How to Swap Number Without Using Third Variable in Java

In this example we will show the method to swap number without using third variable in Java.

Source Code

package com.beginner.examples;

public class SwapNum {

  public static void main(String[] args){
    int m = 2020;
    int n = 6;
    //swap the value
    m = m + n;
    n = m - n;
    m = m - n;
    System.out.println("m = " + m + " and n = " + n);
  }
}

Output:

m = 6 and n = 2020