Question

Given these three classes: Card, DeckOfCards, and DeckOfCardsTest. Extend the DeckofCards class to implement a BlackJack class, which implements a BlackJack game. Please do not use any java applet on the coding.

Hint: Use a test class to test above classes.

Pulic class Card
{
   private final String face; // face of card ("Ace", "Deuce", ...)
   private final String suit; // suit of card ("Hearts", "Diamonds", ...)

   // two-argument constructor initializes card's face and suit
   public Card(String cardFace, String cardSuit)
   {
       this.face = cardFace; // initialize face of card
       this.suit = cardSuit; // initialize suit of card
   }

   // return String representation of Card
   public String toString()
   {
       return face + " of " + suit;
   }
} // end class Card

==========================================================================================================

import java.security.SecureRandom;

class DeckOfCards
{
   private Card[] deck; // array of Card objects
   private int currentCard; // index of next Card to be dealt (0-51)
   private static final int NUMBER_OF_CARDS = 52; // constant # of Cards
   // random number generator
   private static final SecureRandom randomNumbers = new SecureRandom();

   // constructor fills deck of Cards
   public DeckOfCards()
   {
   String[] faces = { "Ace", "Deuce", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten", "Jack", "Queen", "King" };
   String[] suits = { "Hearts", "Diamonds", "Clubs", "Spades" };

   deck = new Card[NUMBER_OF_CARDS]; // create array of Card objects
   currentCard = 0; // first Card dealt will be deck[0]

   // populate deck with Card objects
   for (int count = 0; count < deck.length; count++)
   deck[count] =new Card(faces[count % 13], suits[count / 13]);
   }

   // shuffle deck of Cards with one-pass algorithm
   public void shuffle()
   {
   // next call to method dealCard should start at deck[0] again
   currentCard = 0;

   // for each Card, pick another random Card (0-51) and swap them
   for (int first = 0; first < deck.length; first++)
   {
   // select a random number between 0 and 51
   int second = randomNumbers.nextInt(NUMBER_OF_CARDS);

   // swap current Card with randomly selected Card
   Card temp = deck[first];
   deck[first] = deck[second];
   deck[second] = temp;
   }
}

   // deal one Card
Card dealCard()
{
   // determine whether Cards remain to be dealt
   if (currentCard < deck.length)
   return deck[currentCard++]; // return current Card in array
   else
   return null; // return null to indicate that all Cards were dealt
   }
} // end class DeckOfCards

====================================================================================

public class DeckOfCardsTest
{
   // execute application
   public static void main(String[] args)
   {
   DeckOfCards myDeckOfCards = new DeckOfCards();
   myDeckOfCards.shuffle(); // place Cards in random order

   // print all 52 Cards in the order in which they are dealt
   for (int i = 1; i <= 52; i++)
       {
       // deal and display a Card
       System.out.printf("%-19s", myDeckOfCards.dealCard());

       if (i % 4 == 0) // output a newline after every fourth card
       System.out.println();
       }
   }
} // end class DeckOfCardsTest