Re: Abstract class to save resouces

Lew <>
Fri, 23 May 2008 22:03:00 -0400
mich wrote:

"Jason Cavett" <> wrote in message
On May 23, 9:56 am, "mich" <> wrote:

Would an abstract class with static methods help save resources? I am
thinking that taking a bunch of static methods out of a class that gets
instantiated several times would save some resources.

I'm taking a bit of a guess at this, but I would thank that it
wouldn't really save resources. Having a static method in an abstract
class lets you access that method statically (obviously), but if you
have to instantiate multiple children classes, you're going to still
have multiple references to these children. So, that reference size
is still going to be the same.

In this case I am not creating any children classes. It would be a class
whose methods are called. by other classes, so I am thinking that it would
save some resources.

It would not. Also, it is better to make it a concrete class rather than an
abstract class, with a private constructor to prevent instantiation. (See
Joshua Bloch's /Effective Java/, Item 3: "Enforce noninstantiability with a
private constructor".)


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