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Merge remote-tracking branch 'upstream/master'

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Conflicts:
	software-security/sql-injection-samples/pom.xml
This commit is contained in:
Philippe 2019-04-14 13:30:43 -03:00
commit 6f140cf7c2
324 changed files with 6025 additions and 688 deletions
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5
akka-streams/pom.xml
View File

@ -14,18 +14,19 @@
<dependencies>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-stream_2.11</artifactId>
<artifactId>akka-stream_${scala.version}</artifactId>
<version>${akkastreams.version}</version>
</dependency>
<dependency>
<groupId>com.typesafe.akka</groupId>
<artifactId>akka-stream-testkit_2.11</artifactId>
<artifactId>akka-stream-testkit_${scala.version}</artifactId>
<version>${akkastreams.version}</version>
</dependency>
</dependencies>
<properties>
<akkastreams.version>2.5.2</akkastreams.version>
<scala.version>2.11</scala.version>
</properties>
</project>

84
algorithms-miscellaneous-2/src/main/java/com/baeldung/algorithms/reversingtree/TreeNode.java
View File

@ -1,42 +1,42 @@
package com.baeldung.algorithms.reversingtree;
public class TreeNode {
private int value;
private TreeNode rightChild;
private TreeNode leftChild;
public int getValue() {
return value;
}
public void setValue(int value) {
this.value = value;
}
public TreeNode getRightChild() {
return rightChild;
}
public void setRightChild(TreeNode rightChild) {
this.rightChild = rightChild;
}
public TreeNode getLeftChild() {
return leftChild;
}
public void setLeftChild(TreeNode leftChild) {
this.leftChild = leftChild;
}
public TreeNode(int value, TreeNode rightChild, TreeNode leftChild) {
this.value = value;
this.rightChild = rightChild;
this.leftChild = leftChild;
}
public TreeNode(int value) {
this.value = value;
}
}
package com.baeldung.algorithms.reversingtree;
public class TreeNode {
private int value;
private TreeNode rightChild;
private TreeNode leftChild;
public int getValue() {
return value;
}
public void setValue(int value) {
this.value = value;
}
public TreeNode getRightChild() {
return rightChild;
}
public void setRightChild(TreeNode rightChild) {
this.rightChild = rightChild;
}
public TreeNode getLeftChild() {
return leftChild;
}
public void setLeftChild(TreeNode leftChild) {
this.leftChild = leftChild;
}
public TreeNode(int value, TreeNode leftChild, TreeNode rightChild) {
this.value = value;
this.rightChild = rightChild;
this.leftChild = leftChild;
}
public TreeNode(int value) {
this.value = value;
}
}

121
algorithms-miscellaneous-2/src/main/java/com/baeldung/algorithms/reversingtree/TreeReverser.java
View File

@ -1,68 +1,53 @@
package com.baeldung.algorithms.reversingtree;
import java.util.LinkedList;
public class TreeReverser {
public TreeNode createBinaryTree() {
TreeNode leaf1 = new TreeNode(3);
TreeNode leaf2 = new TreeNode(1);
TreeNode leaf3 = new TreeNode(9);
TreeNode leaf4 = new TreeNode(6);
TreeNode nodeLeft = new TreeNode(2, leaf1, leaf2);
TreeNode nodeRight = new TreeNode(7, leaf3, leaf4);
TreeNode root = new TreeNode(4, nodeRight, nodeLeft);
return root;
}
public void reverseRecursive(TreeNode treeNode) {
if (treeNode == null) {
return;
}
TreeNode temp = treeNode.getLeftChild();
treeNode.setLeftChild(treeNode.getRightChild());
treeNode.setRightChild(temp);
reverseRecursive(treeNode.getLeftChild());
reverseRecursive(treeNode.getRightChild());
}
public void reverseIterative(TreeNode treeNode) {
LinkedList<TreeNode> queue = new LinkedList<TreeNode>();
if (treeNode != null) {
queue.add(treeNode);
}
while (!queue.isEmpty()) {
TreeNode node = queue.poll();
if (node.getLeftChild() != null)
queue.add(node.getLeftChild());
if (node.getRightChild() != null)
queue.add(node.getRightChild());
TreeNode temp = node.getLeftChild();
node.setLeftChild(node.getRightChild());
node.setRightChild(temp);
}
}
public String toString(TreeNode root) {
if (root == null) {
return "";
}
StringBuffer buffer = new StringBuffer(String.valueOf(root.getValue())).append(" ");
buffer.append(toString(root.getLeftChild()));
buffer.append(toString(root.getRightChild()));
return buffer.toString();
}
}
package com.baeldung.algorithms.reversingtree;
import java.util.LinkedList;
public class TreeReverser {
public void reverseRecursive(TreeNode treeNode) {
if (treeNode == null) {
return;
}
TreeNode temp = treeNode.getLeftChild();
treeNode.setLeftChild(treeNode.getRightChild());
treeNode.setRightChild(temp);
reverseRecursive(treeNode.getLeftChild());
reverseRecursive(treeNode.getRightChild());
}
public void reverseIterative(TreeNode treeNode) {
LinkedList<TreeNode> queue = new LinkedList<TreeNode>();
if (treeNode != null) {
queue.add(treeNode);
}
while (!queue.isEmpty()) {
TreeNode node = queue.poll();
if (node.getLeftChild() != null)
queue.add(node.getLeftChild());
if (node.getRightChild() != null)
queue.add(node.getRightChild());
TreeNode temp = node.getLeftChild();
node.setLeftChild(node.getRightChild());
node.setRightChild(temp);
}
}
public String toString(TreeNode root) {
if (root == null) {
return "";
}
StringBuffer buffer = new StringBuffer(String.valueOf(root.getValue())).append(" ");
buffer.append(toString(root.getLeftChild()));
buffer.append(toString(root.getRightChild()));
return buffer.toString();
}
}

80
algorithms-miscellaneous-2/src/test/java/com/baeldung/algorithms/reversingtree/TreeReverserUnitTest.java
View File

@ -1,33 +1,47 @@
package com.baeldung.algorithms.reversingtree;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.Test;
public class TreeReverserUnitTest {
@Test
public void givenTreeWhenReversingRecursivelyThenReversed() {
TreeReverser reverser = new TreeReverser();
TreeNode treeNode = reverser.createBinaryTree();
reverser.reverseRecursive(treeNode);
assertEquals("4 7 9 6 2 3 1", reverser.toString(treeNode)
.trim());
}
@Test
public void givenTreeWhenReversingIterativelyThenReversed() {
TreeReverser reverser = new TreeReverser();
TreeNode treeNode = reverser.createBinaryTree();
reverser.reverseIterative(treeNode);
assertEquals("4 7 9 6 2 3 1", reverser.toString(treeNode)
.trim());
}
}
package com.baeldung.algorithms.reversingtree;
import static org.junit.jupiter.api.Assertions.assertEquals;
import org.junit.jupiter.api.Test;
public class TreeReverserUnitTest {
@Test
public void givenTreeWhenReversingRecursivelyThenReversed() {
TreeReverser reverser = new TreeReverser();
TreeNode treeNode = createBinaryTree();
reverser.reverseRecursive(treeNode);
assertEquals("4 7 9 6 2 3 1", reverser.toString(treeNode)
.trim());
}
@Test
public void givenTreeWhenReversingIterativelyThenReversed() {
TreeReverser reverser = new TreeReverser();
TreeNode treeNode = createBinaryTree();
reverser.reverseIterative(treeNode);
assertEquals("4 7 9 6 2 3 1", reverser.toString(treeNode)
.trim());
}
private TreeNode createBinaryTree() {
TreeNode leaf1 = new TreeNode(1);
TreeNode leaf2 = new TreeNode(3);
TreeNode leaf3 = new TreeNode(6);
TreeNode leaf4 = new TreeNode(9);
TreeNode nodeRight = new TreeNode(7, leaf3, leaf4);
TreeNode nodeLeft = new TreeNode(2, leaf1, leaf2);
TreeNode root = new TreeNode(4, nodeLeft, nodeRight);
return root;
}
}

