public static CoinSlot Instance() { if (instance == null) { lock (syncLock) { if (instance == null) { instance = new CoinSlot(); } } } return(instance); }
public static void Run() { CoinSlot coinSlot = CoinSlot.Instance(); List <Coin> coins = new List <Coin>(); coinSlot.RefillCoins(coins); VendingMachine vendingMachine = VendingMachine.Instance(); List <Item> items = new List <Item>(); vendingMachine.UpdateInventory(items); Display display = new Display(); coinSlot.Attach(display); vendingMachine.Attach(display); // Loop to start }