Merge branch 'master' into update-links

This commit is contained in:
Loredana Crusoveanu 2019-04-15 23:58:45 +03:00 committed by GitHub
commit f13556c83a
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320 changed files with 6087 additions and 582 deletions

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@ -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>

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@ -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>

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@ -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>

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@ -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>

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@ -7,6 +7,12 @@
<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 -->
<dependency>

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@ -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;

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@ -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)

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@ -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`

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@ -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>

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@ -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>

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@ -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)

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@ -0,0 +1,44 @@
package com.baeldung.strings
import spock.lang.Specification
import java.util.regex.Pattern
class StringMatchingSpec extends Specification {
def "pattern operator example"() {
given: "a pattern"
def p = ~'foo'
expect:
p instanceof Pattern
and: "you can use slash strings to avoid escaping of blackslash"
def digitPattern = ~/\d*/
digitPattern.matcher('4711').matches()
}
def "match operator example"() {
expect:
'foobar' ==~ /.*oba.*/
and: "matching is strict"
!('foobar' ==~ /foo/)
}
def "find operator example"() {
when: "using the find operator"
def matcher = 'foo and bar, baz and buz' =~ /(\w+) and (\w+)/
then: "will find groups"
matcher.size() == 2
and: "can access groups using array"
matcher[0][0] == 'foo and bar'
matcher[1][2] == 'buz'
and: "you can use it as a predicate"
'foobarbaz' =~ /bar/
}
}

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@ -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)

6
core-java-8-2/README.md Normal file
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@ -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
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@ -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>

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@ -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;
}
}

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@ -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();
}
}
}

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@ -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);
}
}

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@ -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 8s 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)

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@ -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);
}

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@ -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) {
}
}

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

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

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

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

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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);
}

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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();
}
}

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

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@ -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;

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@ -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)

View File

@ -0,0 +1,6 @@
=========
## Core Java Collections 2
### Relevant Articles:
- Java - Copying a HashMap

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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>

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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);
}
}

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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);
}
}

View File

@ -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;
}
}

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)

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)

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)

View File

@ -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)

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
View File

@ -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>

View File

@ -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;
}
}

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)

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)

View File

@ -15,3 +15,4 @@
- [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)
- [Read an InputStream using the Java Server Socket](https://www.baeldung.com/java-inputstream-server-socket)

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)

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)

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()
}

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)
}
}

View File

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

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)

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;")
}

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);
}
}

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())

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)

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)

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)

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>

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>

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)

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)

View File

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

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
View File

@ -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>

View File

@ -1,4 +1,4 @@
package com.baeldung.percentage;
package com.baeldung.algorithms.percentage;
import java.util.Scanner;

View File

@ -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 {

View File

@ -1,4 +1,4 @@
package com.baeldung.percentage;
package com.baeldung.algorithms.percentage;
import org.junit.Assert;
import org.junit.Test;

View File

@ -4,9 +4,6 @@ import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertFalse;
import org.junit.Test;
import com.baeldung.algorithms.rectanglesoverlap.Point;
import com.baeldung.algorithms.rectanglesoverlap.Rectangle;
public class RectangleUnitTest {
@Test

View File

@ -4,36 +4,47 @@
<groupId>com.baeldung.javastreams2</groupId>
<artifactId>javastreams2</artifactId>
<version>1.0</version>
<name>Stream Reduce</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.openjdk.jmh</groupId>
<artifactId>jmh-core</artifactId>
<version>1.21</version>
<version>${jmh.version}</version>
</dependency>
<dependency>
<groupId>org.openjdk.jmh</groupId>
<artifactId>jmh-generator-annprocess</artifactId>
<version>1.21</version>
<version>${jmh.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<version>${junit.version}</version>
<scope>test</scope>
<type>jar</type>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>3.11.1</version>
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<name>Stream Reduce</name>
<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>
<jmh.version>1.21</jmh.version>
<assertj.version>3.11.1</assertj.version>
</properties>
</project>

