interface Foo {
static void bar();
}class Baz implements Foo {
public static void bar() {
// nothing
}
}Won't compile. This is the whole point and why Singletons generally should be preferred. This also shows why static methods are not "overridden".
At 04:59 PM 7/9/03 -0400, you wrote:
> > > OO programs should be made up of objects passing > > > messages to other objects, not calling global functions. > > > >I would argue a Singleton is no better in this respect. > > > >The fact that they're instantiated into an object, > >don't make Singletons any less "global" than static > >methods. > > Yes, it does. You can code a singleton and change the code without > changing the interface. You cannot do that with static > methods. Static > must remain static, the singleton can change, depending on > how you code it.
I understand and appreciate the benefits of Singleton objects over static methods. Let's rephrase my comment to what I should've said in the first place :)
"The USE of the Singleton class is still no less global than using static methods."
Foo.getInstance().bar(); // vs. Foo.bar();
Huge difference...
-TPP
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