16
antlr/pom.xml
View File

@ -10,6 +10,14 @@
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>org.antlr</groupId>
<artifactId>antlr4-runtime</artifactId>
<version>${antlr.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
@ -44,13 +52,7 @@
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.antlr</groupId>
<artifactId>antlr4-runtime</artifactId>
<version>${antlr.version}</version>
</dependency>
</dependencies>
<properties>
<antlr.version>4.7.1</antlr.version>
<mojo.version>3.0.0</mojo.version>

30
apache-cxf/sse-jaxrs/sse-jaxrs-client/pom.xml
View File

@ -12,9 +12,18 @@
<version>0.0.1-SNAPSHOT</version>
</parent>
<properties>
<cxf-version>3.2.0</cxf-version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-client</artifactId>
<version>${cxf-version}</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-sse</artifactId>
<version>${cxf-version}</version>
</dependency>
</dependencies>
<build>
<plugins>
@ -45,17 +54,8 @@
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-client</artifactId>
<version>${cxf-version}</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-sse</artifactId>
<version>${cxf-version}</version>
</dependency>
</dependencies>
<properties>
<cxf-version>3.2.0</cxf-version>
</properties>
</project>

54
apache-cxf/sse-jaxrs/sse-jaxrs-server/pom.xml
View File

@ -13,11 +13,28 @@
<version>0.0.1-SNAPSHOT</version>
</parent>
<properties>
<liberty-maven-plugin.version>2.4.2</liberty-maven-plugin.version>
<failOnMissingWebXml>false</failOnMissingWebXml>
<openliberty-version>18.0.0.2</openliberty-version>
</properties>
<dependencies>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.json.bind</groupId>
<artifactId>javax.json.bind-api</artifactId>
<version>1.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>${project.artifactId}</finalName>
@ -59,27 +76,10 @@
</plugins>
</build>
<dependencies>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.enterprise</groupId>
<artifactId>cdi-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.json.bind</groupId>
<artifactId>javax.json.bind-api</artifactId>
<version>1.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<properties>
<liberty-maven-plugin.version>2.4.2</liberty-maven-plugin.version>
<failOnMissingWebXml>false</failOnMissingWebXml>
<openliberty-version>18.0.0.2</openliberty-version>
</properties>
</project>

6
apache-meecrowave/pom.xml
View File

@ -6,6 +6,12 @@
<version>0.0.1</version>
<name>apache-meecrowave</name>
<description>A sample REST API application with Meecrowave</description>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<!-- https://mvnrepository.com/artifact/org.apache.meecrowave/meecrowave-core -->

2
apache-meecrowave/src/test/java/com/baeldung/meecrowave/ArticleEndpointsTest.java → apache-meecrowave/src/test/java/com/baeldung/meecrowave/ArticleEndpointsUnitTest.java
View File

@ -17,7 +17,7 @@ import okhttp3.Request;
import okhttp3.Response;
@RunWith(MonoMeecrowave.Runner.class)
public class ArticleEndpointsTest {
public class ArticleEndpointsUnitTest {
@ConfigurationInject
private Meecrowave.Builder config;

2
azure/README.md
View File

@ -1,4 +1,4 @@
### Relevant Articles:
- [Deploy Spring Boot App to Azure](http://www.baeldung.com/spring-boot-azure)
- [Deploy a Spring Boot App to Azure](http://www.baeldung.com/spring-boot-azure)

4
blade/README.md
View File

@ -1,5 +1,5 @@
### Relevant Articles:
- [Blade - A Complete GuideBook](http://www.baeldung.com/blade)
- [Blade – A Complete Guidebook](http://www.baeldung.com/blade)
Run Integration Tests with `mvn integration-test`
Run Integration Tests with `mvn integration-test`

20
cloud-foundry-uaa/cf-uaa-oauth2-client/pom.xml
View File

@ -2,24 +2,20 @@
<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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>cf-uaa-oauth2-client</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>uaa-client-webapp</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<parent>
<artifactId>parent-boot-2</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-boot-2</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
@ -28,7 +24,6 @@
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-oauth2-client</artifactId>
</dependency>
</dependencies>
<build>
@ -40,4 +35,7 @@
</plugins>
</build>
<properties>
<java.version>1.8</java.version>
</properties>
</project>

23
cloud-foundry-uaa/cf-uaa-oauth2-resource-server/pom.xml
View File

@ -2,24 +2,20 @@
<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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.baeldung.cfuaa</groupId>
<artifactId>cf-uaa-oauth2-resource-server</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>cf-uaa-oauth2-resource-server</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<parent>
<artifactId>parent-boot-2</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../../parent-boot-2</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-oauth2-resource-server</artifactId>
@ -28,7 +24,6 @@
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<build>
@ -40,4 +35,8 @@
</plugins>
</build>
<properties>
<java.version>1.8</java.version>
</properties>
</project>

4
core-groovy/README.md
View File

@ -8,6 +8,8 @@
- [Types of Strings in Groovy](https://www.baeldung.com/groovy-strings)
- [A Quick Guide to Iterating a Map in Groovy](https://www.baeldung.com/groovy-map-iterating)
- [An Introduction to Traits in Groovy](https://www.baeldung.com/groovy-traits)
- [Closures in Groovy](https://www.baeldung.com/groovy-closures)
- [Finding Elements in Collections in Groovy](https://www.baeldung.com/groovy-collections-find-elements)
- [Lists in Groovy](https://www.baeldung.com/groovy-lists)
- [Converting a String to a Date in Groovy](https://www.baeldung.com/groovy-string-to-date)
- [Guide to I/O in Groovy](https://www.baeldung.com/groovy-io)
- [Guide to I/O in Groovy](https://www.baeldung.com/groovy-io)

1
core-java-11/README.md
View File

@ -6,3 +6,4 @@
- [Java 11 Nest Based Access Control](https://www.baeldung.com/java-nest-based-access-control)
- [Exploring the New HTTP Client in Java 9 and 11](https://www.baeldung.com/java-9-http-client)
- [An Introduction to Epsilon GC: A No-Op Experimental Garbage Collector](https://www.baeldung.com/jvm-epsilon-gc-garbage-collector)
- [Guide to jlink](https://www.baeldung.com/jlink)

9
core-java-11/pom.xml
View File

@ -14,6 +14,14 @@
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
@ -31,6 +39,7 @@
<properties>
<maven.compiler.source.version>11</maven.compiler.source.version>
<maven.compiler.target.version>11</maven.compiler.target.version>
<guava.version>27.1-jre</guava.version>
</properties>
</project>

32
core-java-11/src/test/java/com/baeldung/EmptyStringToEmptyOptionalUnitTest.java Normal file
View File

@ -0,0 +1,32 @@
package com.baeldung;
import com.google.common.base.Strings;
import org.junit.Assert;
import org.junit.Test;
import java.util.Optional;
import java.util.function.Predicate;
public class EmptyStringToEmptyOptionalUnitTest {
@Test
public void givenEmptyString_whenFilteringOnOptional_thenEmptyOptionalIsReturned() {
String str = "";
Optional<String> opt = Optional.ofNullable(str).filter(s -> !s.isEmpty());
Assert.assertFalse(opt.isPresent());
}
@Test
public void givenEmptyString_whenFilteringOnOptionalInJava11_thenEmptyOptionalIsReturned() {
String str = "";
Optional<String> opt = Optional.ofNullable(str).filter(Predicate.not(String::isEmpty));
Assert.assertFalse(opt.isPresent());
}
@Test
public void givenEmptyString_whenPassingResultOfEmptyToNullToOfNullable_thenEmptyOptionalIsReturned() {
String str = "";
Optional<String> opt = Optional.ofNullable(Strings.emptyToNull(str));
Assert.assertFalse(opt.isPresent());
}
}

1
core-java-12/pom.xml
View File

@ -34,6 +34,7 @@
<configuration>
<source>${maven.compiler.source.version}</source>
<target>${maven.compiler.target.version}</target>
<compilerArgs>--enable-preview</compilerArgs>
</configuration>
</plugin>
</plugins>

37
core-java-12/src/test/java/com/baeldung/switchExpression/SwitchUnitTest.java Normal file
View File

