Re: Extending Arrays
Lew wrote:
Daniel Pitts wrote:
Lew wrote:
Daniel Pitts wrote:
What other use-case for arrays can you think of that shouldn't be
wrapped by a more specific class?
Any place you'd use ArrayList but not change its size once filled.
List<MyType> myFixedSizeList = Arrays.asList(new MyType[32]);
Even if you didn't want to wrap it with List semantics, you would
probably want to wrap it with something specific.
Probably not, actually.
Also, thats not a real use-case, thats simply an example of something
that standard ArrayList doesn't fix as is.
It's a real use case. There's no need for ArrayList or anything else to
"fix" it because it isn't broken. Arrays are simple enough to use that
when they fit, there's no reason to go hunting around for more
complicated solutions.
One case I use an array is for a high-performant Vector3D class, where
the x,y,z components are all stored in a double[].
Ok, so you didn't need my help answering your own question.
My point is that the array should be wrapped by a more specific class
(as my Vector3D wrapped the double[]). Not that they shouldn't ever be
used.
My point is more that they shouldn't be passed from one class onto
another (except maybe to the java.util.Arrays class).
--
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