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  1.  Home
  2. JAVA400-L
  3. June 2005

Re: Cost of instantiating

Joe,

But the cost of a lookup is less than the cost of creating another object.
Might be worth it for something like Integer(0) or Integer(1) (good chance
to find that immutable) but maybe not for Integer(12345) (waste of time to
look for).

It's also a memory vs speed tradeoff.  You save JVM memory if you can reuse
immutables.  Might be worth saving memory at the cost of slower object
creation.   Could benefit other things like garbage collection.

Paul

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