public SoldState(GumBallMachine gumBallMachine) { _gumBallMachine = gumBallMachine; }
public NoQuarterState(GumBallMachine gumBallMachine) { _gumBallMachine = gumBallMachine; }
public WinnerState(GumBallMachine gumBallMachine) { _gumBallMachine = gumBallMachine; }