public void Execute()
{
var total = _cashRegister.CheckOut();
Console.WriteLine("Amount owed = {0}", total.Total);
var paymentDisplay = new DisplayOptions();
paymentDisplay.AddChoice(new PayWithCashCommand(_cashRegister));
paymentDisplay.MakeChoice();
}
static void Main(string[] args)
{
var register = new CashRegister();
var display = new DisplayOptions();
display.AddChoice(new ChangeStateCommand(register));
display.AddChoice(new EnterSkuCommand(register));
var scanner = new NormalScanner();
scanner.AddObserver(register);
display.AddChoice(new ScannerCommand(scanner));
display.AddChoice(new CheckoutCommand(register));
display.MakeChoice();
Console.WriteLine();
Console.WriteLine("Done");
Console.ReadLine();
}
