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Thread: Sorting an array of objects
11-13-2010, 03:53 AM #1
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- Nov 2010
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Sorting an array of objects
I'm working on a card game, and I need to sort an array that contains card objects. The array needs to be sorted based on the numerical value of each card in ascending order. I have a method, getValue, that returns the value of the card at the element that the method is called upon.
But, I am unsure of how exactly to sort the data correctly, as I am not too familiar with sorting in Java. Any help would be great.
EDIT: Actually, I just figured it out on my own. I just created a new array that contained just the numerical values of the array of cards. Then I just simply sorted that array of ints, since in this case I only cared about the value of the cards, not the suit.
Last edited by ADAMWD; 11-13-2010 at 04:05 AM.
11-13-2010, 03:56 PM #2
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The multiple array juggling will work, but it will become more complicated as you get more and more dimensions.
Sorting objects in Java is very easy. A flat array uses the static Arrays.sort method in combination with a Comparator<T> or a class of type Comparable<T>. So with your Card class:
public class Card implements Comparable<Card>
// Whatever card stuffs
public int compareTo(Card b)
return a.getValue() - b.getValue(); // These can be just the members
public boolean equals(Object other)
boolean bResult = false;
if (other instanceof Card)
bResult = (this.compareTo((Card)other) == 0);
header('HTTP/1.1 420 Enhance Your Calm');
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