imagine we’re designing the objects for a deck of cards. Consider the following approach:

1.  What are you trying to do with the deck of cards? Ask your interviewer.  Let’s assume 

we want a general purpose deck of cards to implement many di#erent types of card 

games.

2.  What are the core objects—and what “sub types” are there? For example, the core 

items might be: Card, Deck, Number, Suit, PointValue

3.  Have you missed anything? Think about how you’ll use that deck of cards to imple-

ment di#erent types of games, changing the class design as necessary. 

4.  Now, get a little deeper: how will the methods work? If you have a method like Card 

Deck:.getCard(Suit s, Number n), think about how it will retrieve the card.