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Merge branch 'master' of https://github.com/eugenp/tutorials into nguyennamthai-master

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This commit is contained in:
Zeger Hendrikse
2016-12-19 19:18:14 +01:00
parent 1d692a99c4 39cc3511ad
commit f1711af9ce
670 changed files with 197214 additions and 4266 deletions
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annotations/annotation-processing/pom.xml
+1 -1
View File
@@ -15,7 +15,7 @@
<properties>
<auto-service.version>1.0-rc2</auto-service.version>
<maven-compiler-plugin.version>3.5.1</maven-compiler-plugin.version>
<maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
</properties>
<dependencies>
annotations/annotation-user/pom.xml
+7 -2
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@@ -13,6 +13,11 @@
<artifactId>annotation-user</artifactId>
<properties>
<junit.version>4.12</junit.version>
<maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
</properties>
<dependencies>
<dependency>
@@ -24,7 +29,7 @@
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
@@ -37,7 +42,7 @@
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
apache-cxf/README.md
+2
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@@ -0,0 +1,2 @@
## Relevant Articles:
- [Introduction to Apache CXF Aegis Data Binding](http://www.baeldung.com/aegis-data-binding-in-apache-cxf)
apache-cxf/cxf-introduction/pom.xml
+6 -2
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@@ -4,15 +4,18 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>cxf-introduction</artifactId>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>apache-cxf</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<properties>
<cxf.version>3.1.6</cxf.version>
<cxf.version>3.1.8</cxf.version>
<surefire.version>2.19.1</surefire.version>
</properties>
<build>
<plugins>
<plugin>
@@ -24,7 +27,7 @@
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
<version>${surefire.version}</version>
<configuration>
<excludes>
<exclude>**/*LiveTest.java</exclude>
@@ -33,6 +36,7 @@
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.cxf</groupId>
apache-cxf/cxf-jaxrs-implementation/README.md
+2
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@@ -0,0 +1,2 @@
### Relevant Articles:
- [Apache CXF Support for RESTful Web Services](http://www.baeldung.com/apache-cxf-rest-api)
apache-cxf/cxf-jaxrs-implementation/pom.xml
+6 -2
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@@ -4,17 +4,20 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>cxf-jaxrs-implementation</artifactId>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>apache-cxf</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<cxf.version>3.1.7</cxf.version>
<cxf.version>3.1.8</cxf.version>
<httpclient.version>4.5.2</httpclient.version>
<surefire.version>2.19.1</surefire.version>
</properties>
<build>
<plugins>
<plugin>
@@ -26,7 +29,7 @@
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
<version>${surefire.version}</version>
<configuration>
<excludes>
<exclude>**/*LiveTest.java</exclude>
@@ -35,6 +38,7 @@
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.cxf</groupId>
apache-cxf/cxf-spring/pom.xml
+9 -5
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@@ -33,7 +33,7 @@
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<version>${javax.servlet-api.version}</version>
</dependency>
</dependencies>
@@ -41,7 +41,7 @@
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<version>${maven-war-plugin.version}</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
@@ -66,7 +66,7 @@
<plugin>
<groupId>org.codehaus.cargo</groupId>
<artifactId>cargo-maven2-plugin</artifactId>
<version>1.4.19</version>
<version>${cargo-maven2-plugin.version}</version>
<configuration>
<container>
<containerId>tomcat8x</containerId>
@@ -121,9 +121,13 @@
</profiles>
<properties>
<cxf.version>3.1.6</cxf.version>
<spring.version>4.3.1.RELEASE</spring.version>
<cxf.version>3.1.8</cxf.version>
<spring.version>4.3.4.RELEASE</spring.version>
<javax.servlet-api.version>3.1.0</javax.servlet-api.version>
<maven-war-plugin.version>2.6</maven-war-plugin.version>
<surefire.version>2.19.1</surefire.version>
<cargo-maven2-plugin.version>1.6.1</cargo-maven2-plugin.version>
