using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

}

​

public abstract class Person

{

    //public abstract int DoIt();

    public virtual void MyMethod()

    {

        Console.WriteLine("hugo");

        )

    }

}

​

public class Kunde : Person

{

    public override void MyMethod()

    {

        //blabla

        Console.WriteLine("hugo2");

    }

}

​

​