using System;

using System.Collections;

using System.Collections.Generic;

​

public abstract class Menu {

    protected List<string> menuOptions;

protected abstract bool handleChoice(int selectedChoice);

public void ShowMenu() {    

​

handleChoice(2);

​

} 

​

} 

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

}