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

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

 

Source: http://selenium-makeiteasy.blogspot.com