A deck of cards

**glebovg** · February 29th, 2012, 08:56 PM

Create a class called CardDeck with a main method contents exactly as shown here:

{
String[] deck=new String[52];
createDeck(deck);
for(int i=0; i<52; i++)
System.out.println(deck[i]);
}

You should create a method called createDeck which populates the array you created in the main method. You must use four loops, each creates the 13 cards for one of the four suits. Within the loop the card names should be automatically generated and inserted in the array. (e.g., “Ace of Spades”, “2 of Spades”…”King of Hearts”, etc.) You must use loops to generate the card names, you must not create 52 literal Strings.

public class CardDeck
{
	public static void main(String[] args)
	{
	String[] deck=new String[52];
	createDeck(deck);
	for(int i=0; i<52; i++)
	System.out.println(deck[i]);
	}
	public static void createDeck(String[] myDeck)
	{
	String[] num={"Ace","2","3","4","5","6","7","8","9","10","Jack","Queen","King"};
	int count=0;
	for(int x=0; x<13; x++)
	myDeck[x]=num[x]+" of Diamonds";
	count++;
	for(int x=13; x<26; x++)
	myDeck[count]=num[count]+" of Spades";
	count++;
	for(int x=26; x<39; x++)
	myDeck[count]=num[count]+" of Hearts";
	count++;
	for(int x=39; x<52; x++)
	myDeck[count]=num[count]+" of Clubs";
	} // end createDeck
} // end class CardDeck

What is wrong with my code?

The desired output is:

Ace of Diamonds
2 of Diamonds
3 of Diamonds
4 of Diamonds
5 of Diamonds
6 of Diamonds
7 of Diamonds
8 of Diamonds
9 of Diamonds
10 of Diamonds
Jack of Diamonds
Queen of Diamonds
King of Diamonds
Ace of Spades
2 of Spades
3 of Spades
4 of Spades
5 of Spades
6 of Spades
7 of Spades
8 of Spades
9 of Spades
10 of Spades
Jack of Spades
Queen of Spades
King of Spades

etc.

**mickey2012** · February 29th, 2012, 10:54 PM

maybe try creating a second array for the suits. Then create your deck by combining the 2 arrays.

String[] suit = { "Clubs", "Diamonds", "Hearts", "Spades" };
String[] mydeck = new String[num.length * suit.length];
for (int i = 0; i < num.length; i++) {
  for (int j = 0; j < suit.length; j++) {
   mydeck[suit.length * i + j] = rank[i] + " of " + suit[j];
			}
		}

**rektiphyr** · March 1st, 2012, 09:46 AM

public static void createDeck(String[] myDeck)
{
	String[] num={"Ace","2","3","4","5","6","7","8","9","10","Jack","Queen","King"};
 
	int count=0; //  count starts at zero
	for(int x=0; x<13; x++)
	    myDeck[x]=num[x]+" of Diamonds";
 
	count++;   // count is now 1
 
	for(int x=13; x<26; x++)
	    myDeck[count]=num[count]+" of Spades";   // this always accesses myDeck[1] and num[1]
 
	count++; // count is now 2
 
	for(int x=26; x<39; x++)
	    myDeck[count]=num[count]+" of Hearts";  // this always accesses myDeck[2] and num[2]
 
	count++;  // count is now 3
 
	for(int x=39; x<52; x++)
	    myDeck[count]=num[count]+" of Clubs";   // this always accesses myDeck[3] and num[3]
} // end createDeck

What you need to do is keep track of the total number of cards generated, and use that to index through the deck:

public static void createDeck(String[] myDeck)
	{
		String[] num={"Ace","2","3","4","5","6","7","8","9","10","Jack","Queen","King"};
 
		int count=0;
		for(int x=0; x<13; x++, count++)
		    myDeck[count]=num[x]+" of Diamonds";
 
 
		for(int x=0; x<13; x++, count++)
			myDeck[count]=num[x]+" of Spades";
 
		for(int x=0; x<13; x++, count++)
			myDeck[count]=num[x]+" of Hearts";
 
		for(int x=0; x<13; x++, count++)
			myDeck[count]=num[x]+" of Clubs";
	} // end createDeck

Or you could add another array to store the suits as suggested above (although that solution does not conform to the requirements).

Edit: My initial post was incorrect -- I appologise if anyone saw it before I had a chance to correct.

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