@ -0,0 +1,37 @@
package com.baeldung.switchExpression;
import org.junit.Assert;
import org.junit.Test;
public class SwitchUnitTest {
@Test
public void switchJava12(){
var month = Month.AUG;
var value = switch(month){
case JAN,JUN, JUL -> 3;
case FEB,SEP, OCT, NOV, DEC -> 1;
case MAR,MAY, APR, AUG -> 2;
};
Assert.assertEquals(value, 2);
}
@Test
public void switchLocalVariable(){
var month = Month.AUG;
int i = switch (month){
case JAN,JUN, JUL -> 3;
case FEB,SEP, OCT, NOV, DEC -> 1;
case MAR,MAY, APR, AUG -> {
int j = month.toString().length() * 4;
break j;
}
};
Assert.assertEquals(12, i);
}
enum Month {JAN, FEB, MAR, APR, MAY, JUN, JUL, AUG, SEP, OCT, NOV, DEC}
}

6
core-java-8-2/README.md Normal file
View File

@ -0,0 +1,6 @@
=========
## Core Java 8 Cookbooks and Examples (part 2)
### Relevant Articles:
- [Anonymous Classes in Java](http://www.baeldung.com/)

43
core-java-8-2/pom.xml Normal file
View File

@ -0,0 +1,43 @@
<?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</groupId>
<artifactId>core-java-8-2</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-8-2</name>
<packaging>jar</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-java</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-java</relativePath>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>${maven.compiler.source}</source>
<target>${maven.compiler.target}</target>
</configuration>
</plugin>
</plugins>
</build>
</project>

15
core-java-8-2/src/main/java/com/baeldung/anonymous/Book.java Normal file
View File

@ -0,0 +1,15 @@
package com.baeldung.anonymous;
public class Book {
final String title;
public Book(String title) {
this.title = title;
}
public String description() {
return "Title: " + title;
}
}

64
core-java-8-2/src/main/java/com/baeldung/anonymous/Main.java Normal file
View File

@ -0,0 +1,64 @@
package com.baeldung.anonymous;
import java.util.ArrayList;
import java.util.List;
/**
* Code snippet that illustrates the usage of anonymous classes.
*
* Note that use of Runnable instances in this example does not demonstrate their
* common use.
*
* @author A. Shcherbakov
*
*/
public class Main {
public static void main(String[] args) {
final List<Runnable> actions = new ArrayList<Runnable>(2);
Runnable action = new Runnable() {
@Override
public void run() {
System.out.println("Hello from runnable.");
}
};
actions.add(action);
Book book = new Book("Design Patterns") {
@Override
public String description() {
return "Famous GoF book.";
}
};
System.out.println(String.format("Title: %s, description: %s", book.title, book.description()));
actions.add(new Runnable() {
@Override
public void run() {
System.out.println("Hello from runnable #2.");
}
});
int count = 1;
Runnable action2 = new Runnable() {
static final int x = 0;
// static int y = 0;
@Override
public void run() {
System.out.println(String.format("Runnable with captured variables: count = %s, x = %s", count, x));
}
};
actions.add(action2);
for (Runnable a : actions) {
a.run();
}
}
}

18
core-java-8-2/src/test/java/com/baeldung/UnitTest.java Normal file
View File

@ -0,0 +1,18 @@
package com.baeldung;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
/**
* Unit test for simple App.
*/
public class UnitTest {
/**
* Stub test
*/
@Test
public void givenPreconditions_whenCondition_shouldResult() {
assertTrue(true);
}
}

2
core-java-8/README.md
View File

@ -3,7 +3,7 @@
## Core Java 8 Cookbooks and Examples
### Relevant Articles:
- [Java 8 Collectors](http://www.baeldung.com/java-8-collectors)
- [Guide to Java 8’s Collectors](http://www.baeldung.com/java-8-collectors)
- [Functional Interfaces in Java 8](http://www.baeldung.com/java-8-functional-interfaces)
- [Java 8 – Powerful Comparison with Lambdas](http://www.baeldung.com/java-8-sort-lambda)
- [New Features in Java 8](http://www.baeldung.com/java-8-new-features)

12
core-java-8/src/main/java/com/baeldung/Adder.java
View File

@ -1,12 +0,0 @@
package com.baeldung;
import java.util.function.Consumer;
import java.util.function.Function;
public interface Adder {
String addWithFunction(Function<String, String> f);
void addWithConsumer(Consumer<Integer> f);
}

18
core-java-8/src/main/java/com/baeldung/AdderImpl.java
View File

@ -1,18 +0,0 @@
package com.baeldung;
import java.util.function.Consumer;
import java.util.function.Function;
public class AdderImpl implements Adder {
@Override
public String addWithFunction(final Function<String, String> f) {
return f.apply("Something ");
}
@Override
public void addWithConsumer(final Consumer<Integer> f) {
}
}

2
core-java-8/src/main/java/com/baeldung/Bar.java → core-java-8/src/main/java/com/baeldung/java8/lambda/tips/Bar.java
View File

@ -1,4 +1,4 @@
package com.baeldung;
package com.baeldung.java8.lambda.tips;
@FunctionalInterface

2
core-java-8/src/main/java/com/baeldung/Baz.java → core-java-8/src/main/java/com/baeldung/java8/lambda/tips/Baz.java
View File

@ -1,4 +1,4 @@
package com.baeldung;
package com.baeldung.java8.lambda.tips;
@FunctionalInterface

2
core-java-8/src/main/java/com/baeldung/Foo.java → core-java-8/src/main/java/com/baeldung/java8/lambda/tips/Foo.java
View File

@ -1,4 +1,4 @@
package com.baeldung;
package com.baeldung.java8.lambda.tips;
@FunctionalInterface

2
core-java-8/src/main/java/com/baeldung/FooExtended.java → core-java-8/src/main/java/com/baeldung/java8/lambda/tips/FooExtended.java
View File

@ -1,4 +1,4 @@
package com.baeldung;
package com.baeldung.java8.lambda.tips;
@FunctionalInterface

12
core-java-8/src/main/java/com/baeldung/java8/lambda/tips/Processor.java Normal file
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@ -0,0 +1,12 @@
package com.baeldung.java8.lambda.tips;
import java.util.concurrent.Callable;
import java.util.function.Supplier;
public interface Processor {
String processWithCallable(Callable<String> c) throws Exception;
String processWithSupplier(Supplier<String> s);
}

20
core-java-8/src/main/java/com/baeldung/java8/lambda/tips/ProcessorImpl.java Normal file
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@ -0,0 +1,20 @@
package com.baeldung.java8.lambda.tips;
import java.util.concurrent.Callable;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;
public class ProcessorImpl implements Processor {
@Override
public String processWithCallable(Callable<String> c) throws Exception {
return c.call();
}
@Override
public String processWithSupplier(Supplier<String> s) {
return s.get();
}
}

2
core-java-8/src/main/java/com/baeldung/UseFoo.java → core-java-8/src/main/java/com/baeldung/java8/lambda/tips/UseFoo.java
View File

@ -1,4 +1,4 @@
package com.baeldung;
package com.baeldung.java8.lambda.tips;
import java.util.function.Function;

8
core-java-8/src/test/java/com/baeldung/java8/Java8FunctionalInteracesLambdasUnitTest.java → core-java-8/src/test/java/com/baeldung/java8/lambda/tips/Java8FunctionalInteracesLambdasUnitTest.java
View File

@ -1,8 +1,8 @@
package com.baeldung.java8;
package com.baeldung.java8.lambda.tips;
import com.baeldung.Foo;
import com.baeldung.FooExtended;
import com.baeldung.UseFoo;
import com.baeldung.java8.lambda.tips.Foo;
import com.baeldung.java8.lambda.tips.FooExtended;
import com.baeldung.java8.lambda.tips.UseFoo;
import org.junit.Before;
import org.junit.Test;

