Java Swap of two data with out third variable Code

package com.kartik.tutorials;

public class SwapTest {

 public static void main(String[] args) {

               Swap aSwap=new Swap();

       int a = 2; //0010 in binary

       int b = 4; //0100 in binary

            aSwap.swapMethod(a,b);

      }

}




public class Swap{

  private int a;

  private int b;

  

public void swapMethod(int first,int second){

a=first;

b=second;

System.out.println("value of a and b before swapping, a: " + a +" b: " + b);

a=a^b;

b=a^b;

a=a^b;

System.out.println("value of a and b after swapping using XOR bitwise operation, a: " + a +" b: " + b);




} 

}  




Ex-plain:




A       B       A^B (A XOR B)

0       0       0 (zero because operands are same)

0       1       1

1       0       1 (one because operands are different)

1       1       0










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About Kartik Chandra Mandal

I am Kartik Chandra Mandal from Bangalore, India. Working as software engineer in Java technology. Have good knowledge of OWASP and CSRF in security for applications and it's implementation in Java technology.

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