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(); }