wap to swapping of two numbers using third variable

//wap to swapping of two numbers

import java.util.Scanner;

class swapping

{

public static void main(String[] arg)

{

Scanner sc=new Scanner(System.in);

System.out.println("Enter First Number : ");

int x=sc.nextInt();

System.out.println("Enter second number : ");

int y=sc.nextInt();

System.out.println("Before Swapping x ="+x +" y="+y);

x=x+y;

y=x-y;

x=x-y;

System.out.println("After Swapping x ="+x +" y="+y);

}

}