Thread: Help with blackjack game

My program uses a switch for the values of my cards
I need help making Jack, Queen, and King all equal to 10
and NOT 11, 12, 13 as in my program

Also, how do i make the player choose if they want Ace to equal to 1 or 11?

 /*
An object of class card represents one of the 52 cards in a
standard deck of playing cards. Each card has a suit and
a value.
*/
 
 
public class Card {
 
public final static int SPADES = 0, // Codes for the 4 suits.
HEARTS = 1,
DIAMONDS = 2,
CLUBS = 3;
 
public final static int ACE = 1, // Codes for the non-numeric cards.
JACK = 11, // Cards 2 through 10 have their 
QUEEN = 12, // numerical values for their codes.
KING = 13;
 
private final int suit; // The suit of this card, one of the constants
// SPADES, HEARTS, DIAMONDS, CLUBS.
 
private final int value; // The value of this card, from 1 to 11.
 
 
public Card(int theValue, int theSuit) {
// Construct a card with the specified value and suit.
// Value must be between 1 and 13. Suit must be between
// 0 and 3. If the parameters are outside these ranges,
// the constructed card object will be invalid.
value = theValue;
suit = theSuit;
}
 
public int getSuit() {
// Return the int that codes for this card's suit.
return suit;
}
 
public int getValue() {
// Return the int that codes for this card's value.
return value;
}
 
public String getSuitAsString() {
// Return a String representing the card's suit.
// (If the card's suit is invalid, "??" is returned.)
switch ( suit ) {
case SPADES: return "Spades";
case HEARTS: return "Hearts";
case DIAMONDS: return "Diamonds";
case CLUBS: return "Clubs";
default: return "??";
}
}
 
public String getValueAsString() {
// Return a String representing the card's value.
// If the card's value is invalid, "??" is returned.
switch ( value ) {
case 1: return "Ace";
case 2: return "2";
case 3: return "3";
case 4: return "4";
case 5: return "5";
case 6: return "6";
case 7: return "7";
case 8: return "8";
case 9: return "9";
case 10: return "10";
case 11: return "Jack";
case 12: return "Queen";
case 13: return "King";
default: return "??";
}
}
 
public String toString() {
// Return a String representation of this card, such as
// "10 of Hearts" or "Queen of Spades".
return getValueAsString() + " of " + getSuitAsString();
}
 
 
} // end class Card

/* 
An object of type Deck represents an ordinary deck of 52 playing cards.
The deck can be shuffled, and cards can be dealt from the deck.
*/
 
public class Deck {
 
private Card[] deck; // 52 Cards are created in array that will be used for the deck
private int cardsUsed; // How many cards have been dealt from the deck.
 
public Deck() {
// Create an unshuffled deck of cards.
deck = new Card[52];
int cardCt = 0; // How many cards have been created so far.
for ( int suit = 0; suit <= 3; suit++ ) {
for ( int value = 1; value <= 13; value++ ) {
deck[cardCt] = new Card(value,suit);
cardCt++;
}
}
cardsUsed = 0;
}
 
public void shuffle() {
// Put all the used cards back into the deck, and shuffle it into
// a random order.
for ( int i = 51; i > 0; i-- ) {
int rand = (int)(Math.random()*(i+1));
Card temp = deck[i];
deck[i] = deck[rand];
deck[rand] = temp;
}
cardsUsed = 0;
}
 
public int cardsLeft() {
// As cards are dealt from the deck, the number of cards left
// decreases. This function returns the number of cards that
// are still left in the deck.
return 52 - cardsUsed;
}
 
public Card dealCard() {
// Deals one card from the deck and returns it.
if (cardsUsed == 52)
shuffle();
cardsUsed++;
return deck[cardsUsed - 1];
}
 
} // end class Deck

import java.util.Scanner;
 
public class G21
{
    static Deck deck; 
    static int playerHand;
    static int compHand;
    static Scanner scanner;
 
    public static void main(String[] args)
    {
        scanner = new Scanner(System.in);
        deck = new Deck();
        deck.shuffle();
        boolean deal = true;
        do {
            playerHand = 0;
            compHand = 0;
            start();
            if(playersTurn())
                dealersTurn();
            checkScores();
            System.out.println("Play again? y/n");
            if(scanner.nextLine().charAt(0) != 'y')
                deal = false;
        } while(deal);
    }
 
    private static void start() {
        for(int j = 0; j < 2; j++) {
            Card card = deck.dealCard();
            String s = (j == 0) ? "1st" : "2nd";
            System.out.println("Your " + s + " card: " + card);
            playerHand += card.getValue();
            // check for blackjack
        }
        for(int j = 0; j < 2; j++) {
            Card card = deck.dealCard();
            String s = (j == 0) ? "1st" : "2nd";
            System.out.println("Dealer's " + s + " card: " + card);
            compHand += card.getValue();
            // check for blackjack
        }
    }
 
    private static boolean playersTurn() {
        boolean takeHit = true;
        while(takeHit) {
            System.out.println("Do you want a hit? y/n");
            if(scanner.nextLine().charAt(0) == 'y') {
                Card card = deck.dealCard();
                System.out.println("Your next card: " + card);
                playerHand += card.getValue();
                if(playerHand > 21)
                    takeHit = false;
            } else {
                takeHit = false;
            }
        }
        return playerHand <= 21;
    }
 
    private static void dealersTurn() {
        while(compHand < 16) {
            Card card = deck.dealCard();
            System.out.println("Dealer's next card: " + card);
            compHand += card.getValue();
        }
    }
 
    private static void checkScores() {
        if(playerHand > 21)
            System.out.println("You lose with " + playerHand);
        else if(compHand > 21)
            System.out.println("Dealer loses with " + compHand);
        else if(compHand == 21)
            System.out.println("Dealer wins with " + compHand);
        else if (playerHand == 21)
            System.out.println("You win with " + playerHand);
        else {
            String result;
            if(playerHand > compHand)
                result = "You win: " + playerHand + " to " + compHand;
            else
                result = "Dealer wins with " + compHand + " to " + playerHand;
            System.out.println(result);
        }
    }
}

for the value thing...you could just add another parameter to cardss for value. So you would have like a name a suit and a value, that would be pretty simple im thinking. and then as for the ace thing: deciding what you want it to be is a very trivial problem, if the player has an ace total the value as if its 11, then if he busts turn it into a 1 and continue. Thats atleast how i see it, because its not like, hmmm do i want this to be 1 or 11, its like well i guess it has to be a one now.

how would i assign and call my value with the paramter without the suit? and im still confused about the Ace thing