public Waiter()
{
_orderedBurgers = new Dictionary <int, BurgerDecorator>();
_cashRegisterCoin = new CashRegisterCoin();
_cashRegisterPaper = new CashRegisterPaper();
_cashRegisterCard = new CashRegisterCard();
}
public Cashier()
{
CashRegisterCard = new CashRegisterCard();
}