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Swapping without temporary variable in Java

  1. Forget Code
  2. Java
  3. Swapping without temporary variable 
  1. import java.util.Scanner;
  2.  
  3. class SwapNumbers
  4. {
  5.    public static void main(String args[])
  6.    {
  7.       int x, y;
  8.       System.out.println("Enter x and y");
  9.       Scanner in = new Scanner(System.in);
  10.  
  11.       x = in.nextInt();
  12.       y = in.nextInt();
  13.  
  14.       System.out.println("Before Swapping\nx = "+x+"\ny = "+y);
  15.  
  16.       x = x + y;
  17.       y = x - y;
  18.       x = x - y;
  19.  
  20.       System.out.println("After Swapping\nx = "+x+"\ny = "+y);
  21.    }
  22. }