View File

@ -8,7 +8,7 @@
- [Java 8 and Infinite Streams](http://www.baeldung.com/java-inifinite-streams)
- [Java 8 Stream findFirst() vs. findAny()](http://www.baeldung.com/java-stream-findfirst-vs-findany)
- [How to Get the Last Element of a Stream in Java?](http://www.baeldung.com/java-stream-last-element)
- [Stream has already been operated upon or closed” Exception in Java](http://www.baeldung.com/java-stream-operated-upon-or-closed-exception)
- [Stream has already been operated upon or closed” Exception in Java](http://www.baeldung.com/java-stream-operated-upon-or-closed-exception)
- [Iterable to Stream in Java](http://www.baeldung.com/java-iterable-to-stream)
- [How to Iterate Over a Stream With Indices](http://www.baeldung.com/java-stream-indices)
- [Primitive Type Streams in Java 8](http://www.baeldung.com/java-8-primitive-streams)

View File

@ -18,91 +18,6 @@
<!-- jhipster-needle-distribution-management -->
<properties>
<!-- Build properties -->
<maven.version>3.0.0</maven.version>
<java.version>1.8</java.version>
<scala.version>2.12.6</scala.version>
<node.version>v10.15.0</node.version>
<npm.version>6.4.1</npm.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<project.testresult.directory>${project.build.directory}/test-results</project.testresult.directory>
<maven.build.timestamp.format>yyyyMMddHHmmss</maven.build.timestamp.format>
<maven.compiler.source>${java.version}</maven.compiler.source>
<maven.compiler.target>${java.version}</maven.compiler.target>
<argLine>-Djava.security.egd=file:/dev/./urandom -Xmx256m</argLine>
<m2e.apt.activation>jdt_apt</m2e.apt.activation>
<run.addResources>false</run.addResources>
<!-- These remain empty unless the corresponding profile is active -->
<profile.no-liquibase />
<profile.swagger />
<profile.tls />
<!-- Dependency versions -->
<jhipster-dependencies.version>2.1.1</jhipster-dependencies.version>
<!-- The spring-boot version should match the one managed by
https://mvnrepository.com/artifact/io.github.jhipster/jhipster-dependencies/${jhipster-dependencies.version} -->
<spring-boot.version>2.0.8.RELEASE</spring-boot.version>
<!-- The hibernate version should match the one managed by
https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-dependencies/${spring-boot.version} -->
<hibernate.version>5.2.17.Final</hibernate.version>
<!-- The javassist version should match the one managed by
https://mvnrepository.com/artifact/org.hibernate/hibernate-core/${hibernate.version} -->
<javassist.version>3.22.0-GA</javassist.version>
<!-- The liquibase version should match the one managed by
https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-dependencies/${spring-boot.version} -->
<liquibase.version>3.5.5</liquibase.version>
<liquibase-hibernate5.version>3.6</liquibase-hibernate5.version>
<validation-api.version>2.0.1.Final</validation-api.version>
<mapstruct.version>1.2.0.Final</mapstruct.version>
<!-- Plugin versions -->
<maven-clean-plugin.version>3.1.0</maven-clean-plugin.version>
<maven-compiler-plugin.version>3.8.0</maven-compiler-plugin.version>
<maven-eclipse-plugin.version>2.10</maven-eclipse-plugin.version>
<maven-enforcer-plugin.version>3.0.0-M2</maven-enforcer-plugin.version>
<maven-idea-plugin.version>2.2.1</maven-idea-plugin.version>
<maven-resources-plugin.version>3.1.0</maven-resources-plugin.version>
<maven-surefire-plugin.version>2.22.1</maven-surefire-plugin.version>
<maven-war-plugin.version>3.2.2</maven-war-plugin.version>
<jib-maven-plugin.version>0.9.11</jib-maven-plugin.version>
