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I have an array of Record[] objects that I want to sort. Each Record object
contains an int getPoints() method and I want to sort an array of these
records into descending points order.

Would I be correct in saying I implement the Comparable interface in my
Record class? If so what exactly do I include in the overridden compareTo
method? What integer value do I return? Also, how do I use the compareTo
method externally to do the sort?

Thanks in advance.

Chris G wrote:

> I have an array of Record[] objects that I want to sort. Each Record
> object contains an int getPoints() method and I want to sort an array of
> these records into descending points order.
>
> Would I be correct in saying I implement the Comparable interface in my
> Record class? If so what exactly do I include in the overridden compareTo
> method? What integer value do I return? Also, how do I use the compareTo
> method externally to do the sort?
>
> Thanks in advance.

Read the API docs and it should become clear:

http://java.sun.com/j2se/1.4.2/docs/...omparable.html
http://java.sun.com/j2se/1.4.2/docs/...omparator.html
http://java.sun.com/j2se/1.4.2/docs/...il/Arrays.html

--
Kind regards,
Christophe Vanfleteren

On Tue, 13 Apr 2004 12:01:49 +0100, "Chris G" <>
wrote or quoted :

>Would I be correct in saying I implement the Comparable interface in my
>Record class? If so what exactly do I include in the overridden compareTo
>method? What integer value do I return? Also, how do I use the compareTo
>method externally to do the sort?

See http://mindprod.com/jgloss/comparable.html
http://mindprod.com/jgloss/comparator.html

--
Canadian Mind Products, Roedy Green.
Coaching, problem solving, economical contract programming.
See http://mindprod.com/jgloss/jgloss.html for The Java Glossary.