static void Main(string[] args)
{
Barbecuer boy = new Barbecuer();
Command bakeMutton1 = new BakeMuttonCommand(boy);
Command bakeMutton2 = new BakeMuttonCommand(boy);
Command bakeChickenWing = new BakeChickenWingCommand(boy);
Waiter girl = new Waiter();
girl.SetOrder(bakeMutton1);
girl.SetOrder(bakeMutton2);
girl.SetOrder(bakeChickenWing);
girl.Notify();
}