<frontend-maven-plugin.version>1.6</frontend-maven-plugin.version>
<jacoco-maven-plugin.version>0.8.2</jacoco-maven-plugin.version>
<lifecycle-mapping.version>1.0.0</lifecycle-mapping.version>
<scala-maven-plugin.version>3.4.2</scala-maven-plugin.version>
<sonar-maven-plugin.version>3.5.0.1254</sonar-maven-plugin.version>
<git-commit-id-plugin.version>2.2.5</git-commit-id-plugin.version>
<!-- Sonar properties -->
<sonar.host.url>http://localhost:9001</sonar.host.url>
<sonar.exclusions>src/main/webapp/content/**/*.*, src/main/webapp/i18n/*.js, target/www/**/*.*</sonar.exclusions>
<sonar.issue.ignore.multicriteria>S3437,S4502,S4684,UndocumentedApi,BoldAndItalicTagsCheck</sonar.issue.ignore.multicriteria>
<!-- Rule https://sonarcloud.io/coding_rules?open=Web%3ABoldAndItalicTagsCheck&rule_key=Web%3ABoldAndItalicTagsCheck is ignored. Even if we agree that using the "i" tag is an awful practice, this is what is recommended by http://fontawesome.io/examples/ -->
<sonar.issue.ignore.multicriteria.BoldAndItalicTagsCheck.resourceKey>src/main/webapp/app/**/*.*</sonar.issue.ignore.multicriteria.BoldAndItalicTagsCheck.resourceKey>
<sonar.issue.ignore.multicriteria.BoldAndItalicTagsCheck.ruleKey>Web:BoldAndItalicTagsCheck</sonar.issue.ignore.multicriteria.BoldAndItalicTagsCheck.ruleKey>
<!-- Rule https://sonarcloud.io/coding_rules?open=squid%3AS3437&rule_key=squid%3AS3437 is ignored, as a JPA-managed field cannot be transient -->
<sonar.issue.ignore.multicriteria.S3437.resourceKey>src/main/java/**/*</sonar.issue.ignore.multicriteria.S3437.resourceKey>
<sonar.issue.ignore.multicriteria.S3437.ruleKey>squid:S3437</sonar.issue.ignore.multicriteria.S3437.ruleKey>
<!-- Rule https://sonarcloud.io/coding_rules?open=squid%3AUndocumentedApi&rule_key=squid%3AUndocumentedApi is ignored, as we want to follow "clean code" guidelines and classes, methods and arguments names should be self-explanatory -->
<sonar.issue.ignore.multicriteria.UndocumentedApi.resourceKey>src/main/java/**/*</sonar.issue.ignore.multicriteria.UndocumentedApi.resourceKey>
<sonar.issue.ignore.multicriteria.UndocumentedApi.ruleKey>squid:UndocumentedApi</sonar.issue.ignore.multicriteria.UndocumentedApi.ruleKey>
<!-- Rule https://sonarcloud.io/coding_rules?open=squid%3AS4502&rule_key=squid%3AS4502 is ignored, as for JWT tokens we are not subject to CSRF attack -->
<sonar.issue.ignore.multicriteria.S4502.resourceKey>src/main/java/**/*</sonar.issue.ignore.multicriteria.S4502.resourceKey>
<sonar.issue.ignore.multicriteria.S4502.ruleKey>squid:S4502</sonar.issue.ignore.multicriteria.S4502.ruleKey>
<!-- Rule https://sonarcloud.io/coding_rules?open=squid%3AS4684&rule_key=squid%3AS4684 -->
<sonar.issue.ignore.multicriteria.S4684.resourceKey>src/main/java/**/*</sonar.issue.ignore.multicriteria.S4684.resourceKey>
<sonar.issue.ignore.multicriteria.S4684.ruleKey>squid:S4684</sonar.issue.ignore.multicriteria.S4684.ruleKey>
<sonar.jacoco.reportPaths>${project.testresult.directory}/coverage/jacoco/jacoco.exec</sonar.jacoco.reportPaths>
<sonar.java.codeCoveragePlugin>jacoco</sonar.java.codeCoveragePlugin>
<sonar.typescript.lcov.reportPaths>${project.testresult.directory}/lcov.info</sonar.typescript.lcov.reportPaths>
<sonar.sources>${project.basedir}/src/main/</sonar.sources>
<sonar.junit.reportsPath>${project.testresult.directory}</sonar.junit.reportsPath>
<sonar.tests>${project.basedir}/src/test/</sonar.tests>
<!-- jhipster-needle-maven-property -->
</properties>
<dependencyManagement>
