Java IntelliJ IDEA and Maven Project

This project demonstrates a simple Java Command Line Interface (CLI) application built with Maven and using Picocli for command-line parsing. It includes subcommands (hello and goodbye) to print greetings and farewells, depending on user input. The project also leverages Maven Shade Plugin to package the application into a runnable JAR file.

Table of Contents

• Prerequisites
• How to Build
• How to Run
• Usage

Prerequisites

To work with this project, you need to have the following installed:

• Java Development Kit (JDK) 17 or later
• Maven
• IntelliJ IDEA (optional, but recommended for development)

How to Build

To build the project and create the executable JAR file, follow these steps:

1. Clone the repository:

   git clone <repository-url>
   cd java-intellij-idea-and-maven
   

2. Use Maven to compile and package the project: mvn clean package

   This command will generate the java-intellij-idea-and-maven-1.0-SNAPSHOT.jar file in the target directory.

How to run

After building the project, you can run the JAR file using the following command:

java -jar target/java-intellij-idea-and-maven-1.0-SNAPSHOT.jar "DAI student" hello --greetings "Bonjour"

Usage

The application has two subcommands: hello and goodbye. You can use the following options:

1. hello: Prints a greeting message.

   • --greetings: Specify the greeting message (default: "Hello").

2. goodbye: Prints a farewell message.

   • --farewells: Specify the farewell message (default: "Goodbye").

Example Commands

• Run the hello subcommand:

  java -jar target/java-intellij-idea-and-maven-1.0-SNAPSHOT.jar "DAI student" hello --greetings "Bonjour"
  
  output : Bonjour DAI student!
  

• Run the goodbye subcommand:

  java -jar target/java-intellij-idea-and-maven-1.0-SNAPSHOT.jar "DAI student" goodbye --farewells "Au revoir"
  
  output : Au revoir DAI student!