17
core-java-9/README.md
View File

@ -5,26 +5,21 @@
[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)
- [Java 9 Convenience Factory Methods for Collections](http://www.baeldung.com/java-9-collections-factory-methods)
- [Java 9 New Features](https://www.baeldung.com/new-java-9)
- [New Stream Collectors in Java 9](http://www.baeldung.com/java9-stream-collectors)
- [Java 9 CompletableFuture API Improvements](http://www.baeldung.com/java-9-completablefuture)
- [Introduction to Java 9 StackWalking API](http://www.baeldung.com/java-9-stackwalking-api)
- [Introduction to Project Jigsaw](http://www.baeldung.com/project-jigsaw-java-modularity)
- [Java 9 Optional API Additions](http://www.baeldung.com/java-9-optional)
- [Java 9 Reactive Streams](http://www.baeldung.com/java-9-reactive-streams)
- [Java 9 java.util.Objects Additions](http://www.baeldung.com/java-9-objects-new)
- [Java 9 Variable Handles Demistyfied](http://www.baeldung.com/java-variable-handles)
- [Java 9 Variable Handles Demystified](http://www.baeldung.com/java-variable-handles)
- [Exploring the New HTTP Client in Java 9 and 11](http://www.baeldung.com/java-9-http-client)
- [Method Handles in Java](http://www.baeldung.com/java-method-handles)
- [Introduction to Chronicle Queue](http://www.baeldung.com/java-chronicle-queue)
- [A Guide to Java 9 Modularity](http://www.baeldung.com/java-9-modularity)
- [Optional orElse Optional](http://www.baeldung.com/java-optional-or-else-optional)
- [Java 9 java.lang.Module API](http://www.baeldung.com/java-9-module-api)
- [Iterate Through a Range of Dates in Java](https://www.baeldung.com/java-iterate-date-range)
- [Initialize a HashMap in Java](https://www.baeldung.com/java-initialize-hashmap)
- [Java 9 Platform Logging API](https://www.baeldung.com/java-9-logging-api)
- [Immutable Set in Java](https://www.baeldung.com/java-immutable-set)
- [Multi-Release Jar Files](https://www.baeldung.com/java-multi-release-jar)
- [Ahead of Time Compilation (AoT)](https://www.baeldung.com/ahead-of-time-compilation)
- [Java 9 Process API Improvements](https://www.baeldung.com/java-9-process-api)
- [Guide to java.lang.Process API](https://www.baeldung.com/java-process-api)

6
core-java-collections-map/README.md Normal file
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@ -0,0 +1,6 @@
=========
## Core Java Collections 2
### Relevant Articles:
- Java - Copying a HashMap

78
core-java-collections-map/pom.xml Normal file
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@ -0,0 +1,78 @@
<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>
<artifactId>core-java-collections-map</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-collections-map</name>
<packaging>jar</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-java</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-java</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-collections4</artifactId>
<version>${commons-collections4.version}</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version>
</dependency>
<dependency>
<groupId>org.eclipse.collections</groupId>
<artifactId>eclipse-collections</artifactId>
<version>${eclipse.collections.version}</version>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-runner</artifactId>
<version>${junit.platform.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.openjdk.jmh</groupId>
<artifactId>jmh-core</artifactId>
<version>${openjdk.jmh.version}</version>
</dependency>
<dependency>
<groupId>org.openjdk.jmh</groupId>
<artifactId>jmh-generator-annprocess</artifactId>
<version>${openjdk.jmh.version}</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-exec</artifactId>
<version>${commons-exec.version}</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
<scope>provided</scope>
</dependency>
</dependencies>
<properties>
<openjdk.jmh.version>1.19</openjdk.jmh.version>
<junit.platform.version>1.2.0</junit.platform.version>
<commons-lang3.version>3.8.1</commons-lang3.version>
<commons-collections4.version>4.1</commons-collections4.version>
<collections-generic.version>4.01</collections-generic.version>
<avaitility.version>1.7.0</avaitility.version>
<assertj.version>3.11.1</assertj.version>
<eclipse.collections.version>7.1.0</eclipse.collections.version>
<commons-exec.version>1.3</commons-exec.version>
</properties>
</project>

55
core-java-collections-map/src/main/java/com/baeldung/copyinghashmap/CopyHashMap.java Normal file
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@ -0,0 +1,55 @@
package com.baeldung.copyinghashmap;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.stream.Collectors;
import org.apache.commons.lang3.SerializationUtils;
public class CopyHashMap {
public static <String, Employee> HashMap<String, Employee> copyUsingConstructor(HashMap<String, Employee> originalMap) {
return new HashMap<String, Employee>(originalMap);
}
public static <String, Employee> HashMap<String, Employee> copyUsingClone(HashMap<String, Employee> originalMap) {
return (HashMap<String, Employee>) originalMap.clone();
}
public static <String, Employee> HashMap<String, Employee> copyUsingPut(HashMap<String, Employee> originalMap) {
HashMap<String, Employee> shallowCopy = new HashMap<String, Employee>();
Set<Entry<String, Employee>> entries = originalMap.entrySet();
for(Map.Entry<String, Employee> mapEntry: entries) {
shallowCopy.put(mapEntry.getKey(), mapEntry.getValue());
}
return shallowCopy;
}
public static <String, Employee> HashMap<String, Employee> copyUsingPutAll(HashMap<String, Employee> originalMap) {
HashMap<String, Employee> shallowCopy = new HashMap<String, Employee>();
shallowCopy.putAll(originalMap);
return shallowCopy;
}
public static <String, Employee> HashMap<String, Employee> copyUsingJava8Stream(HashMap<String, Employee> originalMap) {
Set<Entry<String, Employee>> entries = originalMap.entrySet();
HashMap<String, Employee> shallowCopy = (HashMap<String, Employee>) entries
.stream()
.collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
return shallowCopy;
}
public static <String, Employee> HashMap<String, Employee> shallowCopy(HashMap<String, Employee> originalMap) {
return (HashMap<String, Employee>) originalMap.clone();
}
public static <String, Employee> HashMap<String, Employee> deepCopy(HashMap<String, Employee> originalMap) {
return SerializationUtils.clone(originalMap);
}
}

77
core-java-collections-map/src/test/java/com/baeldung/copyinghashmap/CopyHashMapUnitTest.java Normal file
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@ -0,0 +1,77 @@
package com.baeldung.copyinghashmap;
import static org.assertj.core.api.Assertions.assertThat;
import java.util.HashMap;
import java.util.Map;
import org.junit.Test;
import com.google.common.collect.ImmutableMap;
public class CopyHashMapUnitTest {
@Test
public void givenHashMap_whenShallowCopy_thenCopyisNotSameAsOriginal() {
HashMap<String, Employee> map = new HashMap<>();
Employee emp1 = new Employee("John");
Employee emp2 = new Employee("Norman");
map.put("emp1",emp1);
map.put("emp2",emp2);
HashMap<String, Employee> shallowCopy = CopyHashMap.shallowCopy(map);
assertThat(shallowCopy).isNotSameAs(map);
}
@Test
public void givenHashMap_whenShallowCopyModifyingOriginalObject_thenCopyShouldChange() {
HashMap<String, Employee> map = new HashMap<>();
Employee emp1 = new Employee("John");
Employee emp2 = new Employee("Norman");
map.put("emp1",emp1);
map.put("emp2",emp2);
HashMap<String, Employee> shallowCopy = CopyHashMap.shallowCopy(map);
emp1.setName("Johny");
assertThat(shallowCopy.get("emp1")).isEqualTo(map.get("emp1"));
}
@Test
public void givenHashMap_whenDeepCopyModifyingOriginalObject_thenCopyShouldNotChange() {
HashMap<String, Employee> map = new HashMap<>();
Employee emp1 = new Employee("John");
Employee emp2 = new Employee("Norman");
map.put("emp1",emp1);
map.put("emp2",emp2);
HashMap<String, Employee> deepCopy = CopyHashMap.deepCopy(map);
emp1.setName("Johny");
assertThat(deepCopy.get("emp1")).isNotEqualTo(map.get("emp1"));
}
@Test
public void givenImmutableMap_whenCopyUsingGuava_thenCopyShouldNotChange() {
Employee emp1 = new Employee("John");
Employee emp2 = new Employee("Norman");
Map<String, Employee> map = ImmutableMap.<String, Employee> builder()
.put("emp1",emp1)
.put("emp2",emp2)
.build();
Map<String, Employee> shallowCopy = ImmutableMap.copyOf(map);
assertThat(shallowCopy).isSameAs(map);
}
}

