How to Swap Numbers Without Using Third Variable in Java

In this example, you’ll learn how to swap value of two numbers without using third variable in Java.

Source Code

package com.beginner.examples;

public class SwapNumExample {

    public static void main(String[] args){
    	int m = 2019;
    	int n = 10;
		//swap the value
		m = m + n;
		n = m - n;
		m = m - n;	
		System.out.println("m = " + m + " and n = " + n);
	}
}

Output:

m = 10 and n = 2019