</properties>
</project>
apache-cxf/pom.xml
+12 -3
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@@ -5,20 +5,29 @@
<artifactId>apache-cxf</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<modules>
<module>cxf-introduction</module>
<module>cxf-spring</module>
<module>cxf-jaxrs-implementation</module>
<module>cxf-aegis</module>
</modules>
<properties>
<junit.version>4.12</junit.version>
<maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
<exec-maven-plugin.version>1.5.0</exec-maven-plugin.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<defaultGoal>install</defaultGoal>
<pluginManagement>
@@ -26,7 +35,7 @@
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
@@ -35,7 +44,7 @@
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.5.0</version>
<version>${exec-maven-plugin.version}</version>
</plugin>
</plugins>
</pluginManagement>
apache-fop/pom.xml
+12 -30
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@@ -67,7 +67,7 @@
<dependency>
<groupId>org.apache.xmlgraphics</groupId>
<artifactId>fop</artifactId>
<version>1.1</version>
<version>${fop.version}</version>
<exclusions>
<exclusion>
<groupId>org.apache.avalon.framework</groupId>
@@ -83,18 +83,18 @@
<dependency>
<groupId>avalon-framework</groupId>
<artifactId>avalon-framework-api</artifactId>
<version>4.2.0</version>
<version>${avalon-framework.version}</version>
</dependency>
<dependency>
<groupId>avalon-framework</groupId>
<artifactId>avalon-framework-impl</artifactId>
<version>4.2.0</version>
<version>${avalon-framework.version}</version>
</dependency>
<dependency>
<groupId>org.dbdoclet</groupId>
<artifactId>dbdoclet</artifactId>
<version>8.0.2</version>
<version>${dbdoclet.version}</version>
</dependency>
<dependency>
@@ -108,7 +108,7 @@
<dependency>
<groupId>net.sf.jtidy</groupId>
<artifactId>jtidy</artifactId>
<version>r938</version>
<version>${jtidy.version}</version>
</dependency>
</dependencies>
@@ -187,40 +187,22 @@
</profiles>
<properties>
<!-- persistence -->
<hibernate.version>4.3.11.Final</hibernate.version>
<mysql-connector-java.version>5.1.38</mysql-connector-java.version>
<!-- marshalling -->
<jackson.version>2.7.2</jackson.version>
<fop.version>1.1</fop.version>
<avalon-framework.version>4.3</avalon-framework.version>
<dbdoclet.version>8.0.2</dbdoclet.version>
<jtidy.version>r938</jtidy.version>
<!-- logging -->
<org.slf4j.version>1.7.9</org.slf4j.version>
<logback.version>1.1.2</logback.version>
<!-- various -->
<hibernate-validator.version>5.1.3.Final</hibernate-validator.version>
<!-- util -->
<guava.version>19.0</guava.version>
<commons-lang3.version>3.3.2</commons-lang3.version>
<org.slf4j.version>1.7.21</org.slf4j.version>
<logback.version>1.1.7</logback.version>
<!-- testing -->
<org.hamcrest.version>1.3</org.hamcrest.version>
<junit.version>4.12</junit.version>
<mockito.version>1.10.19</mockito.version>
<httpcore.version>4.4</httpcore.version>
<httpclient.version>4.4</httpclient.version>
<rest-assured.version>2.9.0</rest-assured.version>
<!-- maven plugins -->
<maven-compiler-plugin.version>3.5.1</maven-compiler-plugin.version>
<maven-war-plugin.version>2.6</maven-war-plugin.version>
<maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
<maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
<maven-resources-plugin.version>2.7</maven-resources-plugin.version>
<cargo-maven2-plugin.version>1.4.18</cargo-maven2-plugin.version>
</properties>
aspectj/pom.xml
+132
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@@ -0,0 +1,132 @@
<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</groupId>
<artifactId>aspectj</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>aspectj</name>
<dependencies>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${aspectj.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>${aspectj.version}</version>
</dependency>
<!-- utils -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${org.slf4j.version}</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>${logback.version}</version>
</dependency>
<!-- unit test -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
</dependency>
</dependencies>
<build>
<finalName>aspectj</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>${source.version}</source>
