static void Main(string[] args)
{
YoutubeChannel muriloxkChannel = new YoutubeChannel();
ISubscriber joey = new User();
ISubscriber alex = new User();
ISubscriber gai = new Moderator();
muriloxkChannel.Subscribe(joey);
muriloxkChannel.Subscribe(alex);
muriloxkChannel.Subscribe(gai);
muriloxkChannel.NotifySubscribers();
Console.ReadKey();
}
public static void Main(string[] args)
{
IObserver user1 = new User("Kamil");
IObserver user2 = new User("Jan");
YoutubeChannel channel = new YoutubeChannel();
channel.Register(user1);
channel.Register(user2);
channel.PublishNewVide();
channel.PublishNewVide();
channel.Unregister(user1);
channel.PublishNewVide();
Console.ReadLine();
}