<dependencies>
<dependency>
@ -1082,4 +997,89 @@
</profile>
<!-- jhipster-needle-maven-add-profile -->
</profiles>
<properties>
<!-- Build properties -->
<maven.version>3.0.0</maven.version>
<java.version>1.8</java.version>
<scala.version>2.12.6</scala.version>
<node.version>v10.15.0</node.version>
<npm.version>6.4.1</npm.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<project.testresult.directory>${project.build.directory}/test-results</project.testresult.directory>
<maven.build.timestamp.format>yyyyMMddHHmmss</maven.build.timestamp.format>
<maven.compiler.source>${java.version}</maven.compiler.source>
<maven.compiler.target>${java.version}</maven.compiler.target>
<argLine>-Djava.security.egd=file:/dev/./urandom -Xmx256m</argLine>
<m2e.apt.activation>jdt_apt</m2e.apt.activation>
<run.addResources>false</run.addResources>
<!-- These remain empty unless the corresponding profile is active -->
<profile.no-liquibase />
<profile.swagger />
<profile.tls />
<!-- Dependency versions -->
<jhipster-dependencies.version>2.1.1</jhipster-dependencies.version>
<!-- The spring-boot version should match the one managed by
https://mvnrepository.com/artifact/io.github.jhipster/jhipster-dependencies/${jhipster-dependencies.version} -->
<spring-boot.version>2.0.8.RELEASE</spring-boot.version>
<!-- The hibernate version should match the one managed by
https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-dependencies/${spring-boot.version} -->
<hibernate.version>5.2.17.Final</hibernate.version>
<!-- The javassist version should match the one managed by
https://mvnrepository.com/artifact/org.hibernate/hibernate-core/${hibernate.version} -->
<javassist.version>3.22.0-GA</javassist.version>
<!-- The liquibase version should match the one managed by
https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-dependencies/${spring-boot.version} -->
<liquibase.version>3.5.5</liquibase.version>
<liquibase-hibernate5.version>3.6</liquibase-hibernate5.version>
<validation-api.version>2.0.1.Final</validation-api.version>
<mapstruct.version>1.2.0.Final</mapstruct.version>
<!-- Plugin versions -->
<maven-clean-plugin.version>3.1.0</maven-clean-plugin.version>
<maven-compiler-plugin.version>3.8.0</maven-compiler-plugin.version>
<maven-eclipse-plugin.version>2.10</maven-eclipse-plugin.version>
<maven-enforcer-plugin.version>3.0.0-M2</maven-enforcer-plugin.version>
<maven-idea-plugin.version>2.2.1</maven-idea-plugin.version>
<maven-resources-plugin.version>3.1.0</maven-resources-plugin.version>
<maven-surefire-plugin.version>2.22.1</maven-surefire-plugin.version>
<maven-war-plugin.version>3.2.2</maven-war-plugin.version>
<jib-maven-plugin.version>0.9.11</jib-maven-plugin.version>
<frontend-maven-plugin.version>1.6</frontend-maven-plugin.version>
<jacoco-maven-plugin.version>0.8.2</jacoco-maven-plugin.version>
<lifecycle-mapping.version>1.0.0</lifecycle-mapping.version>
<scala-maven-plugin.version>3.4.2</scala-maven-plugin.version>
<sonar-maven-plugin.version>3.5.0.1254</sonar-maven-plugin.version>
<git-commit-id-plugin.version>2.2.5</git-commit-id-plugin.version>
<!-- Sonar properties -->
<sonar.host.url>http://localhost:9001</sonar.host.url>
<sonar.exclusions>src/main/webapp/content/**/*.*, src/main/webapp/i18n/*.js, target/www/**/*.*</sonar.exclusions>
<sonar.issue.ignore.multicriteria>S3437,S4502,S4684,UndocumentedApi,BoldAndItalicTagsCheck</sonar.issue.ignore.multicriteria>