<target>${source.version}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>aspectj-maven-plugin</artifactId>
<version>1.7</version>
<configuration>
<complianceLevel>${source.version}</complianceLevel>
<source>${source.version}</source>
<target>${source.version}</target>
<showWeaveInfo>true</showWeaveInfo>
<verbose>true</verbose>
<Xlint>ignore</Xlint>
<encoding>${project.build.sourceEncoding}</encoding>
<!-- Post-compile weaving -->
<!--
<weaveDependencies>
<weaveDependency>
<groupId>org.agroup</groupId>
<artifactId>to-weave</artifactId>
</weaveDependency>
<weaveDependency>
<groupId>org.anothergroup</groupId>
<artifactId>gen</artifactId>
</weaveDependency>
</weaveDependencies>
-->
</configuration>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>test-compile</goal>
</goals>
</execution>
</executions>
</plugin>
<!--
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.10</version>
<configuration>
<argLine>-javaagent:"${settings.localRepository}"/org/aspectj/aspectjweaver/${aspectj.version}/aspectjweaver-${aspectj.version}.jar</argLine>
<useSystemClassLoader>true</useSystemClassLoader>
<forkMode>always</forkMode>
</configuration>
</plugin>
-->
</plugins>
</build>
<properties>
<source.version>1.8</source.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<aspectj.version>1.8.9</aspectj.version>
<org.slf4j.version>1.7.21</org.slf4j.version>
<logback.version>1.1.7</logback.version>
<maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
<junit.version>4.12</junit.version>
</properties>
</project>
aspectj/src/main/java/com/baeldung/aspectj/Account.java
+13
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@@ -0,0 +1,13 @@
package com.baeldung.aspectj;
public class Account {
int balance = 20;
public boolean withdraw(int amount) {
if (balance < amount) {
return false;
}
balance = balance - amount;
return true;
}
}
aspectj/src/main/java/com/baeldung/aspectj/AccountAspect.aj
+29
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@@ -0,0 +1,29 @@
package com.baeldung.aspectj;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public aspect AccountAspect {
private static final Logger logger = LoggerFactory.getLogger(AccountAspect.class);
final int MIN_BALANCE = 10;
pointcut callWithDraw(int amount, Account account):
call(boolean Account.withdraw(int)) && args(amount) && target(account);
before(int amount, Account account) : callWithDraw(amount, account) {
logger.info(" Balance before withdrawal: {}", account.balance);
logger.info(" Withdraw ammout: {}", amount);
}
boolean around(int amount, Account account) : callWithDraw(amount, account) {
if (account.balance < amount) {
logger.info("Withdrawal Rejected!");
return false;
}
return proceed(amount, account);
}
after(int amount, Account balance) : callWithDraw(amount, balance) {
logger.info("Balance after withdrawal : {}", balance.balance);
}
}
aspectj/src/main/java/com/baeldung/aspectj/Secured.java
+12
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@@ -0,0 +1,12 @@
package com.baeldung.aspectj;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Secured {
public boolean isLocked() default false;
}
aspectj/src/main/java/com/baeldung/aspectj/SecuredMethod.java
+23
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@@ -0,0 +1,23 @@
package com.baeldung.aspectj;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class SecuredMethod {
private static final Logger logger = LoggerFactory.getLogger(SecuredMethod.class);
@Secured(isLocked = true)
public void lockedMethod() throws Exception {
logger.info("lockedMethod");
}
@Secured(isLocked = false)
public void unlockedMethod() {
logger.info("unlockedMethod");
}
public static void main(String[] args) throws Exception {
SecuredMethod sv = new SecuredMethod();
sv.lockedMethod();
}
}
aspectj/src/main/java/com/baeldung/aspectj/SecuredMethodAspect.java
+27
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@@ -0,0 +1,27 @@
package com.baeldung.aspectj;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Aspect
public class SecuredMethodAspect {
private static final Logger logger = LoggerFactory.getLogger(SecuredMethodAspect.class);
@Pointcut("@annotation(secured)")
public void callAt(Secured secured) {
}
@Around("callAt(secured)")
