CompareTo may return 0, alternative to TreeSet/TreeMap

Posted by Bart van Heukelom on Stack Overflow See other posts from Stack Overflow or by Bart van Heukelom
Published on 2010-06-14T20:46:48Z Indexed on 2010/06/14 20:52 UTC
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java

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sorting

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collections

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binary-trees

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red-black-tree

I need a sorted set of objects and am currently using the TreeSet. My problem is that the compareTo of the objects will often return 0, meaning the order of those two objects is to be left unchanged. TreeMap (used by TreeSet by default) will then regard them as the same object, which is not true.

What alternative to TreeMap can I use?

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