Swapping_Two_Numbers_without_Temp_Variable

package interview;

public class Swapping_Two_Numbers_without_Temp_Variable
{

public static void main(String[] args)
{
  int num1 = 54;
  int num2 = 45;
  num1 = num1 + num2;
  num2 = num1 - num2;
  num1 = num1 - num2;
  System.out.println("num1: "+num1);
  System.out.println("num2: "+num2);

}

}