I think James Owen wrote:
> One other thing, something that most "old timers" even forget.  :-)  If 
> you re-write equals for a class that already exists or one that you 
> inherit then you have to re-write the hash map table.

Of course what jco means is that if you override equals(), you should
override hashCode() as well; the details of doing this correctly are
spelled out quite clearly in the Javadocs for the Object class. Joshua
Bloch's book is, indeed, good as well.



---------------------------------------------------------
Ernest Friedman-Hill  
Advanced Software Research          Phone: (925) 294-2154
Sandia National Labs                FAX:   (925) 294-2234
PO Box 969, MS 9012                 [EMAIL PROTECTED]
Livermore, CA 94550         http://herzberg.ca.sandia.gov

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