Swapping two numbers using third variable

Swapping two numbers using third variable

public class Swapping {

    public static void main(String[] arg){

        int a=10,b=20,c;

        c=a;

        a=b;

        b=c;

        System.out.println("a value is : "+a+" b value is :"+b);

    }   

}

Output:

a value is : 20 b value is :10