public void InitializeConstructors()
{
twixBand = new ProductBand();
paymentTerminal = new PaymentTerminal();
dispenser = new Dispenser();
twixItem = ProductFactory.CreateTwixProduct();
twixBand.Add(twixItem);
ProductBand.Instance().Add(twixItem);
paymentTerminal.Attach(dispenser);
}
static void Main()
{
var paymentTerminal = new PaymentTerminal();
try
{
// Vending Machine Out Of Service
var pringlesItem = ProductFactory.CreatePringlesProduct();
ProductBand.Instance().Add(pringlesItem);
var dispenser = new Dispenser();
paymentTerminal.Attach(dispenser);
}
catch (Exception exception)
{
if (exception is BandIsFullException)
{
Console.WriteLine("Band is full! It can't store any items.");
}
}
try
{
// New Customer Requests for a Pringles
var visaCard = new CreditCard("4012888888881881");
paymentTerminal.Pay(visaCard, 1, "Pringles");
}
catch (Exception exception)
{
if (exception is FormatException)
{
Console.WriteLine("You entered a wrong value! Press any key and try again!");
}
if (exception is CardNotValidException)
{
Console.WriteLine("This credit card is not valid! Try another payment method.");
}
if (exception is CardNotFoundException)
{
Console.WriteLine("Card was not found! Payment canceled!");
}
if (exception is BandIsEmptyException)
{
Console.WriteLine("Band is empty! You can't {0} any item!", exception.Message);
}
}
Console.ReadKey();
}