ }
+
+ public static String removeTrailingZeroesWithApacheCommonsStripEnd(String s) {
+ String stripped = StringUtils.stripEnd(s, "0");
+
+ if (stripped.isEmpty() && !s.isEmpty()) {
+ return "0";
+ }
+
+ return stripped;
+ }
+
+ public static String removeLeadingZeroesWithGuavaTrimLeadingFrom(String s) {
+ String stripped = CharMatcher.is('0')
+ .trimLeadingFrom(s);
+
+ if (stripped.isEmpty() && !s.isEmpty()) {
+ return "0";
+ }
+
+ return stripped;
+ }
+
+ public static String removeTrailingZeroesWithGuavaTrimTrailingFrom(String s) {
+ String stripped = CharMatcher.is('0')
+ .trimTrailingFrom(s);
+
+ if (stripped.isEmpty() && !s.isEmpty()) {
+ return "0";
+ }
+
+ return stripped;
+ }
+
+ public static String removeLeadingZeroesWithRegex(String s) {
+ return s.replaceAll("^0+(?!$)", "");
+ }
+
+ public static String removeTrailingZeroesWithRegex(String s) {
+ return s.replaceAll("(?!^)0+$", "");
+ }
+}
diff --git a/java-strings/src/main/java/com/baeldung/stringduplicates/RemoveDuplicateFromString.java b/java-strings/src/main/java/com/baeldung/stringduplicates/RemoveDuplicateFromString.java
new file mode 100644
index 0000000000..d8fd9c4b14
--- /dev/null
+++ b/java-strings/src/main/java/com/baeldung/stringduplicates/RemoveDuplicateFromString.java
@@ -0,0 +1,102 @@
+package com.baeldung.stringduplicates;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.Set;
+
+public class RemoveDuplicateFromString {
+
+
+ String removeDuplicatesUsingCharArray(String str) {
+
+ char[] chars = str.toCharArray();
+ StringBuilder sb = new StringBuilder();
+ int repeatedCtr;
+ for (int i = 0; i < chars.length; i++) {
+ repeatedCtr = 0;
+ for (int j = i + 1; j < chars.length; j++) {
+ if (chars[i] == chars[j]) {
+ repeatedCtr++;
+ }
+ }
+ if (repeatedCtr == 0) {
+ sb.append(chars[i]);
+ }
+ }
+ return sb.toString();
+ }
+
+ String removeDuplicatesUsinglinkedHashSet(String str) {
+
+ StringBuilder sb = new StringBuilder();
+ Set linkedHashSet = new LinkedHashSet<>();
+
+ for (int i = 0; i < str.length(); i++) {
+ linkedHashSet.add(str.charAt(i));
+ }
+
+ for (Character c : linkedHashSet) {
+ sb.append(c);
+ }
+
+ return sb.toString();
+ }
+
+ String removeDuplicatesUsingSorting(String str) {
+ StringBuilder sb = new StringBuilder();
+ if(!str.isEmpty()) {
+ char[] chars = str.toCharArray();
+ Arrays.sort(chars);
+
+ sb.append(chars[0]);
+ for (int i = 1; i < chars.length; i++) {
+ if (chars[i] != chars[i - 1]) {
+ sb.append(chars[i]);
+ }
+ }
+ }
+
+ return sb.toString();
+ }
+
+ String removeDuplicatesUsingHashSet(String str) {
+
+ StringBuilder sb = new StringBuilder();
+ Set hashSet = new HashSet<>();
+
+ for (int i = 0; i < str.length(); i++) {
+ hashSet.add(str.charAt(i));
+ }
+
+ for (Character c : hashSet) {
+ sb.append(c);
+ }
+
+ return sb.toString();
+ }
+
+ String removeDuplicatesUsingIndexOf(String str) {
+
+ StringBuilder sb = new StringBuilder();
+ int idx;
+ for (int i = 0; i < str.length(); i++) {
+ char c = str.charAt(i);
+ idx = str.indexOf(c, i + 1);
+ if (idx == -1) {
+ sb.append(c);
+ }
+ }
+ return sb.toString();
+ }
+
+
+ String removeDuplicatesUsingDistinct(String str) {
+ StringBuilder sb = new StringBuilder();
+ str.chars().distinct().forEach(c -> sb.append((char) c));
+ return sb.toString();
+ }
+
+}
+
+
diff --git a/java-strings/src/test/java/com/baeldung/string/StringFromPrimitiveArrayUnitTest.java b/java-strings/src/test/java/com/baeldung/string/StringFromPrimitiveArrayUnitTest.java
new file mode 100644
index 0000000000..c93089e543
--- /dev/null
+++ b/java-strings/src/test/java/com/baeldung/string/StringFromPrimitiveArrayUnitTest.java
@@ -0,0 +1,129 @@
+package com.baeldung.string;
+
+import com.google.common.base.Joiner;
+import com.google.common.primitives.Chars;
+import com.google.common.primitives.Ints;
+import org.apache.commons.lang3.ArrayUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.junit.Test;
+
+import java.nio.CharBuffer;
+import java.util.Arrays;
+import java.util.StringJoiner;
+import java.util.stream.Collectors;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+
+public class StringFromPrimitiveArrayUnitTest {
+
+ private int[] intArray = {1, 2, 3, 4, 5, 6, 7, 8, 9};
+
+ private char[] charArray = {'a', 'b', 'c', 'd', 'e', 'f'};
+
+ private char separatorChar = '-';
+
+ private String separator = String.valueOf(separatorChar);
+
+ private String expectedIntString = "1-2-3-4-5-6-7-8-9";
+
+ private String expectedCharString = "a-b-c-d-e-f";
+
+ @Test
+ public void givenIntArray_whenJoinBySeparator_thenReturnsString_through_Java8CollectorsJoining() {
+ assertThat(Arrays.stream(intArray)
+ .mapToObj(String::valueOf)
+ .collect(Collectors.joining(separator)))
+ .isEqualTo(expectedIntString);
+ }
+
+ @Test
+ public void givenCharArray_whenJoinBySeparator_thenReturnsString_through_Java8CollectorsJoining() {
