static void Main(string[] args)
{
Console.WriteLine("Hello World!");
MessageSubscriberOne s1 = new MessageSubscriberOne();
MessageSubscriberTwo s2 = new MessageSubscriberTwo();
MessageSubscriberThree s3 = new MessageSubscriberThree();
Subject subject = new Subject();
subject.attach(s1);
subject.attach(s2);
subject.State = 2;
subject.attach(s3);
Console.WriteLine();
subject.detach(s2);
subject.State = 3;
Console.ReadLine();
}
static void Main(string[] args)
{
MessageSubscriber sub1 = new MessageSubscriber();
MessageSubscriberTwo sub2 = new MessageSubscriberTwo();
MessageSubscriberThree sub3 = new MessageSubscriberThree();
MessagePublisher pub = new MessagePublisher();
pub.Attach(sub1);
pub.Attach(sub2);
pub.Attach(sub3);
pub.ChangeState(2);
Console.ReadLine();
}