using System;

public class Program

{

    public static void Main()

    {

        int studentgrade2=60;

        mysimple(studentgrade2);

        Console.WriteLine(studentgrade2);

    }

    public static void mysimple(int studentgrade){

        studentgrade+=20;

        Console.WriteLine(studentgrade);

    }

}

​

​

​

// pass by value means it passing only value of one variable to another but not affect any modifications in method.