+ assertThat(CharBuffer.wrap(charArray).chars()
+ .mapToObj(intChar -> String.valueOf((char) intChar))
+ .collect(Collectors.joining(separator)))
+ .isEqualTo(expectedCharString);
+ }
+
+
+ @Test
+ public void giveIntArray_whenJoinBySeparator_thenReturnsString_through_Java8StringJoiner() {
+ StringJoiner intStringJoiner = new StringJoiner(separator);
+
+ Arrays.stream(intArray)
+ .mapToObj(String::valueOf)
+ .forEach(intStringJoiner::add);
+
+ assertThat(intStringJoiner.toString()).isEqualTo(expectedIntString);
+ }
+
+ @Test
+ public void givenCharArray_whenJoinBySeparator_thenReturnsString_through_Java8StringJoiner() {
+ StringJoiner charStringJoiner = new StringJoiner(separator);
+
+ CharBuffer.wrap(charArray).chars()
+ .mapToObj(intChar -> String.valueOf((char) intChar))
+ .forEach(charStringJoiner::add);
+
+ assertThat(charStringJoiner.toString()).isEqualTo(expectedCharString);
+ }
+
+ @Test
+ public void givenIntArray_whenJoinBySeparator_thenReturnsString_through_CommonsLang() {
+ assertThat(StringUtils.join(intArray, separatorChar)).isEqualTo(expectedIntString);
+ assertThat(StringUtils.join(ArrayUtils.toObject(intArray), separator)).isEqualTo(expectedIntString);
+ }
+
+ @Test
+ public void givenCharArray_whenJoinBySeparator_thenReturnsString_through_CommonsLang() {
+ assertThat(StringUtils.join(charArray, separatorChar)).isEqualTo(expectedCharString);
+ assertThat(StringUtils.join(ArrayUtils.toObject(charArray), separator)).isEqualTo(expectedCharString);
+ }
+
+ @Test
+ public void givenIntArray_whenJoinBySeparator_thenReturnsString_through_GuavaJoiner() {
+ assertThat(Joiner.on(separator).join(Ints.asList(intArray))).isEqualTo(expectedIntString);
+ }
+
+ @Test
+ public void givenCharArray_whenJoinBySeparator_thenReturnsString_through_GuavaJoiner() {
+ assertThat(Joiner.on(separator).join(Chars.asList(charArray))).isEqualTo(expectedCharString);
+ }
+
+ @Test
+ public void givenIntArray_whenJoinBySeparator_thenReturnsString_through_Java7StringBuilder() {
+ assertThat(joinIntArrayWithStringBuilder(intArray, separator)).isEqualTo(expectedIntString);
+ }
+
+ @Test
+ public void givenCharArray_whenJoinBySeparator_thenReturnsString_through_Java7StringBuilder() {
+ assertThat(joinCharArrayWithStringBuilder(charArray, separator)).isEqualTo(expectedCharString);
+ }
+
+ private String joinIntArrayWithStringBuilder(int[] array, String separator) {
+ if (array.length == 0) {
+ return "";
+ }
+ StringBuilder stringBuilder = new StringBuilder();
+ for (int i = 0; i < array.length - 1; i++) {
+ stringBuilder.append(array[i]);
+ stringBuilder.append(separator);
+ }
+ stringBuilder.append(array[array.length - 1]);
+ return stringBuilder.toString();
+ }
+
+ private String joinCharArrayWithStringBuilder(char[] array, String separator) {
+ if (array.length == 0) {
+ return "";
+ }
+ StringBuilder stringBuilder = new StringBuilder();
+ for (int i = 0; i < array.length - 1; i++) {
+ stringBuilder.append(array[i]);
+ stringBuilder.append(separator);
+ }
+ stringBuilder.append(array[array.length - 1]);
+ return stringBuilder.toString();
+ }
+
+}
diff --git a/java-strings/src/test/java/com/baeldung/string/StringReplaceAndRemoveUnitTest.java b/java-strings/src/test/java/com/baeldung/string/StringReplaceAndRemoveUnitTest.java
new file mode 100644
index 0000000000..d952d2383b
--- /dev/null
+++ b/java-strings/src/test/java/com/baeldung/string/StringReplaceAndRemoveUnitTest.java
@@ -0,0 +1,83 @@
+package com.baeldung.string;
+
+
+import org.apache.commons.lang3.StringUtils;
+import org.junit.Test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+public class StringReplaceAndRemoveUnitTest {
+
+
+ @Test
+ public void givenTestStrings_whenReplace_thenProcessedString() {
+
+ String master = "Hello World Baeldung!";
+ String target = "Baeldung";
+ String replacement = "Java";
+ String processed = master.replace(target, replacement);
+ assertTrue(processed.contains(replacement));
+ assertFalse(processed.contains(target));
+
+ }
+
+ @Test
+ public void givenTestStrings_whenReplaceAll_thenProcessedString() {
+
+ String master2 = "Welcome to Baeldung, Hello World Baeldung";
+ String regexTarget= "(Baeldung)$";
+ String replacement = "Java";
+ String processed2 = master2.replaceAll(regexTarget, replacement);
+ assertTrue(processed2.endsWith("Java"));
+
+ }
+
+ @Test
+ public void givenTestStrings_whenStringBuilderMethods_thenProcessedString() {
+
+ String master = "Hello World Baeldung!";
+ String target = "Baeldung";
+ String replacement = "Java";
+
+ int startIndex = master.indexOf(target);
+ int stopIndex = startIndex + target.length();
+
+ StringBuilder builder = new StringBuilder(master);
+
+
+ builder.delete(startIndex, stopIndex);
+ assertFalse(builder.toString().contains(target));
+
+
