the last appendix, or at least one of them, in Bruce Eckel's
"Thinking in Java". i didn't see it in the on line current copy.
i don't have the book here, but it has relative timings for
most operations. new Array is actually more expensive than
new Object. the base, as i recall, is simple assignment. and
i don't recall whether it states which VM is described, nor
what differences might exist among VM's. new Object is
about 3,000 and new Array is about 5,000; if memory
serves. the next most expensive was a few hundred.
robert young
On Wednesday, December 22, 1999 2:03 PM, Steven Owens [SMTP:[EMAIL PROTECTED]] wrote:
> Craig McClanahan writes:
>
> > The answer, of course, is "it depends on your application." A couple of things
> > to think about: [...good info...]
>
> Something I've been kind of wanting for a while is a relative
> guide to how "expensive" various things are in java, like a method
> call vs. a variable reference vs. instantiating an object vs. cloning
> an object vs. etc. Not so much absolute values as relative cost, just
> to give me a guide for the general impact of such things.
>
> Does anything like this exist? I've read Dennis Sosnoski's
> articles and there's something about this at
> http://www.sosnoski.com/Java/Session/Specifics2.html, but is there
> anything more comprehensive?
>
> Steven J. Owens
> [EMAIL PROTECTED]
> [EMAIL PROTECTED]
>
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