merge remote

2019-07-18 02:04:55 +03:00
parent feb5b850ff d585745b4d
commit ff1498d5e5
460 changed files with 6980 additions and 3229 deletions
@@ -0,0 +1,3 @@
+## Relevant articles:
+
+- [Negate a Predicate Method Reference with Java 11](https://www.baeldung.com/java-negate-predicate-method-reference)
@@ -0,0 +1,3 @@
+## Relevant articles:
+
+- [String API Updates in Java 12](https://www.baeldung.com/java12-string-api)
@@ -175,7 +175,6 @@

    <properties>
        <!-- util -->
-        <commons-lang3.version>3.5</commons-lang3.version>
        <commons-math3.version>3.6.1</commons-math3.version>
        <commons-collections4.version>4.1</commons-collections4.version>
        <collections-generic.version>4.01</collections-generic.version>
@@ -259,4 +259,15 @@ public class OptionalUnitTest {
        LOG.debug("Getting default value...");
        return "Default Value";
    }
+    
+//    Uncomment code when code base is compatiable with Java 11     
+//    @Test
+//    public void givenAnEmptyOptional_thenIsEmptyBehavesAsExpected() {
+//        Optional<String> opt = Optional.of("Baeldung");
+//        assertFalse(opt.isEmpty());
+//     
+//        opt = Optional.ofNullable(null);
+//        assertTrue(opt.isEmpty());
+//    }
+
 }
@@ -0,0 +1,71 @@
+package com.baeldung.array;
+
+import com.baeldung.arraycopy.model.Employee;
+
+public class SortedArrayChecker {
+    boolean isSorted(int[] array, int length) {
+        if (array == null || length < 2)
+            return true;
+
+        if (array[length - 2] > array[length - 1])
+            return false;
+
+        return isSorted(array, length - 1);
+    }
+
+    boolean isSorted(int[] array) {
+        for (int i = 0; i < array.length - 1; i++) {
+            if (array[i] > array[i + 1])
+                return false;
+        }
+
+        return true;
+    }
+
+    boolean isSorted(String[] array, int length) {
+        if (array == null || length < 2)
+            return true;
+
+        if (array[length - 2].compareTo(array[length - 1]) > 0)
+            return false;
+
+        return isSorted(array, length - 1);
+    }
+
+boolean isSorted(String[] array) {
+    for (int i = 0; i < array.length - 1; ++i) {
+        if (array[i].compareTo(array[i + 1]) > 0)
+            return false;
+    }
+
+    return true;
+}
+
+    boolean isSortedByName(Employee[] array) {
+        for (int i = 0; i < array.length - 1; ++i) {
+            if (array[i].getName().compareTo(array[i + 1].getName()) > 0)
+                return false;
+        }
+
+        return true;
+    }
+
+boolean isSortedByAge(Employee[] array) {
+    for (int i = 0; i < array.length - 1; ++i) {
+        if (array[i].getAge() > (array[i + 1].getAge()))
+            return false;
+    }
+
+    return true;
+}
+
+    boolean isSortedByAge(Employee[] array, int length) {
+        if (array == null || length < 2)
+            return true;
+
+        if (array[length - 2].getAge() > array[length - 1].getAge())
+            return false;
+
+        return isSortedByAge(array, length - 1);
+    }
+}
@@ -6,6 +6,7 @@ public class Employee implements Serializable {
    private static final long serialVersionUID = -2454619097207585825L;
    private int id;
    private String name;
+    private int age;

    public Employee() {
    }
@@ -15,10 +16,24 @@ public class Employee implements Serializable {
        this.name = name;
    }

+    public Employee(int id, String name, int age) {
+        this.id = id;
+        this.name = name;
+        this.age = age;
+    }
+
+    public int getAge() {
+        return age;
+    }
+
    public int getId() {
        return id;
    }