+ builder.replace(startIndex, stopIndex, replacement);
+ assertTrue(builder.toString().contains(replacement));
+
+
+ }
+
+
+ @Test
+ public void givenTestStrings_whenStringUtilsMethods_thenProcessedStrings() {
+
+ String master = "Hello World Baeldung!";
+ String target = "Baeldung";
+ String replacement = "Java";
+
+ String processed = StringUtils.replace(master, target, replacement);
+ assertTrue(processed.contains(replacement));
+
+ String master2 = "Hello World Baeldung!";
+ String target2 = "baeldung";
+ String processed2 = StringUtils.replaceIgnoreCase(master2, target2, replacement);
+ assertFalse(processed2.contains(target));
+
+ }
+
+
+
+
+
+
+
+}
diff --git a/java-strings/src/test/java/com/baeldung/string/removeleadingtrailingchar/RemoveLeadingAndTrailingZeroesUnitTest.java b/java-strings/src/test/java/com/baeldung/string/removeleadingtrailingchar/RemoveLeadingAndTrailingZeroesUnitTest.java
new file mode 100644
index 0000000000..55f932fea1
--- /dev/null
+++ b/java-strings/src/test/java/com/baeldung/string/removeleadingtrailingchar/RemoveLeadingAndTrailingZeroesUnitTest.java
@@ -0,0 +1,143 @@
+package com.baeldung.string.removeleadingtrailingchar;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.util.stream.Stream;
+
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+public class RemoveLeadingAndTrailingZeroesUnitTest {
+
+ public static Stream leadingZeroTestProvider() {
+ return Stream.of(Arguments.of("", ""), Arguments.of("abc", "abc"), Arguments.of("123", "123"), Arguments.of("0abc", "abc"), Arguments.of("0123", "123"), Arguments.of("0000123", "123"), Arguments.of("1230", "1230"), Arguments.of("01230", "1230"), Arguments.of("01", "1"),
+ Arguments.of("0001", "1"), Arguments.of("0", "0"), Arguments.of("00", "0"), Arguments.of("0000", "0"), Arguments.of("12034", "12034"), Arguments.of("1200034", "1200034"), Arguments.of("0012034", "12034"), Arguments.of("1203400", "1203400"));
+ }
+
+ public static Stream trailingZeroTestProvider() {
+ return Stream.of(Arguments.of("", ""), Arguments.of("abc", "abc"), Arguments.of("123", "123"), Arguments.of("abc0", "abc"), Arguments.of("1230", "123"), Arguments.of("1230000", "123"), Arguments.of("0123", "0123"), Arguments.of("01230", "0123"), Arguments.of("10", "1"),
+ Arguments.of("1000", "1"), Arguments.of("0", "0"), Arguments.of("00", "0"), Arguments.of("0000", "0"), Arguments.of("12034", "12034"), Arguments.of("1200034", "1200034"), Arguments.of("0012034", "0012034"), Arguments.of("1203400", "12034"));
+ }
+
+ @ParameterizedTest
+ @MethodSource("leadingZeroTestProvider")
+ public void givenTestStrings_whenRemoveLeadingZeroesWithStringBuilder_thenReturnWithoutLeadingZeroes(String input, String expected) {
+ // given
+
+ // when
+ String result = RemoveLeadingAndTrailingZeroes.removeLeadingZeroesWithStringBuilder(input);
+
+ // then
+ assertThat(result).isEqualTo(expected);
+ }
+
+ @ParameterizedTest
+ @MethodSource("trailingZeroTestProvider")
+ public void givenTestStrings_whenRemoveTrailingZeroesWithStringBuilder_thenReturnWithoutTrailingZeroes(String input, String expected) {
+ // given
+
+ // when
+ String result = RemoveLeadingAndTrailingZeroes.removeTrailingZeroesWithStringBuilder(input);
+
+ // then
+ assertThat(result).isEqualTo(expected);
+ }
+
+ @ParameterizedTest
+ @MethodSource("leadingZeroTestProvider")
+ public void givenTestStrings_whenRemoveLeadingZeroesWithSubstring_thenReturnWithoutLeadingZeroes(String input, String expected) {
+ // given
+
+ // when
+ String result = RemoveLeadingAndTrailingZeroes.removeLeadingZeroesWithSubstring(input);
+
+ // then
+ assertThat(result).isEqualTo(expected);
+ }
+
+ @ParameterizedTest
+ @MethodSource("trailingZeroTestProvider")
+ public void givenTestStrings_whenRemoveTrailingZeroesWithSubstring_thenReturnWithoutTrailingZeroes(String input, String expected) {
+ // given
+
+ // when
+ String result = RemoveLeadingAndTrailingZeroes.removeTrailingZeroesWithSubstring(input);
+
+ // then
+ assertThat(result).isEqualTo(expected);
+ }
+
+ @ParameterizedTest
+ @MethodSource("leadingZeroTestProvider")
+ public void givenTestStrings_whenRemoveLeadingZeroesWithApacheCommonsStripStart_thenReturnWithoutLeadingZeroes(String input, String expected) {
+ // given
+
+ // when
+ String result = RemoveLeadingAndTrailingZeroes.removeLeadingZeroesWithApacheCommonsStripStart(input);
+
+ // then
+ assertThat(result).isEqualTo(expected);
+ }
+
+ @ParameterizedTest
+ @MethodSource("trailingZeroTestProvider")
+ public void givenTestStrings_whenRemoveTrailingZeroesWithApacheCommonsStripEnd_thenReturnWithoutTrailingZeroes(String input, String expected) {
+ // given
+
+ // when
+ String result = RemoveLeadingAndTrailingZeroes.removeTrailingZeroesWithApacheCommonsStripEnd(input);
+
+ // then
+ assertThat(result).isEqualTo(expected);
+ }
+
