Why can't declare a Static method in Interface?

[Mihir Patel]

Hi,

1) Please give me a reason why we can't declare a static method in Interfaces. and,
2) Why member variables in interface are Static and Final?

Thanks..

[Ananth Chellathurai]

Hi Mihir,
Static methods must have bodies. The methods in interfaces don't have bodies, and are thus not static methods. They are actually public abstract methods.

[Campbell Ritchie]

. . . and public abstract methods must be implemented in a subclass, which you can only do for instance methods, so they can't be static.

[Mihir Patel]

Thanks Ananth and Ritchi...

Please someone answer me for the below 2nd question in this post.

2) Why member variables in interface are Static and Final?

Thanks.

[Seetharaman Venkatasamy]

Mihir Patel wrote:
Why member variables in interface are Static and Final?

Interface cant be instantiated, so variable must assigned to a value in static context and it is final because, variables in interface are constant!

[Matthew Brown]

Anything other than constants - which is effectively what static, final variables are, are implementation details. And interfaces don't contain any implementation.