private static void InvokeStatePattern()
{
CardReader c=new CardReader();
c.PerformOperation(); //Instance will point to CardInsert
c.PerformOperation();//Instance will point to CardHold
c.PerformOperation();//Instance will point to CardDiscard
}
public CardInsert(CardReader Reader)
{
_reader = Reader;
}
public CardHold(CardReader reader)
{
_reader = reader;
}
public CardDiscard(CardReader reader)
{
_reader = reader;
}