28
core-java-collections-map/src/test/java/com/baeldung/copyinghashmap/Employee.java Normal file
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@ -0,0 +1,28 @@
package com.baeldung.copyinghashmap;
import java.io.Serializable;
public class Employee implements Serializable{
private String name;
public Employee(String name) {
super();
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public String toString() {
return this.name;
}
}

2
core-java-collections/README.md
View File

@ -3,7 +3,7 @@
## Core Java Collections Cookbooks and Examples
### Relevant Articles:
- [Java - Combine Multiple Collections](http://www.baeldung.com/java-combine-multiple-collections)
- [Java – Combine Multiple Collections](http://www.baeldung.com/java-combine-multiple-collections)
- [HashSet and TreeSet Comparison](http://www.baeldung.com/java-hashset-vs-treeset)
- [Collect a Java Stream to an Immutable Collection](http://www.baeldung.com/java-stream-immutable-collection)
- [Introduction to the Java ArrayDeque](http://www.baeldung.com/java-array-deque)

4
core-java-concurrency-advanced/README.md
View File

@ -12,7 +12,7 @@
- [Guide to the Java Phaser](http://www.baeldung.com/java-phaser)
- [An Introduction to Atomic Variables in Java](http://www.baeldung.com/java-atomic-variables)
- [CyclicBarrier in Java](http://www.baeldung.com/java-cyclic-barrier)
- [Guide to Volatile Keyword in Java](http://www.baeldung.com/java-volatile)
- [Guide to the Volatile Keyword in Java](http://www.baeldung.com/java-volatile)
- [Semaphores in Java](http://www.baeldung.com/java-semaphore)
- [Daemon Threads in Java](http://www.baeldung.com/java-daemon-thread)
- [Priority-based Job Scheduling in Java](http://www.baeldung.com/java-priority-job-schedule)
@ -20,6 +20,6 @@
- [Print Even and Odd Numbers Using 2 Threads](https://www.baeldung.com/java-even-odd-numbers-with-2-threads)
- [Java CyclicBarrier vs CountDownLatch](https://www.baeldung.com/java-cyclicbarrier-countdownlatch)
- [Guide to the Fork/Join Framework in Java](http://www.baeldung.com/java-fork-join)
- [A Guide to ThreadLocalRandom in Java](http://www.baeldung.com/java-thread-local-random)
- [Guide to ThreadLocalRandom in Java](http://www.baeldung.com/java-thread-local-random)
- [The Thread.join() Method in Java](http://www.baeldung.com/java-thread-join)
- [Passing Parameters to Java Threads](https://www.baeldung.com/java-thread-parameters)

6
core-java-concurrency-basic/README.md
View File

@ -7,13 +7,13 @@
- [A Guide to the Java ExecutorService](http://www.baeldung.com/java-executor-service-tutorial)
- [Guide to java.util.concurrent.Future](http://www.baeldung.com/java-future)
- [Difference Between Wait and Sleep in Java](http://www.baeldung.com/java-wait-and-sleep)
- [Guide to Synchronized Keyword in Java](http://www.baeldung.com/java-synchronized)
- [Guide to the Synchronized Keyword in Java](http://www.baeldung.com/java-synchronized)
- [Overview of the java.util.concurrent](http://www.baeldung.com/java-util-concurrent)
- [Implementing a Runnable vs Extending a Thread](http://www.baeldung.com/java-runnable-vs-extending-thread)
- [How to Kill a Java Thread](http://www.baeldung.com/java-thread-stop)
- [ExecutorService - Waiting for Threads to Finish](http://www.baeldung.com/java-executor-wait-for-threads)
- [ExecutorService – Waiting for Threads to Finish](http://www.baeldung.com/java-executor-wait-for-threads)
- [wait and notify() Methods in Java](http://www.baeldung.com/java-wait-notify)
- [Life Cycle of a Thread in Java](http://www.baeldung.com/java-thread-lifecycle)
- [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)
- [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)

4
core-java-io/README.md
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@ -6,7 +6,7 @@
- [How to Read a Large File Efficiently with Java](http://www.baeldung.com/java-read-lines-large-file)
- [Java InputStream to String](http://www.baeldung.com/convert-input-stream-to-string)
- [Java – Write to File](http://www.baeldung.com/java-write-to-file)
- [Java - Convert File to InputStream](http://www.baeldung.com/convert-file-to-input-stream)
- [Java – Convert File to InputStream](http://www.baeldung.com/convert-file-to-input-stream)
- [Java Scanner](http://www.baeldung.com/java-scanner)
- [Java – Byte Array to Writer](http://www.baeldung.com/java-convert-byte-array-to-writer)
- [Java – Directory Size](http://www.baeldung.com/java-folder-size)
@ -14,7 +14,7 @@
- [File Size in Java](http://www.baeldung.com/java-file-size)
- [Comparing getPath(), getAbsolutePath(), and getCanonicalPath() in Java](http://www.baeldung.com/java-path)
- [Using Java MappedByteBuffer](http://www.baeldung.com/java-mapped-byte-buffer)
- [Copy a File with Java](http://www.baeldung.com/java-copy-file)
- [How to Copy a File with Java](http://www.baeldung.com/java-copy-file)
- [Java – Append Data to a File](http://www.baeldung.com/java-append-to-file)
- [FileNotFoundException in Java](http://www.baeldung.com/java-filenotfound-exception)
- [How to Read a File in Java](http://www.baeldung.com/reading-file-in-java)

2
core-java-jvm/README.md
View File

@ -3,4 +3,4 @@
## Core Java JVM Cookbooks and Examples
### Relevant Articles:
- [Method Inlining in the JVM](http://www.baeldung.com/method-inlining-in-the-jvm/)
- [Method Inlining in the JVM](https://www.baeldung.com/jvm-method-inlining)

19
core-java-lambdas/pom.xml Normal file
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@ -0,0 +1,19 @@
<?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>
<artifactId>core-java-lambdas</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java</name>
<packaging>jar</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-java</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-java</relativePath>
</parent>
</project>

88
core-java-lambdas/src/main/java/com/baeldung/lambdas/LambdaVariables.java Normal file
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@ -0,0 +1,88 @@
package com.baeldung.lambdas;
import java.util.Random;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.function.Supplier;
import java.util.stream.IntStream;
/**
* Class with examples about working with capturing lambdas.
*/
public class LambdaVariables {
private volatile boolean run = true;
private int start = 0;
private ExecutorService executor = Executors.newFixedThreadPool(3);
public static void main(String[] args) {
new LambdaVariables().localVariableMultithreading();
}
Supplier<Integer> incrementer(int start) {
return () -> start; // can't modify start parameter inside the lambda
}
Supplier<Integer> incrementer() {
return () -> start++;
}
public void localVariableMultithreading() {
boolean run = true;
executor.execute(() -> {
while (run) {
// do operation
}
});
// commented because it doesn't compile, it's just an example of non-final local variables in lambdas
// run = false;
}
public void instanceVariableMultithreading() {
executor.execute(() -> {
while (run) {
// do operation
}
});
run = false;
}
/**
* WARNING: always avoid this workaround!!
*/
public void workaroundSingleThread() {
int[] holder = new int[] { 2 };
IntStream sums = IntStream
.of(1, 2, 3)
.map(val -> val + holder[0]);
holder[0] = 0;
System.out.println(sums.sum());
}
/**
* WARNING: always avoid this workaround!!
*/
public void workaroundMultithreading() {
int[] holder = new int[] { 2 };
Runnable runnable = () -> System.out.println(IntStream
.of(1, 2, 3)
.map(val -> val + holder[0])
.sum());
new Thread(runnable).start();
// simulating some processing
try {
Thread.sleep(new Random().nextInt(3) * 1000L);
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
holder[0] = 0;
}
}

4
core-java-lang-oop-2/.gitignore vendored Normal file
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@ -0,0 +1,4 @@
target/
.idea/
bin/
*.iml

5
core-java-lang-oop-2/README.md Normal file
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@ -0,0 +1,5 @@
=========
## Core Java Lang OOP 2 Cookbooks and Examples
### Relevant Articles:

27
core-java-lang-oop-2/pom.xml Normal file
View File

@ -0,0 +1,27 @@
<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>core-java-lang-oop-2</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-lang-oop-2</name>
<packaging>jar</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-java</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-java</relativePath>
</parent>
<build>
<finalName>core-java-lang-oop-2</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</build>
</project>

16
core-java-lang-oop-2/src/main/java/com/baeldung/supertypecompilerexception/MyClass.java Normal file
View File

@ -0,0 +1,16 @@
package com.baeldung.supertypecompilerexception;
public class MyClass {
private int myField1 = 10;
private int myField2;
public MyClass() {
//uncomment this to see the supertype compiler error:
//this(myField1);
}
public MyClass(int i) {
myField2 = i;
}
}

15
core-java-lang-oop-2/src/main/java/com/baeldung/supertypecompilerexception/MyClassSolution1.java Normal file
View File

@ -0,0 +1,15 @@
package com.baeldung.supertypecompilerexception;
public class MyClassSolution1 {
private int myField1 = 10;
private int myField2;
public MyClassSolution1() {
myField2 = myField1;
}
public MyClassSolution1(int i) {
myField2 = i;
}
}

19
core-java-lang-oop-2/src/main/java/com/baeldung/supertypecompilerexception/MyClassSolution2.java Normal file
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@ -0,0 +1,19 @@
package com.baeldung.supertypecompilerexception;
public class MyClassSolution2 {
private int myField1 = 10;
private int myField2;
public MyClassSolution2() {
setupMyFields(myField1);
}
public MyClassSolution2(int i) {
setupMyFields(i);
}
private void setupMyFields(int i) {
myField2 = i;
}
}

15
core-java-lang-oop-2/src/main/java/com/baeldung/supertypecompilerexception/MyClassSolution3.java Normal file
View File

@ -0,0 +1,15 @@
package com.baeldung.supertypecompilerexception;
public class MyClassSolution3 {
private static final int SOME_CONSTANT = 10;
private int myField2;
public MyClassSolution3() {
this(SOME_CONSTANT);
}
public MyClassSolution3(int i) {
myField2 = i;
}
}

14
core-java-lang-oop-2/src/main/java/com/baeldung/supertypecompilerexception/MyException.java Normal file
View File

@ -0,0 +1,14 @@
package com.baeldung.supertypecompilerexception;
public class MyException extends RuntimeException {
private int errorCode = 0;
public MyException(String message) {
//uncomment this to see the supertype compiler error:
//super(message + getErrorCode());
}
public int getErrorCode() {
return errorCode;
}
}

2
core-java-lang-oop/README.md
View File

@ -10,7 +10,7 @@
- [How to Make a Deep Copy of an Object in Java](http://www.baeldung.com/java-deep-copy)
- [Guide to Inheritance in Java](http://www.baeldung.com/java-inheritance)
- [Object Type Casting in Java](http://www.baeldung.com/java-type-casting)
- [The "final" Keyword in Java](http://www.baeldung.com/java-final)
- [The “final” Keyword in Java](http://www.baeldung.com/java-final)
- [Type Erasure in Java Explained](http://www.baeldung.com/java-type-erasure)
- [Pass-By-Value as a Parameter Passing Mechanism in Java](http://www.baeldung.com/java-pass-by-value-or-pass-by-reference)
- [Variable and Method Hiding in Java](http://www.baeldung.com/java-variable-method-hiding)

2
core-java-lang/README.md
View File

@ -12,7 +12,7 @@
- [Dynamic Proxies in Java](http://www.baeldung.com/java-dynamic-proxies)
- [Java Double Brace Initialization](http://www.baeldung.com/java-double-brace-initialization)
- [Guide to the Diamond Operator in Java](http://www.baeldung.com/java-diamond-operator)
- [Quick Example - Comparator vs Comparable in Java](http://www.baeldung.com/java-comparator-comparable)
- [Comparator and Comparable in Java](http://www.baeldung.com/java-comparator-comparable)
- [The Java continue and break Keywords](http://www.baeldung.com/java-continue-and-break)
- [Nested Classes in Java](http://www.baeldung.com/java-nested-classes)
- [A Guide to Inner Interfaces in Java](http://www.baeldung.com/java-inner-interfaces)

3
core-java-networking/README.md
View File

@ -14,4 +14,5 @@
- [A Guide to Java Sockets](http://www.baeldung.com/a-guide-to-java-sockets)
- [Guide to Java URL Encoding/Decoding](http://www.baeldung.com/java-url-encoding-decoding)
- [Do a Simple HTTP Request in Java](http://www.baeldung.com/java-http-request)
- [Difference between URL and URI](http://www.baeldung.com/java-url-vs-uri)
- [Difference between URL and URI](http://www.baeldung.com/java-url-vs-uri)
- [Read an InputStream using the Java Server Socket](https://www.baeldung.com/java-inputstream-server-socket)

2
core-java/README.md
View File

@ -29,7 +29,7 @@
- [What is the serialVersionUID?](http://www.baeldung.com/java-serial-version-uid)
- [A Guide to the ResourceBundle](http://www.baeldung.com/java-resourcebundle)
- [Class Loaders in Java](http://www.baeldung.com/java-classloaders)
- [Guide to Java Clock Class](http://www.baeldung.com/java-clock)
- [Guide to the Java Clock Class](http://www.baeldung.com/java-clock)
- [Importance of Main Manifest Attribute in a Self-Executing JAR](http://www.baeldung.com/java-jar-executable-manifest-main-class)
- [Java Global Exception Handler](http://www.baeldung.com/java-global-exception-handler)
- [How to Get the Size of an Object in Java](http://www.baeldung.com/java-size-of-object)

5
core-kotlin-2/README.md
View File

@ -2,5 +2,8 @@
- [Void Type in Kotlin](https://www.baeldung.com/kotlin-void-type)
- [How to use Kotlin Range Expressions](https://www.baeldung.com/kotlin-ranges)
- [Creating a Kotlin Range Iterator on a Custom Object](https://www.baeldung.com/kotlin-custom-range-iterator)
- [Kotlin Scope Functions](https://www.baeldung.com/kotlin-scope-functions)
- [Kotlin Annotations](https://www.baeldung.com/kotlin-annotations)
- [Split a List into Parts in Kotlin](https://www.baeldung.com/kotlin-split-list-into-parts)
- [String Comparison in Kotlin](https://www.baeldung.com/kotlin-string-comparison)
- [String Comparison in Kotlin](https://www.baeldung.com/kotlin-string-comparison)

18
core-kotlin-2/src/main/kotlin/com/baeldung/inputstream/InputStreamExtension.kt Normal file
View File

@ -0,0 +1,18 @@
package com.baeldung.inputstream
import java.io.InputStream
fun InputStream.readUpToChar(stopChar: Char): String {
val stringBuilder = StringBuilder()
var currentChar = this.read().toChar()
while (currentChar != stopChar) {
stringBuilder.append(currentChar)
currentChar = this.read().toChar()
if (this.available() <= 0) {
stringBuilder.append(currentChar)
break
}
}
return stringBuilder.toString()
}

71
core-kotlin-2/src/test/kotlin/com/baeldung/inputstream/InputStreamToStringTest.kt Normal file
View File

