Program Swapping Two Numbers In Java Without 3rd Variable

Source Code

import java.util.Scanner;

class InterChangeNo{

    

    public void swap(){

        int a, b;

      System.out.println("Enter the value of a and b:");

      Scanner in = new Scanner(System.in);

 

      a = in.nextInt();

      b = in.nextInt();

 

      System.out.println("Before Swapping\nx = "+a+"\ny = "+b);

 

      a = a + b;

      b = a - b;

      a = a - b;

 

      System.out.println("After Swapping\nx = "+a+"\ny = "+b);

    }

    

}

 

class Main

{

   public static void main(String args[])

   {

      InterChangeNo obj=new InterChangeNo();

      obj.swap();

   }

}

Output