Java Program to Swap Numbers without using 3rd variable

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import java.util.Scanner; public class Swapping{ public static void main(String[] args){ Scanner in = new Scanner(System.in); System.out.println("Enter the 1st number: "); int x = in.nextInt(); System.out.println("Enter the 2nd number: "); int y = in.nextInt(); System.out.println("Initial value of x: "+x+" and y: "+y); x = x+y; y = x-y; x = x-y; System.out.println("After swapping value of x: "+x+" and y: "+y); } }

Output

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Enter the 1st number:  43  Enter the 2nd number:  56  Initial value of x: 43 and y: 56  After swapping value of x: 56 and y: 43