+ @ParameterizedTest
+ @MethodSource("leadingZeroTestProvider")
+ public void givenTestStrings_whenRemoveLeadingZeroesWithGuavaTrimLeadingFrom_thenReturnWithoutLeadingZeroes(String input, String expected) {
+ // given
+
+ // when
+ String result = RemoveLeadingAndTrailingZeroes.removeLeadingZeroesWithGuavaTrimLeadingFrom(input);
+
+ // then
+ assertThat(result).isEqualTo(expected);
+ }
+
+ @ParameterizedTest
+ @MethodSource("trailingZeroTestProvider")
+ public void givenTestStrings_whenRemoveTrailingZeroesWithGuavaTrimTrailingFrom_thenReturnWithoutTrailingZeroes(String input, String expected) {
+ // given
+
+ // when
+ String result = RemoveLeadingAndTrailingZeroes.removeTrailingZeroesWithGuavaTrimTrailingFrom(input);
+
+ // then
+ assertThat(result).isEqualTo(expected);
+ }
+
+ @ParameterizedTest
+ @MethodSource("leadingZeroTestProvider")
+ public void givenTestStrings_whenRemoveLeadingZeroesWithRegex_thenReturnWithoutLeadingZeroes(String input, String expected) {
+ // given
+
+ // when
+ String result = RemoveLeadingAndTrailingZeroes.removeLeadingZeroesWithRegex(input);
+
+ // then
+ assertThat(result).isEqualTo(expected);
+ }
+
+ @ParameterizedTest
+ @MethodSource("trailingZeroTestProvider")
+ public void givenTestStrings_whenRemoveTrailingZeroesWithRegex_thenReturnWithoutTrailingZeroes(String input, String expected) {
+ // given
+
+ // when
+ String result = RemoveLeadingAndTrailingZeroes.removeTrailingZeroesWithRegex(input);
+
+ // then
+ assertThat(result).isEqualTo(expected);
+ }
+
+}
diff --git a/java-strings/src/test/java/com/baeldung/stringduplicates/RemoveDuplicateFromStringUnitTest.java b/java-strings/src/test/java/com/baeldung/stringduplicates/RemoveDuplicateFromStringUnitTest.java
new file mode 100644
index 0000000000..895ecc4a3b
--- /dev/null
+++ b/java-strings/src/test/java/com/baeldung/stringduplicates/RemoveDuplicateFromStringUnitTest.java
@@ -0,0 +1,82 @@
+package com.baeldung.stringduplicates;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class RemoveDuplicateFromStringUnitTest {
+
+ private final static String STR1 = "racecar";
+ private final static String STR2 = "J2ee programming";
+ private final static String STR_EMPTY = "";
+
+ private RemoveDuplicateFromString removeDuplicateFromString;
+
+ @Before
+ public void executedBeforeEach() {
+ removeDuplicateFromString = new RemoveDuplicateFromString();
+ }
+
+
+ @Test
+ public void whenUsingCharArray_DuplicatesShouldBeRemovedWithoutKeepingStringOrder() {
+ String str1 = removeDuplicateFromString.removeDuplicatesUsingCharArray(STR1);
+ String str2 = removeDuplicateFromString.removeDuplicatesUsingCharArray(STR2);
+ String strEmpty = removeDuplicateFromString.removeDuplicatesUsingCharArray(STR_EMPTY);
+ Assert.assertEquals("", strEmpty);
+ Assert.assertEquals("ecar", str1);
+ Assert.assertEquals("J2e poraming", str2);
+ }
+
+ @Test
+ public void whenUsingLinkedHashSet_DuplicatesShouldBeRemovedAndItKeepStringOrder() {
+ String str1 = removeDuplicateFromString.removeDuplicatesUsinglinkedHashSet(STR1);
+ String str2 = removeDuplicateFromString.removeDuplicatesUsinglinkedHashSet(STR2);
+
+ String strEmpty = removeDuplicateFromString.removeDuplicatesUsinglinkedHashSet(STR_EMPTY);
+ Assert.assertEquals("", strEmpty);
+ Assert.assertEquals("race", str1);
+ Assert.assertEquals("J2e progamin", str2);
+ }
+
+ @Test
+ public void whenUsingSorting_DuplicatesShouldBeRemovedWithoutKeepingStringOrder() {
+ String str1 = removeDuplicateFromString.removeDuplicatesUsingSorting(STR1);
+ String str2 = removeDuplicateFromString.removeDuplicatesUsingSorting(STR2);
+
+ String strEmpty = removeDuplicateFromString.removeDuplicatesUsingSorting(STR_EMPTY);
+ Assert.assertEquals("", strEmpty);
+ Assert.assertEquals("acer", str1);
+ Assert.assertEquals(" 2Jaegimnopr", str2);
+ }
+
+ @Test
+ public void whenUsingHashSet_DuplicatesShouldBeRemovedWithoutKeepingStringOrder() {
+ String str1 = removeDuplicateFromString.removeDuplicatesUsingHashSet(STR1);
+ String str2 = removeDuplicateFromString.removeDuplicatesUsingHashSet(STR2);
+ String strEmpty = removeDuplicateFromString.removeDuplicatesUsingHashSet(STR_EMPTY);
+ Assert.assertEquals("", strEmpty);
+ Assert.assertEquals("arce", str1);
+ Assert.assertEquals(" pa2regiJmno", str2);
+ }
+
+ @Test
+ public void whenUsingIndexOf_DuplicatesShouldBeRemovedWithoutKeepingStringOrder() {
+ String str1 = removeDuplicateFromString.removeDuplicatesUsingIndexOf(STR1);
+ String str2 = removeDuplicateFromString.removeDuplicatesUsingIndexOf(STR2);
+ String strEmpty = removeDuplicateFromString.removeDuplicatesUsingIndexOf(STR_EMPTY);
+ Assert.assertEquals("", strEmpty);
+ Assert.assertEquals("ecar", str1);
+ Assert.assertEquals("J2e poraming", str2);
+ }
+
+ @Test
+ public void whenUsingJava8_DuplicatesShouldBeRemovedAndItKeepStringOrder() {
