static void Main(string[] args)
{
var plates = new List <IPlateNG>();
plates.Add(new HugePlate());
plates.Add(new SmallPlate());
IPlateNG aPlate = plates[0];
IWaffle aWaffle = aPlate.GetWaffle();
Console.WriteLine(aWaffle.Eat());
IPlate <FalafelWaffle> aSmallPlate = (SmallPlate)plates[1];
FalafelWaffle aFalafel = aSmallPlate.GetMyWaffle();
Console.WriteLine(aFalafel.Dinner());
Console.ReadKey();
}
static void Main(string[] args)
{
// The list cannot work with the IPlate<IWaffle> anymore. So here comes IPlateNG to the rescue
var plates = new List <IPlateNG>();
plates.Add(new HugePlate());
plates.Add(new SmallPlate());
IPlateNG aPlate = plates[0];
// And instead of calling to the GetMyWaffle method we can call to the GetWaffle in this case
IWaffle aWaffle = aPlate.GetWaffle();
Console.WriteLine(aWaffle.Eat());
IPlate <FalafelWaffle> aSmallPlate = (SmallPlate)plates[1];
FalafelWaffle aFalafel = aSmallPlate.GetMyWaffle();
Console.WriteLine(aFalafel.Dinner());
}
static void Main(string[] args)
{
var plates = new List <IPlate <IWaffle> >();
plates.Add(new HugePlate());
plates.Add(new SmallPlate());
IPlate <IWaffle> aPlate = plates[0];
// Anyway, when you get a member of the collection you'll get the interface, not a concrete class (obviously).
IWaffle aWaffle = aPlate.GetMyWaffle();
// So you cannot invoke any specifics (like Breakfast or Dinner)
Console.WriteLine(aWaffle.Eat());
// But if you cast the member of the collection to the specific class (or interface)
IPlate <FalafelWaffle> aSmallPlate = (SmallPlate)plates[1];
// Then you'll get the concrete class without casting again
FalafelWaffle aFalafel = aSmallPlate.GetMyWaffle();
Console.WriteLine(aFalafel.Dinner());
}