Call by value Example using java programming code

Call by value Example using java programming code 

public class CallByValue {

    public static void swap(int a, int b) {

        // Swap

        int temp = b;

        b = a;

        a = 35;

    }

    public static void main(String[] args) {

        // swap - value exchange

        int a = 45;

        int b = 25;

        swap(a, b);

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

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

    }

}