using System;

​

public interface IPlayable

{

    void Play();

    void Stop();

}

​

public class VlcPlayer : IPlayable

{

    public void Play()

    {

        Console.WriteLine("Vlc player is playing video.");

    }

​

    // Stop method not implemented

}

​

public class Program

{

    public static void TestPlayable(IPlayable playableResource)

    {

        playableResource.Play();

        playableResource.Stop();

    }

​

    public static void Main(string[] args)

    {

        Console.WriteLine("Vlc Player Test!");

        TestPlayable(new VlcPlayer());

    }

}