Exemplos de Observer ConcreteObserver.ChangeState em C# (CSharp)

Exemplo n.º 1

        static void Main()
        {
            ConcreteSubject  aConcreteSubject        = new ConcreteSubject();
            ConcreteObserver aConcreteObserver       = new ConcreteObserver(aConcreteSubject);
            ConcreteObserver anotherConcreteObserver = new ConcreteObserver(aConcreteSubject);

            aConcreteSubject.aConcreteObserver       = aConcreteObserver;
            aConcreteSubject.anotherConcreteObserver = anotherConcreteObserver;

            aConcreteObserver.ChangeState("First state!");

            Console.WriteLine(new string('-', 70));

            anotherConcreteObserver.ChangeState("Second state!");
        }