public static void Main(string[] args)
{
var fbObservable = new NotificationProvider("Facebook");
var githubObservable = new NotificationProvider("GitHub");
var observer = new NotificationSubscriber("Florin");
observer.Subscribe(fbObservable);
//observer.Unsubscribe();
observer.Subscribe(githubObservable);
//observer.Unsubscribe();
var observer2 = new NotificationSubscriber("Piagio");
observer2.Subscribe(fbObservable);
fbObservable.EventNotification("Event notification 1 !");
githubObservable.EventNotification("Event notification!");
}