+ String str1 = removeDuplicateFromString.removeDuplicatesUsingDistinct(STR1);
+ String str2 = removeDuplicateFromString.removeDuplicatesUsingDistinct(STR2);
+ String strEmpty = removeDuplicateFromString.removeDuplicatesUsingDistinct(STR_EMPTY);
+ Assert.assertEquals("", strEmpty);
+ Assert.assertEquals("race", str1);
+ Assert.assertEquals("J2e progamin", str2);
+ }
+}
diff --git a/java-vavr-stream/pom.xml b/java-vavr-stream/pom.xml
index 395d2c81ba..c92f3c8742 100644
--- a/java-vavr-stream/pom.xml
+++ b/java-vavr-stream/pom.xml
@@ -5,6 +5,7 @@
com.baeldung.samples
java-vavr-stream
1.0
+ java-vavr-stream
jar
diff --git a/java-websocket/pom.xml b/java-websocket/pom.xml
index e8ff8dfc36..7ba3ca61d0 100644
--- a/java-websocket/pom.xml
+++ b/java-websocket/pom.xml
@@ -1,10 +1,10 @@
4.0.0
- com.baeldung
java-websocket
- war
0.0.1-SNAPSHOT
+ java-websocket
+ war
com.baeldung
diff --git a/javafx/pom.xml b/javafx/pom.xml
index c9c5bc294e..44e6f7e8da 100644
--- a/javafx/pom.xml
+++ b/javafx/pom.xml
@@ -3,7 +3,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
javafx
-
+ javafx
+
parent-modules
com.baeldung
diff --git a/javax-servlets/pom.xml b/javax-servlets/pom.xml
index 7b4eecd880..f00dd0ebe8 100644
--- a/javax-servlets/pom.xml
+++ b/javax-servlets/pom.xml
@@ -5,6 +5,7 @@
com.baeldung.javax-servlets
javax-servlets
1.0-SNAPSHOT
+ javax-servlets
war
diff --git a/javaxval/pom.xml b/javaxval/pom.xml
index 22f1827213..5f2690b5b4 100644
--- a/javaxval/pom.xml
+++ b/javaxval/pom.xml
@@ -1,10 +1,10 @@
4.0.0
- com.baeldung
javaxval
0.1-SNAPSHOT
-
+ javaxval
+
com.baeldung
parent-modules
diff --git a/jee-7/pom.xml b/jee-7/pom.xml
index 4f6e6a20fb..97ed2cc51d 100644
--- a/jee-7/pom.xml
+++ b/jee-7/pom.xml
@@ -1,430 +1,538 @@
-
- 4.0.0
- jee-7
- 1.0-SNAPSHOT
- war
- JavaEE 7 Arquillian Archetype Sample
+
+ 4.0.0
+ jee-7
+ 1.0-SNAPSHOT
+ jee-7
+ war
+ JavaEE 7 Arquillian Archetype Sample
-
- com.baeldung
- parent-modules
- 1.0.0-SNAPSHOT
-
+
+ com.baeldung
+ parent-modules
+ 1.0.0-SNAPSHOT
+
-
-
- javax
- javaee-api
- ${javaee_api.version}
- provided
-
+
+
+ javax
+ javaee-api
+ ${javaee_api.version}
+ provided
+
-
- org.jboss.arquillian.junit
- arquillian-junit-container
- test
-
-
- org.jboss.arquillian.graphene
- graphene-webdriver
- ${graphene-webdriver.version}
- pom
- test
-
-
- com.jayway.awaitility
- awaitility
- ${awaitility.version}
- test
-
+
+ org.jboss.arquillian.junit
+ arquillian-junit-container
+ test
+
+
+ org.jboss.arquillian.graphene
+ graphene-webdriver
+ ${graphene-webdriver.version}
+ pom
+ test
+
+
+ com.jayway.awaitility
+ awaitility
+ ${awaitility.version}
+ test
+
-
- org.jboss.shrinkwrap.resolver
- shrinkwrap-resolver-impl-maven
- test
- jar
-
+
+ org.jboss.shrinkwrap.resolver
+ shrinkwrap-resolver-impl-maven
+ test
+ jar
+
-
- org.jboss.shrinkwrap.resolver
- shrinkwrap-resolver-impl-maven-archive
- test
-
-
- org.apache.httpcomponents
- httpclient
- ${httpclient.version}
-
-
- commons-io
- commons-io
- ${commons-io.version}
-
-
- com.sun.faces
- jsf-api
- ${com.sun.faces.jsf.version}
-
-
- com.sun.faces
- jsf-impl
- ${com.sun.faces.jsf.version}
-
-
- javax.servlet
- jstl
- ${jstl.version}
-
-
- javax.servlet
- javax.servlet-api
- ${javax.servlet-api.version}
-
-
- javax.servlet.jsp
- jsp-api
- ${jsp-api.version}
- provided
-
-
- taglibs
- standard
- ${taglibs.standard.version}
-
+
+ org.jboss.shrinkwrap.resolver
+ shrinkwrap-resolver-impl-maven-archive
+ test
+
+
+ org.apache.httpcomponents
+ httpclient
+ ${httpclient.version}
+
+
+ commons-io
+ commons-io
+ ${commons-io.version}
+
+
+ com.sun.faces
+ jsf-api
+ ${com.sun.faces.jsf.version}
+
+
+ com.sun.faces
+ jsf-impl
+ ${com.sun.faces.jsf.version}
+
+
+ javax.servlet
+ jstl
+ ${jstl.version}
+
+
+ javax.servlet
+ javax.servlet-api
+ ${javax.servlet-api.version}
+
+
+ javax.servlet.jsp
+ jsp-api
+ ${jsp-api.version}
+ provided
+
+
+ taglibs
+ standard
+ ${taglibs.standard.version}
+
-
- javax.mvc
- javax.mvc-api
- 20160715
-
-
- org.glassfish.ozark
- ozark
- ${ozark.version}
-
+
+ javax.mvc
+ javax.mvc-api
+ 20160715
+
+
+ org.glassfish.ozark
+ ozark
+ ${ozark.version}
+
-
- org.springframework.security
- spring-security-web
- ${org.springframework.security.version}
-
+
+ org.springframework.security
+ spring-security-web
+ ${org.springframework.security.version}
+
-
- org.springframework.security
- spring-security-config
- ${org.springframework.security.version}
-
-
- org.springframework.security
- spring-security-taglibs
- ${org.springframework.security.version}
-
-
+
+ org.springframework.security
+ spring-security-config
+ ${org.springframework.security.version}
+
+
+ org.springframework.security
+ spring-security-taglibs
+ ${org.springframework.security.version}
+
+
-
-
-
- org.apache.maven.plugins
- maven-war-plugin
