exp 3
#delete MyMavenApp in folder
mvn archetype:generate -DgroupId=com.example -DartifactId=MyMavenApp -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false
cd MyMavenApp
sudo snap install tree
tree
gedit pom.xml
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<?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.example</groupId>
<artifactId>MyMavenApp</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<properties>
<!-- Java version -->
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>
<!-- JUnit and Surefire versions -->
<junit.jupiter.version>5.10.1</junit.jupiter.version>
<surefire.plugin.version>3.0.0-M7</surefire.plugin.version>
</properties>
<dependencies>
<!-- JUnit 5 API for writing tests -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>${junit.jupiter.version}</version>
<scope>test</scope>
</dependency>
<!-- JUnit 5 Engine for running tests -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>${junit.jupiter.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<!-- Compiler plugin for Java 17 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>${maven.compiler.source}</source>
<target>${maven.compiler.target}</target>
</configuration>
</plugin>
<!-- Surefire plugin to run JUnit 5 tests -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${surefire.plugin.version}</version>
<configuration>
<argLine>--add-opens java.base/java.lang=ALL-UNNAMED</argLine>
</configuration>
</plugin>
</plugins>
</build>
</project>
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gedit src/main/java/com/example/App.java
------------------------------------------------------------------------------------------------------------
package com.example;
public class App {
public String getMessage() {
return "Hello World!";
}
public static void main(String[] args) {
System.out.println(new App().getMessage());
}
}
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gedit src/test/java/com/example/AppTest.java
------------------------------------------------------------------------------------------------------------
package com.example;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
class AppTest {
@Test
void testGetMessage() {
App app = new App();
assertEquals("Hello World!", app.getMessage(), "Message should be 'Hello World!'");
}
}
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mvn clean install
java -cp target/classes com.example.App
gradle init
tree
gedit build.gradle
------------------------------------------------------------------------
plugins {
id 'application'
id 'java-library'
id 'maven-publish'
}
repositories {
mavenLocal()
maven {
url = uri('https://repo.maven.apache.org/maven2/')
}
}
dependencies {
testImplementation libs.junit.junit
}
group = 'com.example'
version = '1.0-SNAPSHOT'
description = 'HelloMaven'
java.sourceCompatibility = JavaVersion.VERSION_1_8
application {
mainClass = 'com.example.App'
}
publishing {
publications {
maven(MavenPublication) {
from(components.java)
}
}
}
---------------------------------------------------------------------------------------------
gradle build
gradle run
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