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Newsgroups: comp.lang.java.programmer
From: Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at>
Subject: Re: setSize ArrayList, when will it come?
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Jan Burse <janburse@fastmail.fm> wrote:
> Andreas Leitgeb schrieb:
>> In*that*  case, I'd use a plain array, sized to say 2048 and
>> just index into it.
> But I guess the fixed size assumption is not possible
> here. The array might or might not filled at all.

Is that now about an odd chance that the array/ArrayList might 
grow beyond the initial estimate?  Or is that about other code
(that sees the ArrayList) that may be relying on that the last
non-null element is at position "size()-1" ?

If the former: for an odd-chance event, doing
  addAll(...nCopies(...))
is good enough.

If the latter: stick to Vector ;-/  Even if ArrayList.setSize()
was ever added, that would surely happen too late for your project.