@ -0,0 +1,71 @@
package com.baeldung.inputstream
import kotlinx.io.core.use
import org.junit.Test
import java.io.BufferedReader
import java.io.File
import kotlin.test.assertEquals
class InputStreamToStringTest {
private val fileName = "src/test/resources/inputstream2string.txt"
private val fileFullContent = "Computer programming can be a hassle\r\n" +
"It's like trying to take a defended castle"
@Test
fun whenReadFileWithBufferedReader_thenFullFileContentIsReadAsString() {
val file = File(fileName)
val inputStream = file.inputStream()
val content = inputStream.bufferedReader().use(BufferedReader::readText)
assertEquals(fileFullContent, content)
}
@Test
fun whenReadFileWithBufferedReaderReadText_thenFullFileContentIsReadAsString() {
val file = File(fileName)
val inputStream = file.inputStream()
val reader = BufferedReader(inputStream.reader())
var content: String
try {
content = reader.readText()
} finally {
reader.close()
}
assertEquals(fileFullContent, content)
}
@Test
fun whenReadFileWithBufferedReaderManually_thenFullFileContentIsReadAsString() {
val file = File(fileName)
val inputStream = file.inputStream()
val reader = BufferedReader(inputStream.reader())
val content = StringBuilder()
try {
var line = reader.readLine()
while (line != null) {
content.append(line)
line = reader.readLine()
}
} finally {
reader.close()
}
assertEquals(fileFullContent.replace("\r\n", ""), content.toString())
}
@Test
fun whenReadFileUpToStopChar_thenPartBeforeStopCharIsReadAsString() {
val file = File(fileName)
val inputStream = file.inputStream()
val content = inputStream.use { it.readUpToChar(' ') }
assertEquals("Computer", content)
}
@Test
fun whenReadFileWithoutContainingStopChar_thenFullFileContentIsReadAsString() {
val file = File(fileName)
val inputStream = file.inputStream()
val content = inputStream.use { it.readUpToChar('-') }
assertEquals(fileFullContent, content)
}
}

2
core-kotlin-2/src/test/resources/inputstream2string.txt Normal file
View File

@ -0,0 +1,2 @@
Computer programming can be a hassle
It's like trying to take a defended castle

2
core-kotlin/README.md
View File

@ -1,7 +1,7 @@
## Relevant articles:
- [Introduction to the Kotlin Language](http://www.baeldung.com/kotlin)
- [A guide to the “when{}” block in Kotlin](http://www.baeldung.com/kotlin-when)
- [Guide to the “when{}” Block in Kotlin](http://www.baeldung.com/kotlin-when)
- [Comprehensive Guide to Null Safety in Kotlin](http://www.baeldung.com/kotlin-null-safety)
- [Kotlin Java Interoperability](http://www.baeldung.com/kotlin-java-interoperability)
- [Difference Between “==” and “===” operators in Kotlin](http://www.baeldung.com/kotlin-equality-operators)

9
core-kotlin/src/main/kotlin/com/baeldung/kotlin/StringUtil.kt Normal file
View File

@ -0,0 +1,9 @@
@file:JvmName("Strings")
package com.baeldung.kotlin
fun String.escapeForXml() : String {
return this
.replace("&", "&amp;")
.replace("<", "&lt;")
.replace(">", "&gt;")
}

30
core-kotlin/src/test/java/com/baeldung/kotlin/StringUtilUnitTest.java Normal file
View File

@ -0,0 +1,30 @@
package com.baeldung.kotlin;
import kotlin.text.StringsKt;
import org.junit.Assert;
import org.junit.Test;
import static com.baeldung.kotlin.Strings.*;
public class StringUtilUnitTest {
@Test
public void shouldEscapeXmlTagsInString() {
String xml = "<a>hi</a>";
String escapedXml = escapeForXml(xml);
Assert.assertEquals("&lt;a&gt;hi&lt;/a&gt;", escapedXml);
}
@Test
public void callingBuiltInKotlinExtensionMethod() {
String name = "john";
String capitalizedName = StringsKt.capitalize(name);
Assert.assertEquals("John", capitalizedName);
}
}

7
core-kotlin/src/test/kotlin/com/baeldung/kotlin/ExtensionMethods.kt
View File

@ -6,13 +6,6 @@ import org.junit.Test
class ExtensionMethods {
@Test
fun simpleExtensionMethod() {
fun String.escapeForXml() : String {
return this
.replace("&", "&amp;")
.replace("<", "&lt;")
.replace(">", "&gt;")
}
Assert.assertEquals("Nothing", "Nothing".escapeForXml())
Assert.assertEquals("&lt;Tag&gt;", "<Tag>".escapeForXml())
Assert.assertEquals("a&amp;b", "a&b".escapeForXml())

2
couchbase/README.md
View File

@ -3,7 +3,7 @@
### Relevant Articles:
- [Introduction to Couchbase SDK for Java](http://www.baeldung.com/java-couchbase-sdk)
- [Using Couchbase in a Spring Application](http://www.baeldung.com/couchbase-sdk-spring)
- [Asynchronous Batch Opereations in Couchbase](http://www.baeldung.com/async-batch-operations-in-couchbase)
- [Asynchronous Batch Operations in Couchbase](http://www.baeldung.com/async-batch-operations-in-couchbase)
- [Querying Couchbase with MapReduce Views](http://www.baeldung.com/couchbase-query-mapreduce-view)
- [Querying Couchbase with N1QL](http://www.baeldung.com/n1ql-couchbase)

2
gson/README.md
View File

@ -11,6 +11,6 @@
- [Convert JSON to a Map Using Gson](https://www.baeldung.com/gson-json-to-map)
- [Working with Primitive Values in Gson](https://www.baeldung.com/java-gson-primitives)
- [Convert String to JsonObject with Gson](https://www.baeldung.com/gson-string-to-jsonobject)
- [Mapping Multiple JSON Fields to One Java Field](https://www.baeldung.com/json-multiple-fields-single-java-field)
- [Mapping Multiple JSON Fields to a Single Java Field](https://www.baeldung.com/json-multiple-fields-single-java-field)
- [Serializing and Deserializing a List with Gson](https://www.baeldung.com/gson-list)

2
guava-modules/guava-21/README.md
View File

@ -1,4 +1,4 @@
### Relevant articles:
- [New Stream, Comparator and Collector Functionality in Guava 21](http://www.baeldung.com/guava-21-new)
- [New Stream, Comparator and Collector in Guava 21](http://www.baeldung.com/guava-21-new)
- [New in Guava 21 common.util.concurrent](http://www.baeldung.com/guava-21-util-concurrent)
- [Zipping Collections in Java](http://www.baeldung.com/java-collections-zip)

9
helidon/helidon-mp/pom.xml
View File

@ -15,13 +15,18 @@
<dependency>
<groupId>io.helidon.microprofile.bundles</groupId>
<artifactId>helidon-microprofile-1.2</artifactId>
<version>0.10.4</version>
<version>${helidon-microprofile.version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-binding</artifactId>
<version>2.26</version>
<version>${jersey-media-json-binding.version}</version>
</dependency>
</dependencies>
<properties>
<helidon-microprofile.version>0.10.4</helidon-microprofile.version>
<jersey-media-json-binding.version>2.26</jersey-media-json-binding.version>
</properties>
</project>

8
helidon/helidon-se/pom.xml
View File

@ -12,10 +12,6 @@
<version>1.0.0-SNAPSHOT</version>
</parent>
<properties>
<helidon.version>0.10.4</helidon.version>
</properties>
<dependencies>
<!--Config-->
<dependency>
@ -61,4 +57,8 @@
</dependencies>
<properties>
<helidon.version>0.10.4</helidon.version>
</properties>
</project>

2
httpclient/README.md
View File

@ -9,7 +9,7 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
- [HttpClient 4 – Send Custom Cookie](http://www.baeldung.com/httpclient-4-cookies)
- [HttpClient 4 – Get the Status Code](http://www.baeldung.com/httpclient-status-code)
- [HttpClient 4 – Cancel / Abort Request](http://www.baeldung.com/httpclient-cancel-request)
- [HttpClient 4 – Cancel Request](http://www.baeldung.com/httpclient-cancel-request)
- [HttpClient 4 Cookbook](http://www.baeldung.com/httpclient4)
- [Unshorten URLs with HttpClient](http://www.baeldung.com/unshorten-url-httpclient)
- [HttpClient 4 – Follow Redirects for POST](http://www.baeldung.com/httpclient-redirect-on-http-post)

2
jackson/README.md
View File

@ -16,7 +16,7 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
- [Jackson – Bidirectional Relationships](http://www.baeldung.com/jackson-bidirectional-relationships-and-infinite-recursion)
- [Jackson JSON Tutorial](http://www.baeldung.com/jackson)
- [Jackson – Working with Maps and nulls](http://www.baeldung.com/jackson-map-null-values-or-null-key)
- [Jackson – Decide What Fields Get Serialized/Deserializaed](http://www.baeldung.com/jackson-field-serializable-deserializable-or-not)
- [Jackson – Decide What Fields Get Serialized/Deserialized](http://www.baeldung.com/jackson-field-serializable-deserializable-or-not)
- [Jackson Annotation Examples](http://www.baeldung.com/jackson-annotations)
- [Working with Tree Model Nodes in Jackson](http://www.baeldung.com/jackson-json-node-tree-model)
- [Jackson vs Gson](http://www.baeldung.com/jackson-vs-gson)

