Solved

How do I make a deck of cards using ArrayLists?

Posted on 2011-09-07
5
584 Views
Last Modified: 2012-05-12
I am new to Java and this is my first time creating a Card class and DeckOfCards class. I need a constructor that can populate 52 different cards 2 S, 3 S,..Ace S, 2 C, 3 C,...Ace C,...Ace D,...Ace H. I think I also need to create a resetDeckOfCards method to use. I know I need to use a loop but I can't think of a way to do it.

Here is my Card class:

public class Card
{
   
    private String rank;//card rank: a number between 2 and 10, or Jack, Queen, King or Ace
    private char suit;//card suit: S,C,H,or D
    private static String[] Ranks={"2","3","4","5","6","7","8","9","10","Jack","Queen","King","Ace"};
    private static char[] Suites={'C','H','D','S'};
     
    /**
     * Constructor for objects of class Card
     */
    public Card()
    {
        rank="2";
        suit='H';
       
    }
   
    public Card(String rank, char suit)
    {
        this.rank=rank;
        this.suit=suit;
    }
     public String getRank()
    {
        return rank;
    }
   
    public char getSuit()
    {
        return suit;
    }
   
    public void setRank(String rank)
    {
        this.rank=rank;
    }
   
    public void setSuit(char suit)
    {
        this.suit=suit;
    }
    //Returns an array of possible card ranks
    public static String[] getPossibleRanks()
    {
        return Ranks;
    }
    //Returns an array of possible card suits
    public static char[] getPossibleSuits()
 {
        return Suites;
    }
   
    public String toString()
    {String suitName = "";
        switch (suit){
        case 'H':
         suitName = rank + " of Hearts";
            break;
         case 'S':
            suitName = rank + " of Spades";
             break;
              case 'D':
                suitName = rank + " of Diamonds";
                  break;
                  case 'C':
                   suitName = rank + " of Clubs";


    }
return suitName;
}
}

Here is my DeckOfCards class so far:

import java.util.Random;
import java.util.ArrayList;

public class DeckOfCards
{
    // instance variables - replace the example below with your own
    private ArrayList<Card> deck = new ArrayList<Card>();
    Random getRandom = new Random();
    /**
     * Constructor for objects of class DeckOfCards
     */
    public DeckOfCards()
    {
       
       String[] ranks = Card.getPossibleRanks();
       char[] suites = Card.getPossibleSuits();
       Card newCard;

     }  

0
Comment
Question by:ryanbecker24
  • 5
5 Comments
 
LVL 47

Accepted Solution

by:
for_yan earned 500 total points
ID: 36499864


package javacards;

import java.util.Random;
import java.util.ArrayList;

public class Deck {
	private ArrayList<Card> cards;

	 Deck()
	{
		cards = new ArrayList<Card>();
		for (int a=0; a<=3; a++)
		{
			for (int b=0; b<=12; b++)
			 {
			   cards.add( new Card(a,b) );
			 }
		}
	}

	public Card drawFromDeck()
	{
		Random generator = new Random();
		int index= generator.nextInt( cards.size() );
		return cards.remove(index);
	}

	 public int getTotalCards()
	{
		return cards.size();
	}
}

Open in new window

0
 
LVL 47

Expert Comment

by:for_yan
ID: 36499869
The above is example form that old link you already know:
http://www.dreamincode.net/forums/topic/110380-deck-of-cards-using-various-methods/
0
 
LVL 47

Expert Comment

by:for_yan
ID: 36499883

Waht you mean by  resetDeckOfCards ?

If yiou mean that you want to have again 52 cards - then you just use
constructor to ctreate the deck of cards

And if you mena to reshuffle - to your would normally not need it,
as long as your drawFromDeck method uses random slection of the card

Or say draw 52 times - and add them to ArrayList and there is your reshuffled deck
but as your drawing is Random - so you don't need to shuffle
0
 
LVL 47

Expert Comment

by:for_yan
ID: 36499887
In your variant - you can use theDeck generation above - just
add to yor card clas s the constructor which should take two int - and those will be the indices
into your arrays of rank and suite
0
 
LVL 47

Assisted Solution

by:for_yan
for_yan earned 500 total points
ID: 36499895
just add such constructor:

 public Card(int suitInd, int rankInd)
    {
        this.rank=rank[rankInd];
        this.suit=suit[suitInd];
    }

Open in new window

0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
jdbc error in jsp application 20 45
runtime exception 2 28
How to determine if a string is a valid SHA value 7 33
Adding multiple JVM environments to RedHat 6 7 21
Java had always been an easily readable and understandable language.  Some relatively recent changes in the language seem to be changing this pretty fast, and anyone that had not seen any Java code for the last 5 years will possibly have issues unde…
Introduction Java can be integrated with native programs using an interface called JNI(Java Native Interface). Native programs are programs which can directly run on the processor. JNI is simply a naming and calling convention so that the JVM (Java…
Viewers learn about the “for” loop and how it works in Java. By comparing it to the while loop learned before, viewers can make the transition easily. You will learn about the formatting of the for loop as we write a program that prints even numbers…
Viewers will learn about the different types of variables in Java and how to declare them. Decide the type of variable desired: Put the keyword corresponding to the type of variable in front of the variable name: Use the equal sign to assign a v…

772 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question