- ${maven-war-plugin.version}
-
- src/main/webapp
- false
-
-
-
-
+
+ org.jboss.spec.javax.batch
+ jboss-batch-api_1.0_spec
+ 1.0.0.Final
+
+
+ org.jberet
+ jberet-core
+ 1.0.2.Final
+
+
+ org.jberet
+ jberet-support
+ 1.0.2.Final
+
+
+ org.jboss.spec.javax.transaction
+ jboss-transaction-api_1.2_spec
+ 1.0.0.Final
+
+
+ org.jboss.marshalling
+ jboss-marshalling
+ 1.4.2.Final
+
+
+ org.jboss.weld
+ weld-core
+ 2.1.1.Final
+
+
+ org.jboss.weld.se
+ weld-se
+ 2.1.1.Final
+
+
+ org.jberet
+ jberet-se
+ 1.0.2.Final
+
+
+ com.h2database
+ h2
+ 1.4.178
+
+
+ org.glassfish.jersey.containers
+ jersey-container-jetty-servlet
+ 2.22.1
+
+
-
-
-
- org.jboss.arquillian
- arquillian-bom
- ${arquillian_core.version}
- import
- pom
-
-
- org.jboss.arquillian.extension
- arquillian-drone-bom
- ${arquillian-drone-bom.version}
- pom
- import
-
-
-
+
+
+
+ org.apache.maven.plugins
+ maven-war-plugin
+ ${maven-war-plugin.version}
+
+ src/main/webapp
+ false
+
+
+
+
+
+
+
+ org.eclipse.m2e
+ lifecycle-mapping
+ 1.0.0
+
+
+
+
+
+
+ org.apache.maven.plugins
+
+
+ maven-pmd-plugin
+
+
+ [3.8,)
+
+
+ check
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
- wildfly-managed-arquillian
-
- true
-
-
- standalone-full.xml
- ${project.build.directory}/wildfly-${version.wildfly}
-
-
-
- io.undertow
- undertow-websockets-jsr
- ${undertow-websockets-jsr.version}
- test
-
-
- org.jboss.resteasy
- resteasy-client
- ${resteasy.version}
- test
-
-
- org.jboss.resteasy
- resteasy-jaxb-provider
- ${resteasy.version}
- test
-
-
- org.jboss.resteasy
- resteasy-json-p-provider
- ${resteasy.version}
- test
-
-
- org.wildfly
- wildfly-arquillian-container-managed
- ${wildfly.version}
- test
-
-
+
+
+
+ org.jboss.arquillian
+ arquillian-bom
+ ${arquillian_core.version}
+ import
+ pom
+
+
+ org.jboss.arquillian.extension
+ arquillian-drone-bom
+ ${arquillian-drone-bom.version}
+ pom
+ import
+
+
+
-
-
-
-
- maven-dependency-plugin
- ${maven-dependency-plugin.version}
-
- ${maven.test.skip}
-
-
-
- unpack
- process-test-classes
-
- unpack
-
-
-
-
- org.wildfly
- wildfly-dist
- ${wildfly.version}
- zip
- false
- ${project.build.directory}
-
-
-
-
-
-
-
- maven-surefire-plugin
- ${maven-surefire-plugin.version}
-
-
- ${project.build.directory}/wildfly-${wildfly.version}
-
-
-
-
-
-
-
-
- wildfly-remote-arquillian
-
-
- io.undertow
- undertow-websockets-jsr
- ${undertow-websockets-jsr.version}
- test
-
-
- org.jboss.resteasy
- resteasy-client
- ${resteasy.version}
- test
-
-
- org.jboss.resteasy
- resteasy-jaxb-provider
- ${resteasy.version}
- test
-
-
- org.jboss.resteasy
- resteasy-json-p-provider
- ${resteasy.version}
- test
-
-
- org.wildfly
- wildfly-arquillian-container-remote
- ${wildfly.version}
- test
-
-
-
-
- glassfish-embedded-arquillian
-
-
- org.glassfish.main.extras
- glassfish-embedded-all
- ${glassfish-embedded-all.version}
- test
-
-
- org.glassfish
- javax.json
- ${javax.json.version}
- test
-
-
- org.glassfish.tyrus
- tyrus-client
- ${tyrus.version}
- test
-
-
- org.glassfish.tyrus
- tyrus-container-grizzly-client
- ${tyrus.version}
- test
-
-
- org.glassfish.jersey.core
- jersey-client
- ${jersey.version}
- test
-
-
- org.jboss.arquillian.container
- arquillian-glassfish-embedded-3.1
- ${arquillian-glassfish.version}
- test
-
-
-
-
- glassfish-remote-arquillian
-
-
- org.glassfish
- javax.json
- ${javax.json.version}
- test
-
-
- org.glassfish.tyrus
- tyrus-client
- ${tyrus.version}
- test
-
-
- org.glassfish.tyrus
- tyrus-container-grizzly-client
- ${tyrus.version}
- test
-
-
- org.glassfish.jersey.core
- jersey-client
- ${jersey.version}
- test
-
-
- org.glassfish.jersey.media
- jersey-media-json-jackson
- ${jersey.version}
- test
-
-
- org.glassfish.jersey.media
- jersey-media-json-processing
- ${jersey.version}
- test
-
-
- org.jboss.arquillian.container
- arquillian-glassfish-remote-3.1
- ${arquillian-glassfish.version}
- test
-
-
-
-
- webdriver-chrome
-
- true
-
-
- chrome
-
-
-
- webdriver-firefox
-
- firefox
-
-
-
+
+
+ wildfly-managed-arquillian
+
+ true
+
+
+ standalone-full.xml
+ ${project.build.directory}/wildfly-${version.wildfly}
+
+
+
+ io.undertow
+ undertow-websockets-jsr
+ ${undertow-websockets-jsr.version}
+ test
+
+
+ org.jboss.resteasy
+ resteasy-client
+ ${resteasy.version}
+ test
+
+
+ org.jboss.resteasy
+ resteasy-jaxb-provider
+ ${resteasy.version}
+ test
+
+
+ org.jboss.resteasy
+ resteasy-json-p-provider
+ ${resteasy.version}
+ test
+
+
+ org.wildfly
+ wildfly-arquillian-container-managed
+ ${wildfly.version}
+ test
+
+
+ sun.jdk
+ jconsole
+
+
+
+
-
-
- bintray-mvc-spec-maven
- bintray
- http://dl.bintray.com/mvc-spec/maven
-
- true
-
-
- false
-
-
-
+
+
+
+
+ maven-dependency-plugin
+ ${maven-dependency-plugin.version}
+
+ ${maven.test.skip}
+
+
+
+ unpack
+ process-test-classes
+
+ unpack
+
+
+
+
+ org.wildfly