public Object around(ProceedingJoinPoint pjp, Secured secured) throws Throwable {
if (secured.isLocked()) {
logger.info(pjp.getSignature().toLongString() + " is locked");
return null;
} else {
return pjp.proceed();
}
}
}
aspectj/src/main/resources/META-INF/aop.xml
+8
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@@ -0,0 +1,8 @@
<aspectj>
<aspects>
<aspect name="com.baeldung.aspectj.SecuredMethodAspect"/>
<weaver options="-verbose -showWeaveInfo">
<include within="com.baeldung.aspectj.*"/>
</weaver>
</aspects>
</aspectj>
aspectj/src/main/resources/logback.xml
+18
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@@ -0,0 +1,18 @@
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<pattern>%d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg %n</pattern>
</layout>
</appender>
<logger name="com.baeldung.hazelcast" level="INFO" additivity="false">
<appender-ref ref="STDOUT" />
</logger>
<root level="DEBUG">
<appender-ref ref="STDOUT" />
</root>
</configuration>
aspectj/src/test/java/com/baeldung/aspectj/test/AccountTest.java
+27
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@@ -0,0 +1,27 @@
package com.baeldung.aspectj.test;
import static org.junit.Assert.*;
import org.junit.Before;
import org.junit.Test;
import com.baeldung.aspectj.Account;
public class AccountTest {
private Account account;
@Before
public void before() {
account = new Account();
}
@Test
public void givenBalance20AndMinBalance10_whenWithdraw5_thenSuccess() {
assertTrue(account.withdraw(5));
}
@Test
public void givenBalance20AndMinBalance10_whenWithdraw100_thenFail() {
assertFalse(account.withdraw(100));
}
}
aspectj/src/test/java/com/baeldung/aspectj/test/SecuredMethodTest.java
+14
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@@ -0,0 +1,14 @@
package com.baeldung.aspectj.test;
import org.junit.Test;
import com.baeldung.aspectj.SecuredMethod;
public class SecuredMethodTest {
@Test
public void testMethod() throws Exception {
SecuredMethod service = new SecuredMethod();
service.unlockedMethod();
service.lockedMethod();
}
}
assertj/pom.xml
+8 -3
View File
@@ -23,13 +23,13 @@
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>3.5.1</version>
<version>${assertj-core.version}</version>
<scope>test</scope>
</dependency>
@@ -40,7 +40,7 @@
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
@@ -51,6 +51,11 @@
<properties>
<guava.version>19.0</guava.version>
<assertj-guava.version>3.1.0</assertj-guava.version>
<junit.version>4.12</junit.version>
<assertj-core.version>3.6.1</assertj-core.version>
<maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
</properties>
</project>
autovalue/pom.xml
+11 -4
View File
@@ -5,12 +5,13 @@
<artifactId>autovalue-tutorial</artifactId>
<version>1.0</version>
<name>AutoValue</name>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>7</source>
<target>7</target>
@@ -19,19 +20,25 @@
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>com.google.auto.value</groupId>
<artifactId>auto-value</artifactId>
<version>1.2</version>
<version>${auto-value.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.3</version>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<auto-value.version>1.3</auto-value.version>
<junit.version>4.12</junit.version>
<maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
</properties>
</project>
cdi/pom.xml
+7 -4
View File
@@ -22,18 +22,18 @@
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.9</version>
<version>${aspectjweaver.version}</version>
</dependency>
<dependency>
<groupId>org.jboss.weld.se</groupId>
<artifactId>weld-se-core</artifactId>
<version>2.3.5.Final</version>
<version>${weld-se-core.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
@@ -97,7 +97,10 @@
</profile>
</profiles>
<properties>
<spring.version>4.3.1.RELEASE</spring.version>
<spring.version>4.3.4.RELEASE</spring.version>
<aspectjweaver.version>1.8.9</aspectjweaver.version>
<weld-se-core.version>2.4.1.Final</weld-se-core.version>
<junit.version>4.12</junit.version>
<maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
</properties>
core-java-9/README.md
+4 -1
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@@ -2,4 +2,7 @@
## Core Java 9 Examples
http://inprogress.baeldung.com/java-9-new-features/
