static void Main(string[] args)
{
Waiter waiter = new Waiter();
PizzaBuilder hawaiianPizzaBuilder = new HawaiianPizzaBuilder();
PizzaBuilder spicyPizzaBuilder = new SpicyPizzaBuilder();
waiter.SetPizzaBuilder(hawaiianPizzaBuilder);
waiter.ConstructPizza();
Pizza pizza = waiter.GetPizza();
}