+ wildfly-dist
+ ${wildfly.version}
+ zip
+ false
+ ${project.build.directory}
+
+
+ sun.jdk
+ jconsole
+
+
+
+
+
+
+
+
+
+ maven-surefire-plugin
+ ${maven-surefire-plugin.version}
+
+
+ ${project.build.directory}/wildfly-${wildfly.version}
+
+
+
+
+
+
+
+
+ wildfly-remote-arquillian
+
+
+ io.undertow
+ undertow-websockets-jsr
+ ${undertow-websockets-jsr.version}
+ test
+
+
+ org.jboss.resteasy
+ resteasy-client
+ ${resteasy.version}
+ test
+
+
+ org.jboss.resteasy
+ resteasy-jaxb-provider
+ ${resteasy.version}
+ test
+
+
+ org.jboss.resteasy
+ resteasy-json-p-provider
+ ${resteasy.version}
+ test
+
+
+ org.wildfly
+ wildfly-arquillian-container-remote
+ ${wildfly.version}
+ test
+
+
+ sun.jdk
+ jconsole
+
+
+
+
+
+
+ glassfish-embedded-arquillian
+
+
+ org.glassfish.main.extras
+ glassfish-embedded-all
+ ${glassfish-embedded-all.version}
+ test
+
+
+ org.glassfish
+ javax.json
+ ${javax.json.version}
+ test
+
+
+ org.glassfish.tyrus
+ tyrus-client
+ ${tyrus.version}
+ test
+
+
+ org.glassfish.tyrus
+ tyrus-container-grizzly-client
+ ${tyrus.version}
+ test
+
+
+ org.glassfish.jersey.core
+ jersey-client
+ ${jersey.version}
+ test
+
+
+ org.jboss.arquillian.container
+ arquillian-glassfish-embedded-3.1
+ ${arquillian-glassfish.version}
+ test
+
+
+
+
+ glassfish-remote-arquillian
+
+
+ org.glassfish
+ javax.json
+ ${javax.json.version}
+ test
+
+
+ org.glassfish.tyrus
+ tyrus-client
+ ${tyrus.version}
+ test
+
+
+ org.glassfish.tyrus
+ tyrus-container-grizzly-client
+ ${tyrus.version}
+ test
+
+
+ org.glassfish.jersey.core
+ jersey-client
+ ${jersey.version}
+ test
+
+
+ org.glassfish.jersey.media
+ jersey-media-json-jackson
+ ${jersey.version}
+ test
+
+
+ org.glassfish.jersey.media
+ jersey-media-json-processing
+ ${jersey.version}
+ test
+
+
+ org.jboss.arquillian.container
+ arquillian-glassfish-remote-3.1
+ ${arquillian-glassfish.version}
+ test
+
+
+
+
+ webdriver-chrome
+
+ true
+
+
+ chrome
+
+
+
+ webdriver-firefox
+
+ firefox
+
+
+
-
- 1.8
- 3.0.0
- 7.0
- 1.1.11.Final
- 8.2.1.Final
- 1.7.0
- 1.4.6.Final
- 3.0.19.Final
- 4.1.1
- 1.0.4
- 1.13
- 2.25
- 1.0.0.Final
- 2.6
- 4.2.3.RELEASE
- 2.21.0
- 1.1.2
- 2.4
- 2.2.14
- 4.5
- 2.0.1.Final
- 3.1.0
- 2.1.0.Final
- 2.8
- 1.2
- 2.2
- 20160715
-
+
+
+ bintray-mvc-spec-maven
+ bintray
+ http://dl.bintray.com/mvc-spec/maven
+
+ true
+
+
+ false
+
+
+
-
+
+ 1.8
+ 3.0.0
+ 7.0
+ 1.1.11.Final
+ 8.2.1.Final
+ 1.7.0
+ 1.4.6.Final
+ 3.0.19.Final
+ 4.1.1
+ 1.0.4
+ 1.13
+ 2.25
+ 1.0.0.Final
+ 2.6
+ 4.2.3.RELEASE
+ 2.21.0
+ 1.1.2
+ 2.4
+ 2.2.14
+ 4.5
+ 2.0.1.Final
+ 3.1.0
+ 2.1.0.Final
+ 2.8
+ 1.2
+ 2.2
+ 20160715
+
+
+
\ No newline at end of file
diff --git a/jee-7/src/main/java/com/baeldung/batch/understanding/ChunkExceptionSkipReadListener.java b/jee-7/src/main/java/com/baeldung/batch/understanding/ChunkExceptionSkipReadListener.java
new file mode 100644
index 0000000000..ce47de66af
--- /dev/null
+++ b/jee-7/src/main/java/com/baeldung/batch/understanding/ChunkExceptionSkipReadListener.java
@@ -0,0 +1,11 @@
+package com.baeldung.batch.understanding;
+
+import javax.batch.api.chunk.listener.SkipReadListener;
+import javax.inject.Named;
+
+@Named
+public class ChunkExceptionSkipReadListener implements SkipReadListener {
+ @Override
+ public void onSkipReadItem(Exception e) throws Exception {
+ }
+}
\ No newline at end of file
diff --git a/jee-7/src/main/java/com/baeldung/batch/understanding/CustomCheckPoint.java b/jee-7/src/main/java/com/baeldung/batch/understanding/CustomCheckPoint.java
new file mode 100644
index 0000000000..fe6759b365
--- /dev/null
+++ b/jee-7/src/main/java/com/baeldung/batch/understanding/CustomCheckPoint.java
@@ -0,0 +1,12 @@
+package com.baeldung.batch.understanding;
+
+import javax.batch.api.chunk.AbstractCheckpointAlgorithm;
+import javax.inject.Named;
+
+@Named
+public class CustomCheckPoint extends AbstractCheckpointAlgorithm {
+ @Override
+ public boolean isReadyToCheckpoint() throws Exception {
+ return SimpleChunkItemReader.COUNT % 5 == 0;
+ }
+}
diff --git a/jee-7/src/main/java/com/baeldung/batch/understanding/DeciderJobSequence.java b/jee-7/src/main/java/com/baeldung/batch/understanding/DeciderJobSequence.java
new file mode 100644
index 0000000000..6cc2012f23
--- /dev/null
+++ b/jee-7/src/main/java/com/baeldung/batch/understanding/DeciderJobSequence.java
@@ -0,0 +1,14 @@
+package com.baeldung.batch.understanding;
+
+import javax.batch.api.Decider;
+import javax.batch.runtime.StepExecution;
+import javax.inject.Named;
+
+@Named
+public class DeciderJobSequence implements Decider {
+ @Override
+ public String decide(StepExecution[] ses) throws Exception {
+ return "nothing";
+ }
+
+}
\ No newline at end of file
diff --git a/jee-7/src/main/java/com/baeldung/batch/understanding/InjectSimpleBatchLet.java b/jee-7/src/main/java/com/baeldung/batch/understanding/InjectSimpleBatchLet.java