<!-- Rule https://sonarcloud.io/coding_rules?open=Web%3ABoldAndItalicTagsCheck&rule_key=Web%3ABoldAndItalicTagsCheck is ignored. Even if we agree that using the "i" tag is an awful practice, this is what is recommended by http://fontawesome.io/examples/ -->
<sonar.issue.ignore.multicriteria.BoldAndItalicTagsCheck.resourceKey>src/main/webapp/app/**/*.*</sonar.issue.ignore.multicriteria.BoldAndItalicTagsCheck.resourceKey>
<sonar.issue.ignore.multicriteria.BoldAndItalicTagsCheck.ruleKey>Web:BoldAndItalicTagsCheck</sonar.issue.ignore.multicriteria.BoldAndItalicTagsCheck.ruleKey>
<!-- Rule https://sonarcloud.io/coding_rules?open=squid%3AS3437&rule_key=squid%3AS3437 is ignored, as a JPA-managed field cannot be transient -->
<sonar.issue.ignore.multicriteria.S3437.resourceKey>src/main/java/**/*</sonar.issue.ignore.multicriteria.S3437.resourceKey>
<sonar.issue.ignore.multicriteria.S3437.ruleKey>squid:S3437</sonar.issue.ignore.multicriteria.S3437.ruleKey>
<!-- Rule https://sonarcloud.io/coding_rules?open=squid%3AUndocumentedApi&rule_key=squid%3AUndocumentedApi is ignored, as we want to follow "clean code" guidelines and classes, methods and arguments names should be self-explanatory -->
<sonar.issue.ignore.multicriteria.UndocumentedApi.resourceKey>src/main/java/**/*</sonar.issue.ignore.multicriteria.UndocumentedApi.resourceKey>
<sonar.issue.ignore.multicriteria.UndocumentedApi.ruleKey>squid:UndocumentedApi</sonar.issue.ignore.multicriteria.UndocumentedApi.ruleKey>
<!-- Rule https://sonarcloud.io/coding_rules?open=squid%3AS4502&rule_key=squid%3AS4502 is ignored, as for JWT tokens we are not subject to CSRF attack -->
<sonar.issue.ignore.multicriteria.S4502.resourceKey>src/main/java/**/*</sonar.issue.ignore.multicriteria.S4502.resourceKey>
<sonar.issue.ignore.multicriteria.S4502.ruleKey>squid:S4502</sonar.issue.ignore.multicriteria.S4502.ruleKey>
<!-- Rule https://sonarcloud.io/coding_rules?open=squid%3AS4684&rule_key=squid%3AS4684 -->
<sonar.issue.ignore.multicriteria.S4684.resourceKey>src/main/java/**/*</sonar.issue.ignore.multicriteria.S4684.resourceKey>
<sonar.issue.ignore.multicriteria.S4684.ruleKey>squid:S4684</sonar.issue.ignore.multicriteria.S4684.ruleKey>
<sonar.jacoco.reportPaths>${project.testresult.directory}/coverage/jacoco/jacoco.exec</sonar.jacoco.reportPaths>
<sonar.java.codeCoveragePlugin>jacoco</sonar.java.codeCoveragePlugin>
<sonar.typescript.lcov.reportPaths>${project.testresult.directory}/lcov.info</sonar.typescript.lcov.reportPaths>
<sonar.sources>${project.basedir}/src/main/</sonar.sources>
<sonar.junit.reportsPath>${project.testresult.directory}</sonar.junit.reportsPath>
<sonar.tests>${project.basedir}/src/test/</sonar.tests>
<!-- jhipster-needle-maven-property -->
</properties>
</project>

View File

@ -10,3 +10,5 @@
- [Introduction to Arrow in Kotlin](https://www.baeldung.com/kotlin-arrow)
- [Kotlin with Ktor](https://www.baeldung.com/kotlin-ktor)
- [REST API With Kotlin and Kovert](https://www.baeldung.com/kotlin-kovert)
- [MockK: A Mocking Library for Kotlin](https://www.baeldung.com/kotlin-mockk)
- [Kotlin Immutable Collections](https://www.baeldung.com/kotlin-immutable-collections)

View File

@ -13,10 +13,6 @@
<version>1.0.0-SNAPSHOT</version>
</parent>
<properties>
<jbpm.version>6.0.0.Final</jbpm.version>
</properties>
<repositories>
<repository>
<id>jboss-public-repository-group</id>
@ -40,4 +36,8 @@
<version>${jbpm.version}</version>
</dependency>
</dependencies>
<properties>
<jbpm.version>6.0.0.Final</jbpm.version>
</properties>
</project>

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