[Java 9 New Features](http://www.baeldung.com/new-java-9)
### Relevant Articles:
- [Java 9 Stream API Improvements](http://www.baeldung.com/java-9-stream-api)
core-java-9/pom.xml
+1 -3
View File
@@ -76,9 +76,7 @@
<properties>
<!-- logging -->
<org.slf4j.version>1.7.13</org.slf4j.version>
<logback.version>1.0.13</logback.version>
<org.slf4j.version>1.7.21</org.slf4j.version>
<!-- maven plugins -->
<maven-compiler-plugin.version>3.6-jigsaw-SNAPSHOT</maven-compiler-plugin.version>
core-java/.gitignore
+3 -1
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*.ear
# Files generated by integration tests
*.txt
*.txt
/bin/
/temp
core-java/README.md
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- [Java 8 Streams Advanced](http://www.baeldung.com/java-8-streams)
- [Introduction to Thread Pools in Java](http://www.baeldung.com/thread-pool-java-and-guava)
- [Introduction to Java 8 Streams](http://www.baeldung.com/java-8-streams-introduction)
- [Guide to the Fork/Join Framework in Java](http://www.baeldung.com/java-fork-join)
- [Guide to the Fork/Join Framework in Java](http://www.baeldung.com/java-fork-join)
- [How to Print Screen in Java](http://www.baeldung.com/print-screen-in-java)
- [How to Convert String to different data types in Java](http://www.baeldung.com/java-string-conversions)
- [Introduction to Java Generics](http://www.baeldung.com/java-generics)
- [Generate equals() and hashCode() with Eclipse](http://www.baeldung.com/java-eclipse-equals-and-hashcode)
- [A Guide To Java Regular Expressions API](http://www.baeldung.com/regular-expressions-java)
- [Sorting in Java](http://www.baeldung.com/java-sorting)
- [Getting Started with Java Properties](http://www.baeldung.com/java-properties)
- [Grep in Java](http://www.baeldung.com/grep-in-java)
- [Java - Combine Multiple Collections](http://www.baeldung.com/java-combine-multiple-collections)
- [Simulated Annealing for Travelling Salesman Problem](http://www.baeldung.com/java-simulated-annealing-for-traveling-salesman)
core-java/pom.xml
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core-java/src/main/java/com/baeldung/README.md
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### Relevant Articles:
- [SHA-256 Hashing in Java](http://www.baeldung.com/sha-256-hashing-java)
core-java/src/main/java/com/baeldung/algorithms/City.java
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package com.baeldung.algorithms;
import lombok.Data;
@Data
public class City {
private int x;
private int y;
public City() {
this.x = (int) (Math.random() * 500);
this.y = (int) (Math.random() * 500);
}
public double distanceToCity(City city) {
int x = Math.abs(getX() - city.getX());
int y = Math.abs(getY() - city.getY());
return Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2));
}
}
core-java/src/main/java/com/baeldung/algorithms/SimulatedAnnealing.java
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package com.baeldung.algorithms;
public class SimulatedAnnealing {
private static Travel travel = new Travel(10);
public static double simulateAnnealing(double startingTemperature, int numberOfIterations, double coolingRate) {
System.out.println("Starting SA with temperature: " + startingTemperature + ", # of iterations: " + numberOfIterations + " and colling rate: " + coolingRate);
double t = startingTemperature;
travel.generateInitialTravel();
double bestDistance = travel.getDistance();
System.out.println("Initial distance of travel: " + bestDistance);
Travel bestSolution = travel;
Travel currentSolution = bestSolution;
for (int i = 0; i < numberOfIterations; i++) {
if (t > 0.1) {
currentSolution.swapCities();
double currentDistance = currentSolution.getDistance();
if (currentDistance == 0)
continue;
if (currentDistance < bestDistance) {
bestDistance = currentDistance;
} else if (Math.exp((currentDistance - bestDistance) / t) < Math.random()) {
currentSolution.revertSwap();
}
t *= coolingRate;
} else {
continue;
}
if (i % 100 == 0) {
System.out.println("Iteration #" + i);
}
}
return bestDistance;
}
public static void main(String[] args) {
System.out.println("Optimized distance for travel: " + simulateAnnealing(10, 10000, 0.9995));
}
}

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