public WinnerState(GumballMachine gumballMachine) { _gumballMachine = gumballMachine; }
public NoQuarterState(GumballMachine gumballMachine) { _gumballMachine = gumballMachine; }
public SoldOutState(GumballMachine gumballMachine) { _gumballMachine = gumballMachine; }