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NNTP-Posting-Date: Tue, 16 Aug 2011 11:30:17 -0500
Date: Tue, 16 Aug 2011 09:30:15 -0700
From: Patricia Shanahan <pats@acm.org>
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Subject: Re: Using Enumerated Types as Array Indexes
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On 8/16/2011 7:53 AM, KevinSimonson wrote:
...
> Java is a pretty handy language in its own right.  But in Ada one
> could define arrays to be indexed by enumerated types.  Can Java do
> that?  If not, why not?
>
> I wrote a piece of code that implements an array of<String>s, indexed
> by objects of class<Coord>, an enumerated type, that I'm including
> below.  Obviously the functionality of this class could be copied to
> make it possible to create _virtual_ arrays of _any_ element class,
> indexed by _any_ enumerated type.  Isn't this precisely the thing
> generics were designed for?  But how does one write a generic class to
> implement an array indexed by enumerated types?
...

Why not use java.util.EnumMap<Coord,String>?

Patricia