Addition of Two Number in Java – A Beginner’s Guide

 Java is a popular programming language used for building everything from mobile apps to enterprise software. One of the first programs most beginners write is the addition of two number in Java. It’s a simple task, but it helps in understanding how variables, input/output, and operators work.

Let’s look at how to perform this basic operation.

Java Program for Addition of Two Number

public class Addition {
    public static void main(String[] args) {
        int a = 10;
        int b = 20;
        int result = a + b;

        System.out.println("Addition of two number in Java: " + result);
    }
}

Output:

Addition of two number in Java: 30

Explanation:

• int a = 10; and int b = 20; – We declared two integer variables and assigned values.

• int result = a + b; – We used the + operator to add the numbers.

• System.out.println(...) – This line displays the output on the console.

Try It With User Input

To make it more dynamic, here’s how you can take user input:

import java.util.Scanner;

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

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

        System.out.print("Enter second number: ");
        int num2 = input.nextInt();

        int sum = num1 + num2;

        System.out.println("Addition of two number in Java: " + sum);

        input.close();
    }
}

Conclusion

The addition of two number in Java is a fundamental concept that helps you understand how Java handles variables, input, and output. It’s a great starting point for beginners who are just stepping into programming with Java.

Keep practicing and try extending the program with subtraction, multiplication, or even GUI-based input. Happy coding!