Swap Numbers Without Using Third Variable Java Example

Java program to Swap Numbers Without Using Third Variable

Program:

public class SwapElement {  

    public static void main(String[] args) {

        

        int num1 = 10;

        int num2 = 20;

        

        System.out.println("Before Swapping");

        System.out.println("Value of num1 is :" + num1);

        System.out.println("Value of num2 is :" +num2);

        

        num1 = num1 + num2;

        num2 = num1 - num2;

        num1 = num1 - num2;

        

        System.out.println("Before Swapping");

        System.out.println("Value of num1 is :" + num1);

        System.out.println("Value of num2 is :" +num2);

    }  

}

Output: 

Before Swapping
Value of num1 is :10
Value of num2 is :20
Before Swapping
Value of num1 is :20

Value of num2 is :10