问题：Design black jack?

Classes:

• Card

  • Rank: value of the card
  • Suit: Club, Diamond, Heart, Spade

• Hand (player or dealer)

  • Cards: array of current cards
  • addCard
  • getValue: score of the hand

• Deck

  • Cards
  • shuffle
  • sendCard

• Game

  • deck
  • player
  • dealer
  • in