static void Main(string[] args)
{
SteveObserver steveObserver = new SteveObserver();
JohnObserver johnObserver = new JohnObserver();
NotificationService service = new NotificationService();
service.AddSubscriber(johnObserver);
service.AddSubscriber(steveObserver);
service.NotifySubscriber();
service.RemoveSubscriber(johnObserver);
Console.ReadLine();
}
static void Main(string[] args)
{
var steve = new SteveObserver();
var john = new JohnObserver();
var noticificationService = new NotificationService();
noticificationService.AddSubscriber(steve);
noticificationService.AddSubscriber(john);
noticificationService.NotifySubscriber();
noticificationService.RemoveSubsriber(steve);
}
private static void Main(string[] args)
{
INotificationService notificationService = new NotificationService();
INotificationObserver john = new JohnObserver();
INotificationObserver steve = new SteveObserver();
notificationService.AddSubscriber(john);
notificationService.AddSubscriber(steve);
notificationService.NotifySubscriber();
Console.WriteLine();
notificationService.RemoveSubscriber(john);
notificationService.NotifySubscriber();
}