Arrays methods

[Tim Peierls]

On Fri, Jan 11, 2013 at 5:07 PM, Brian Goetz <brian.goetz at oracle.com> wrote:

> I think a better option is just adding a small number of methods to take
> an array and produce a stream of valid indexes:
>
>   IntStream indexes(T[])
>   IntStream indexes(int[])
>   ...
>
> Because then the user can mix and match his own:
>
>   // generate
>   Arrays.indexes(array).forEach(**i -> { array[i] = f(i) });
>

That's appealingly simple, but I worry that it's too easy to write
something like this:

    Arrays.indexes(a).forEach(i -> { b[i] = f(i) });  // oops, a is not b

And <bikeshed> isn't "indices" better than "indexes"? </bikeshed>

--tim
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