new file mode 100644
index 0000000000..93eb20708d
--- /dev/null
+++ b/jee-7/src/main/java/com/baeldung/batch/understanding/InjectSimpleBatchLet.java
@@ -0,0 +1,20 @@
+package com.baeldung.batch.understanding;
+
+import javax.batch.api.AbstractBatchlet;
+import javax.batch.api.BatchProperty;
+import javax.batch.runtime.BatchStatus;
+import javax.inject.Inject;
+import javax.inject.Named;
+
+@Named
+public class InjectSimpleBatchLet extends AbstractBatchlet {
+ @Inject
+ @BatchProperty(name = "name")
+ private String nameString;
+
+ @Override
+ public String process() throws Exception {
+ System.out.println("Value passed in = " + nameString);
+ return BatchStatus.COMPLETED.toString();
+ }
+}
diff --git a/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleBatchLet.java b/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleBatchLet.java
new file mode 100644
index 0000000000..6a367b064b
--- /dev/null
+++ b/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleBatchLet.java
@@ -0,0 +1,13 @@
+package com.baeldung.batch.understanding;
+
+import javax.batch.api.AbstractBatchlet;
+import javax.batch.runtime.BatchStatus;
+import javax.inject.Named;
+
+@Named
+public class SimpleBatchLet extends AbstractBatchlet {
+ @Override
+ public String process() throws Exception {
+ return BatchStatus.FAILED.toString();
+ }
+}
diff --git a/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleChunkItemProcessor.java b/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleChunkItemProcessor.java
new file mode 100644
index 0000000000..3f8166b6d8
--- /dev/null
+++ b/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleChunkItemProcessor.java
@@ -0,0 +1,12 @@
+package com.baeldung.batch.understanding;
+
+import javax.batch.api.chunk.ItemProcessor;
+import javax.inject.Named;
+
+@Named
+public class SimpleChunkItemProcessor implements ItemProcessor {
+ @Override
+ public Integer processItem(Object t) {
+ return ((Integer) t).intValue() % 2 == 0 ? null : ((Integer) t).intValue();
+ }
+}
diff --git a/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleChunkItemReader.java b/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleChunkItemReader.java
new file mode 100644
index 0000000000..10f81d95d0
--- /dev/null
+++ b/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleChunkItemReader.java
@@ -0,0 +1,27 @@
+package com.baeldung.batch.understanding;
+
+import java.io.Serializable;
+import java.util.StringTokenizer;
+import javax.batch.api.chunk.AbstractItemReader;
+import javax.inject.Named;
+
+@Named
+public class SimpleChunkItemReader extends AbstractItemReader {
+ private StringTokenizer tokens;
+ public static int COUNT = 0;
+
+ @Override
+ public Integer readItem() throws Exception {
+ if (tokens.hasMoreTokens()) {
+ COUNT++;
+ String tempTokenize = tokens.nextToken();
+ return Integer.valueOf(tempTokenize);
+ }
+ return null;
+ }
+
+ @Override
+ public void open(Serializable checkpoint) throws Exception {
+ tokens = new StringTokenizer("1,2,3,4,5,6,7,8,9,10", ",");
+ }
+}
diff --git a/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleChunkItemReaderError.java b/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleChunkItemReaderError.java
new file mode 100644
index 0000000000..92096d0571
--- /dev/null
+++ b/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleChunkItemReaderError.java
@@ -0,0 +1,31 @@
+package com.baeldung.batch.understanding;
+
+import java.io.Serializable;
+import java.util.StringTokenizer;
+
+import javax.batch.api.chunk.AbstractItemReader;
+import javax.inject.Named;
+
+@Named
+public class SimpleChunkItemReaderError extends AbstractItemReader {
+ private StringTokenizer tokens;
+ public static int COUNT = 0;
+
+ @Override
+ public Integer readItem() throws Exception {
+ if (tokens.hasMoreTokens()) {
+ COUNT++;
+ int token = Integer.valueOf(tokens.nextToken());
+ if (token == 3) {
+ throw new RuntimeException("Something happened");
+ }
+ return Integer.valueOf(token);
+ }
+ return null;
+ }
+
+ @Override
+ public void open(Serializable checkpoint) throws Exception {
+ tokens = new StringTokenizer("1,2,3,4,5,6,7,8,9,10", ",");
+ }
+}
\ No newline at end of file
diff --git a/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleChunkWriter.java b/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleChunkWriter.java
new file mode 100644
index 0000000000..909596766d
--- /dev/null
+++ b/jee-7/src/main/java/com/baeldung/batch/understanding/SimpleChunkWriter.java
@@ -0,0 +1,13 @@
+package com.baeldung.batch.understanding;
+
+import java.util.List;
+
+import javax.batch.api.chunk.AbstractItemWriter;
+import javax.inject.Named;
+
+@Named
+public class SimpleChunkWriter extends AbstractItemWriter {
+ @Override
+ public void writeItems(List