static void Main(string[] args)
{
// Instantiate
var subject = new Subject();
var redObserver = new Observer(ConsoleColor.Red);
var blueObserver = new Observer(ConsoleColor.Blue);
var whiteObserver = new Observer(ConsoleColor.White);
// Subscribing to quantity changes
subject.OnQuantityUpdated += redObserver.ObserverQuantity;
subject.OnQuantityUpdated += blueObserver.ObserverQuantity;
subject.OnQuantityUpdated += whiteObserver.ObserverQuantity;
// Update quantity on the Subject
subject.UpdateQuantity(27);
Console.WriteLine();
subject.UpdateQuantity(7);
}
static void Main(string[] args)
{
Console.WriteLine("Hello World!");
var subject = new Subject();
var greenObserver = new Observer(ConsoleColor.Green);
var redObserver = new Observer(ConsoleColor.Red);
var yellowObserver = new Observer(ConsoleColor.Yellow);
subject.OnQuantityUpdated += greenObserver.ObserverQuantity;
subject.OnQuantityUpdated += redObserver.ObserverQuantity;
subject.OnQuantityUpdated += yellowObserver.ObserverQuantity;
subject.UpdateQuantity(12);
subject.UpdateQuantity(5);
Console.WriteLine("Enter a key to quit.");
Console.Read();
}