+    public void setAge(int age) {
+        this.age = age;
+    }
+
    public void setId(int id) {
        this.id = id;
    }
@@ -0,0 +1,73 @@
+package com.baeldung.array;
+
+import com.baeldung.arraycopy.model.Employee;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class SortedArrayCheckerUnitTest {
+
+    private static final int[] INTEGER_SORTED = {1, 3, 5, 7, 9};
+    private static final int[] INTEGER_NOT_SORTED = {1, 3, 11, 7};
+
+    private static final String[] STRING_SORTED = {"abc", "cde", "fgh"};
+    private static final String[] STRING_NOT_SORTED = {"abc", "fgh", "cde", "ijk"};
+
+    private final Employee[] EMPLOYEES_SORTED_BY_NAME = {
+            new Employee(1, "Carlos", 26),
+            new Employee(2, "Daniel", 31),
+            new Employee(3, "Marta", 27)};
+
+    private final Employee[] EMPLOYEES_NOT_SORTED_BY_NAME = {
+            new Employee(1, "Daniel", 31),
+            new Employee(2, "Carlos", 26),
+            new Employee(3, "Marta", 27)};
+
+    private final Employee[] EMPLOYEES_SORTED_BY_AGE = {
+            new Employee(1, "Carlos", 26),
+            new Employee(2, "Marta", 27),
+            new Employee(3, "Daniel", 31)};
+
+    private final Employee[] EMPLOYEES_NOT_SORTED_BY_AGE = {
+            new Employee(1, "Marta", 27),
+            new Employee(2, "Carlos", 26),
+            new Employee(3, "Daniel", 31)};
+
+    private SortedArrayChecker sortedArrayChecker;
+
+    @Before
+    public void setup() {
+        sortedArrayChecker = new SortedArrayChecker();
+    }
+
+    @Test
+    public void givenIntegerArray_thenReturnIfItIsSortedOrNot() {
+        assertThat(sortedArrayChecker.isSorted(INTEGER_SORTED)).isEqualTo(true);
+        assertThat(sortedArrayChecker.isSorted(INTEGER_NOT_SORTED)).isEqualTo(false);
+
+        assertThat(sortedArrayChecker.isSorted(INTEGER_SORTED, INTEGER_SORTED.length)).isEqualTo(true);
+        assertThat(sortedArrayChecker.isSorted(INTEGER_NOT_SORTED, INTEGER_NOT_SORTED.length)).isEqualTo(false);
+    }
+
+    @Test
+    public void givenStringArray_thenReturnIfItIsSortedOrNot() {
+        assertThat(sortedArrayChecker.isSorted(STRING_SORTED)).isEqualTo(true);
+        assertThat(sortedArrayChecker.isSorted(STRING_NOT_SORTED)).isEqualTo(false);
+
+        assertThat(sortedArrayChecker.isSorted(STRING_SORTED, STRING_SORTED.length)).isEqualTo(true);
+        assertThat(sortedArrayChecker.isSorted(STRING_NOT_SORTED, STRING_NOT_SORTED.length)).isEqualTo(false);
+    }
+
+    @Test
+    public void givenEmployeeArray_thenReturnIfItIsSortedOrNot() {
+        assertThat(sortedArrayChecker.isSortedByName(EMPLOYEES_SORTED_BY_NAME)).isEqualTo(true);
+        assertThat(sortedArrayChecker.isSortedByName(EMPLOYEES_NOT_SORTED_BY_NAME)).isEqualTo(false);
+
+        assertThat(sortedArrayChecker.isSortedByAge(EMPLOYEES_SORTED_BY_AGE)).isEqualTo(true);
+        assertThat(sortedArrayChecker.isSortedByAge(EMPLOYEES_NOT_SORTED_BY_AGE)).isEqualTo(false);
+
+        assertThat(sortedArrayChecker.isSortedByAge(EMPLOYEES_SORTED_BY_AGE, EMPLOYEES_SORTED_BY_AGE.length)).isEqualTo(true);
+        assertThat(sortedArrayChecker.isSortedByAge(EMPLOYEES_NOT_SORTED_BY_AGE, EMPLOYEES_NOT_SORTED_BY_AGE.length)).isEqualTo(false);
+    }
+}
@@ -42,7 +42,7 @@ public class CoreJavaCollectionsUnitTest {
    @Test(expected = UnsupportedOperationException.class)
    public final void givenUsingGuavaBuilder_whenUnmodifiableListIsCreatedFromOriginal_thenNoLongerModifiable() {
        final List<String> list = new ArrayList<String>(Arrays.asList("one", "two", "three"));
-        final ImmutableList<Object> unmodifiableList = ImmutableList.builder().addAll(list).build();
+        final ImmutableList<String> unmodifiableList = ImmutableList.<String>builder().addAll(list).build();
        unmodifiableList.add("four");
    }

