public static void Main()
{
UrlChecker checker = new UrlChecker("http://localhost:3000/form", "B:/Test.txt");
checker.Attach(new UrlObserver("localhostObserver"));
checker.State = "New";
CareTaker careTaker = new CareTaker();
careTaker.Memento = checker.CreateMemento();
checker.Start();
Console.ReadKey();
}
public void Update(UrlChecker checker)
{
Console.WriteLine(Name + " : " + checker.UrlName + " has been modified");
}