using System;

public class Program

{

    static int globalVariable = 4;

    static void MyVoidMethod(int incoming){

    int localVariable = incoming*2;

    globalVariable = localVariable; 

    }

​

    public static void Main()

    {

        Console.WriteLine("globalVariable is currently = {0}",globalVariable);

        MyVoidMethod(30);

        Console.WriteLine("globalVariable is currently = {0}", globalVariable);

    }

}