static void Main(string[] args)
{
Observable obe = new ConcreteObservable();
ConcreteObserver concreteObserver_1 = new ConcreteObserver("ConcreteObserver_1");
ConcreteObserver concreteObserver_2 = new ConcreteObserver("ConcreteObserver_2");
ConcreteObserver concreteObserver_3 = new ConcreteObserver("ConcreteObserver_3");
obe.AddObserver(concreteObserver_1);
obe.AddObserver(concreteObserver_3);
obe.NotifyObservers();
obe.NotifyObservers();
obe.RemoveObserver(concreteObserver_3);
obe.AddObserver(concreteObserver_2);
obe.NotifyObservers();
obe.AddObserver(concreteObserver_3);
obe.NotifyObservers();
PrintObserverInfo(concreteObserver_1);
PrintObserverInfo(concreteObserver_2);
PrintObserverInfo(concreteObserver_3);
}
static void Main(string[] args)
{
ConcreteObservable concreteObservable = new ConcreteObservable();
concreteObservable.Register(new ConcreteObserverA("First"));
concreteObservable.Register(new ConcreteObserverB("Second"));
var observerToRegister = new ConcreteObserverB("Third");
concreteObservable.Register(observerToRegister);
concreteObservable.NotifyObserver(24);
concreteObservable.Unregister(observerToRegister);
Console.WriteLine("==================================");
concreteObservable.NotifyObserver(42);
Console.ReadKey();
}