Can an interface define required static functions?

I think the answer is no, or at least I've never seen it. But I thought I'd ask the collective wisdom of the Ranchers.

Can it? If so, how?

Thanks
Pat

Interface cannot contain static functions.
Could contain only static fields (fields in interface is always implicitly 'public static final', even if these modifiers are omitted).

Since you're asking for "collective wisdom", I'll confirm that Ireneusz is completely correct here - interfaces can never declare static methods. There's no way to do this in Java. The closest options I can think of are to either refactor to make the methods non-static, or add some reflection-based code that checks at runtime to see if a given class implements the methods you require. I don't see a way to do better.

@ Pat

See Method Declarations

Following is quote from JLS3.0

Note that a method declared in an interface must not be declared static, or a compile-time error occurs, because static methods cannot be abstract.

This has also been discussed here

Yes. I do support the above comments

Inteface methods are implicilty public and abstract and abstract methods can not be declared as static.

And the mthods should belongs to the object not the class and the static methods does not belongs to object.

Regards
Kulbir