@@ -72,7 +72,6 @@
    <properties>
        <!-- util -->
        <guava.version>21.0</guava.version>
-        <commons-lang3.version>3.5</commons-lang3.version>
        <commons-math3.version>3.6.1</commons-math3.version>
        <commons-collections4.version>4.1</commons-collections4.version>
        <collections-generic.version>4.01</collections-generic.version>
@@ -17,3 +17,4 @@
 - [Runnable vs. Callable in Java](http://www.baeldung.com/java-runnable-callable)
 - [What is Thread-Safety and How to Achieve it?](https://www.baeldung.com/java-thread-safety)
 - [How to Start a Thread in Java](https://www.baeldung.com/java-start-thread)
+- [How to Delay Code Execution in Java](https://www.baeldung.com/java-delay-code-execution)
@@ -45,8 +45,6 @@
    </build>

    <properties>
-        <!-- util -->
-        <commons-lang3.version>3.5</commons-lang3.version>
        <!-- testing -->
        <assertj.version>3.6.1</assertj.version>
        <avaitility.version>1.7.0</avaitility.version>
@@ -62,7 +62,6 @@
    <properties>
        <!-- util -->
        <guava.version>21.0</guava.version>
-        <commons-lang3.version>3.5</commons-lang3.version>
        <commons-math3.version>3.6.1</commons-math3.version>
        <commons-collections4.version>4.1</commons-collections4.version>
        <collections-generic.version>4.01</collections-generic.version>
@@ -0,0 +1,3 @@
+## Relevant articles:
+
+- [Will an Error Be Caught by Catch Block in Java?](https://www.baeldung.com/java-error-catch)
@@ -266,8 +266,7 @@
    <properties>

        <!-- util -->
-        <commons-lang3.version>3.5</commons-lang3.version>
-        <bouncycastle.version>1.60</bouncycastle.version>
+        <bouncycastle.version>1.55</bouncycastle.version>
        <commons-codec.version>1.10</commons-codec.version>
        <commons-math3.version>3.6.1</commons-math3.version>
        <decimal4j.version>1.0.3</decimal4j.version>
@@ -283,7 +282,7 @@
        <!-- sftp -->
        <jsch.version>0.1.55</jsch.version>
        <sshj.version>0.27.0</sshj.version>
-        <vfs.version>2.3</vfs.version>        
+        <vfs.version>2.4</vfs.version>        
        <!-- testing -->
        <assertj.version>3.6.1</assertj.version>
        <avaitility.version>1.7.0</avaitility.version>
@@ -35,7 +35,6 @@
    </dependencies>

    <properties>
-        <commons-lang3.version>3.5</commons-lang3.version>
        <assertj.version>3.6.1</assertj.version>
    </properties>
 </project>
@@ -0,0 +1,3 @@
+## Relevant articles:
+
+- [Why Do Local Variables Used in Lambdas Have to Be Final or Effectively Final?](https://www.baeldung.com/java-lambda-effectively-final-local-variables)
@@ -75,13 +75,7 @@
    </build>

    <properties>
-        
-        <!-- marshalling -->
-        <jackson.version>2.8.5</jackson.version>
        <gson.version>2.8.2</gson.version>
-
-        <!-- util -->
-        <commons-lang3.version>3.5</commons-lang3.version>
        <!-- testing -->
        <assertj-core.version>3.10.0</assertj-core.version>
        <equalsverifier.version>3.0.3</equalsverifier.version>
@@ -75,9 +75,6 @@

