Part 9: Building Java Applications

Java is a versatile programming language used to develop a wide range of applications, from simple console-based programs to sophisticated graphical user interfaces (GUIs). This blog will walk you through the essentials of building Java applications, focusing on console and GUI applications, using build automation tools like Maven or Gradle, and packaging your applications into JAR files.

1. Building Console Applications

Console applications are simple programs that interact with users via a command-line interface. These applications are an excellent starting point for understanding Java’s core programming principles.

Steps to Build Console Applications:

1. Setup the Environment:

• Install the Java Development Kit (JDK).
• Use an Integrated Development Environment (IDE) like IntelliJ IDEA or Eclipse for easier coding and debugging.

2. Write Code:
Example: A simple program to calculate the sum of two numbers.

import java.util.Scanner;

public class ConsoleApp {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.print("Enter the first number: ");
        int num1 = scanner.nextInt()…