2
java-collections-maps-2/README.md Normal file
View File

@ -0,0 +1,2 @@
## Relevant Articles:
- [Map of Primitives in Java](https://www.baeldung.com/java-map-primitives)

9
java-collections-maps-2/pom.xml
View File

@ -24,22 +24,25 @@
<dependency>
<groupId>net.sf.trove4j</groupId>
<artifactId>trove4j</artifactId>
<version>3.0.2</version>
<version>${trove4j.version}</version>
</dependency>
<dependency>
<groupId>it.unimi.dsi</groupId>
<artifactId>fastutil</artifactId>
<version>8.1.0</version>
<version>${fastutil.version}</version>
</dependency>
<dependency>
<groupId>colt</groupId>
<artifactId>colt</artifactId>
<version>1.2.0</version>
<version>${colt.version}</version>
</dependency>
</dependencies>
<properties>
<eclipse-collections.version>8.2.0</eclipse-collections.version>
<trove4j.version>3.0.2</trove4j.version>
<fastutil.version>8.1.0</fastutil.version>
<colt.version>1.2.0</colt.version>
</properties>
</project>

2
java-dates-2/README.md Normal file
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@ -0,0 +1,2 @@
## Relevant Articles:
- [Converting Between LocalDate and XMLGregorianCalendar](https://www.baeldung.com/java-localdate-to-xmlgregoriancalendar)

4
java-math/.gitignore vendored Normal file
View File

@ -0,0 +1,4 @@
/target/
.settings/
.classpath
.project

10
java-math/README.md Normal file
View File

@ -0,0 +1,10 @@
## Relevant articles:
- [Calculate Factorial in Java](https://www.baeldung.com/java-calculate-factorial)
- [Generate Combinations in Java](https://www.baeldung.com/java-combinations-algorithm)
- [Check If Two Rectangles Overlap In Java](https://www.baeldung.com/java-check-if-two-rectangles-overlap)
- [Calculate the Distance Between Two Points in Java](https://www.baeldung.com/java-distance-between-two-points)
- [Find the Intersection of Two Lines in Java](https://www.baeldung.com/java-intersection-of-two-lines)
- [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)
- [Convert Latitude and Longitude to a 2D Point in Java](https://www.baeldung.com/java-convert-latitude-longitude)

68
java-math/pom.xml Normal file
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@ -0,0 +1,68 @@
<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>
<artifactId>java-math</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>java-math</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-math3</artifactId>
<version>${commons-math3.version}</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>${commons-codec.version}</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${org.assertj.core.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.github.dpaukov</groupId>
<artifactId>combinatoricslib3</artifactId>
<version>3.3.0</version>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>${exec-maven-plugin.version}</version>
</plugin>
</plugins>
</pluginManagement>
</build>
<properties>
<commons-math3.version>3.6.1</commons-math3.version>
<org.assertj.core.version>3.9.0</org.assertj.core.version>
<commons-codec.version>1.11</commons-codec.version>
<guava.version>27.0.1-jre</guava.version>
</properties>
</project>

0
algorithms-miscellaneous-1/src/main/java/com/baeldung/algorithms/combination/ApacheCommonsCombinationGenerator.java → java-math/src/main/java/com/baeldung/algorithms/combination/ApacheCommonsCombinationGenerator.java
View File

0
algorithms-miscellaneous-1/src/main/java/com/baeldung/algorithms/combination/CombinatoricsLibCombinationGenerator.java → java-math/src/main/java/com/baeldung/algorithms/combination/CombinatoricsLibCombinationGenerator.java
View File

0
algorithms-miscellaneous-1/src/main/java/com/baeldung/algorithms/combination/GuavaCombinationsGenerator.java → java-math/src/main/java/com/baeldung/algorithms/combination/GuavaCombinationsGenerator.java
View File

0
algorithms-miscellaneous-1/src/main/java/com/baeldung/algorithms/combination/IterativeCombinationGenerator.java → java-math/src/main/java/com/baeldung/algorithms/combination/IterativeCombinationGenerator.java
View File

0
algorithms-miscellaneous-1/src/main/java/com/baeldung/algorithms/combination/SelectionRecursiveCombinationGenerator.java → java-math/src/main/java/com/baeldung/algorithms/combination/SelectionRecursiveCombinationGenerator.java
View File

0
algorithms-miscellaneous-1/src/main/java/com/baeldung/algorithms/combination/SetRecursiveCombinationGenerator.java → java-math/src/main/java/com/baeldung/algorithms/combination/SetRecursiveCombinationGenerator.java
View File

0
algorithms-miscellaneous-2/src/main/java/com/baeldung/algorithms/distancebetweenpoints/DistanceBetweenPointsService.java → java-math/src/main/java/com/baeldung/algorithms/distancebetweenpoints/DistanceBetweenPointsService.java
View File

0
algorithms-miscellaneous-1/src/main/java/com/baeldung/algorithms/factorial/Factorial.java → java-math/src/main/java/com/baeldung/algorithms/factorial/Factorial.java
View File

0
algorithms-miscellaneous-1/src/main/java/com/baeldung/algorithms/linesintersection/LinesIntersectionService.java → java-math/src/main/java/com/baeldung/algorithms/linesintersection/LinesIntersectionService.java
View File

0
algorithms-miscellaneous-2/src/main/java/com/baeldung/algorithms/mercator/EllipticalMercator.java → java-math/src/main/java/com/baeldung/algorithms/mercator/EllipticalMercator.java
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0
algorithms-miscellaneous-2/src/main/java/com/baeldung/algorithms/mercator/Mercator.java → java-math/src/main/java/com/baeldung/algorithms/mercator/Mercator.java
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0
algorithms-miscellaneous-2/src/main/java/com/baeldung/algorithms/mercator/SphericalMercator.java → java-math/src/main/java/com/baeldung/algorithms/mercator/SphericalMercator.java
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2
java-numbers/src/main/java/com/baeldung/percentage/PercentageCalculator.java → java-math/src/main/java/com/baeldung/algorithms/percentage/PercentageCalculator.java
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@ -1,4 +1,4 @@
package com.baeldung.percentage;
package com.baeldung.algorithms.percentage;
import java.util.Scanner;

0
algorithms-miscellaneous-2/src/main/java/com/baeldung/algorithms/rectanglesoverlap/Point.java → java-math/src/main/java/com/baeldung/algorithms/rectanglesoverlap/Point.java
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0
algorithms-miscellaneous-2/src/main/java/com/baeldung/algorithms/rectanglesoverlap/Rectangle.java → java-math/src/main/java/com/baeldung/algorithms/rectanglesoverlap/Rectangle.java
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0
algorithms-miscellaneous-2/src/main/java/com/baeldung/algorithms/roundedup/RoundUpToHundred.java → java-math/src/main/java/com/baeldung/algorithms/roundedup/RoundUpToHundred.java
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0
spring-cloud/spring-cloud-kubernetes-2/client-service/src/main/resources/logback.xml → java-math/src/main/resources/logback.xml
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0
algorithms-miscellaneous-1/src/test/java/com/baeldung/algorithms/combination/CombinationUnitTest.java → java-math/src/test/java/com/baeldung/algorithms/combination/CombinationUnitTest.java
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2
algorithms-miscellaneous-2/src/test/java/com/baeldung/algorithms/distancebetweenpoints/DistanceBetweenPointsServiceUnitTest.java → java-math/src/test/java/com/baeldung/algorithms/distancebetweenpoints/DistanceBetweenPointsServiceUnitTest.java
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@ -2,8 +2,6 @@ package com.baeldung.algorithms.distancebetweenpoints;
import org.junit.Test;
import com.baeldung.algorithms.distancebetweenpoints.DistanceBetweenPointsService;
import static org.junit.Assert.assertEquals;
public class DistanceBetweenPointsServiceUnitTest {

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