    <properties>
        <gson.version>2.8.2</gson.version>
-
-        <!-- util -->
-        <commons-lang3.version>3.5</commons-lang3.version>
        
        <javax.mail.version>1.5.0-b01</javax.mail.version>
        
@@ -42,8 +42,6 @@

    <properties>
        <javax.mail.version>1.5.0-b01</javax.mail.version>
-        <commons-io.version>2.5</commons-io.version>
-        <commons-lang3.version>3.5</commons-lang3.version>
        <springframework.spring-web.version>4.3.4.RELEASE</springframework.spring-web.version>
    </properties>	
 </project>
@@ -19,12 +19,12 @@
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
-            <version>${h2database.version}</version>
+            <version>${h2.version}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
-            <version>${jackson.databind.version}</version>
+            <version>${jackson.version}</version>
        </dependency>
    </dependencies>

@@ -48,7 +48,5 @@
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <hibernate.core.version>5.4.0.Final</hibernate.core.version>
-        <h2database.version>1.4.197</h2database.version>
-        <jackson.databind.version>2.9.8</jackson.databind.version>
    </properties>
 </project>
@@ -68,7 +68,6 @@

    <properties>
        <!-- util -->
-        <commons-lang3.version>3.5</commons-lang3.version>
        <commons-collections4.version>4.1</commons-collections4.version>
        <collections-generic.version>4.01</collections-generic.version>
    
@@ -23,11 +23,4 @@
       
    </dependencies>

-    <properties>
-
-        <!-- util -->
-        <commons-lang3.version>3.8.1</commons-lang3.version>
-      
-    </properties>
-
 </project>
@@ -43,7 +43,6 @@
    <properties>

        <!-- util -->
-        <commons-lang3.version>3.8.1</commons-lang3.version>
        <bouncycastle.version>1.60</bouncycastle.version>
        <commons-codec.version>1.11</commons-codec.version>

@@ -264,7 +264,6 @@

        <!-- util -->
        <guava.version>23.0</guava.version>
-        <commons-lang3.version>3.5</commons-lang3.version>
        <bouncycastle.version>1.55</bouncycastle.version>
        <commons-codec.version>1.10</commons-codec.version>
        <commons-math3.version>3.6.1</commons-math3.version>
@@ -113,7 +113,7 @@
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
-            <version>${h2database.version}</version>
+            <version>${h2.version}</version>
        </dependency>
        <!-- instrumentation -->
        <dependency>
@@ -453,8 +453,6 @@
        <gson.version>2.8.2</gson.version>

        <!-- util -->
-        <commons-lang3.version>3.9</commons-lang3.version>
-        <commons-io.version>2.5</commons-io.version>
        <commons-math3.version>3.6.1</commons-math3.version>
        <decimal4j.version>1.0.3</decimal4j.version>
        <unix4j.version>0.4</unix4j.version>
@@ -471,7 +469,6 @@
        <maven-surefire-plugin.version>2.21.0</maven-surefire-plugin.version>
        
        <javamoney.moneta.version>1.1</javamoney.moneta.version>
-        <h2database.version>1.4.197</h2database.version>
        <esapi.version>2.1.0.1</esapi.version>
        <jmh-core.version>1.19</jmh-core.version>
       
@@ -1,15 +1,16 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" 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">
    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung.daomodule</groupId>
+    <artifactId>daomodule</artifactId>
+    <version>1.0</version>
+    <packaging>jar</packaging>
+    
    <parent>
        <groupId>com.baeldung.multimodulemavenproject</groupId>
        <artifactId>multimodulemavenproject</artifactId>
        <version>1.0</version>
    </parent>
-    <groupId>com.baeldung.daomodule</groupId>
-    <artifactId>daomodule</artifactId>
-    <version>1.0</version>
-    <packaging>jar</packaging>
    
    <build>
        <plugins>