Programming Examples

Swapping of two variables without using a third variable


Create a program that will swap the values stored in two variables without using a third variable.

Solution

public class Swaping
{
    public static void main(String args[])
    {
        int a=40,b=30;
        System.out.println("Before Swap the value of a="+a+" and b="+b);
        a=a+b;
        b=a-b;
        a=a-b;
        System.out.println("After Swap the value of a="+a+" and b="+b);
    }
}
Output

Before Swap the value of a=40 and b=30

After Swap the value of a=30 and b=40

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