Swap Numbers Without Using Third Variable Java Example

/*

        Swap Numbers Without Using Third Variable Java Example

        This Swap Numbers Java Example shows how to

        swap value of two numbers without using third variable using java.

 */


public class SwapElementsWithoutThirdVariableExample {


    public static void main(String[] args) {


        int num1 = 10;

        int num2 = 20;


        System.out.println("Before Swapping");

        System.out.println("Value of num1 is :" + num1);

        System.out.println("Value of num2 is :" + num2);


        // add both the numbers and assign it to first

        num1 = num1 + num2;

        num2 = num1 - num2;

        num1 = num1 - num2;


        System.out.println("Before Swapping");

        System.out.println("Value of num1 is :" + num1);

        System.out.println("Value of num2 is :" + num2);

    }


}


/*

 * Output of Swap Numbers Without Using Third Variable example would be Before

 * Swapping Value of num1 is :10 Value of num2 is :20 Before Swapping Value of

 * num1 is :20 Value of num2 is :10

 */