Why define a abstract interface in Java

Question

As we know, interface is to define some method, but some interface defined as a abstract interface, but why ? for example:

public abstract interface Test{

}

what is the advantage for using abstract to define a interface?

score 4 · Accepted Answer · edited Jun 20 '20 at 09:12

4

There is no need to add that abstract key word. It's redundant there.

Interfaces are implicitly abstract.

Every interface is implicitly abstract.

This modifier is obsolete and should not be used in new programs.

edited Jun 20 '20 at 09:12

Community

answered Oct 05 '13 at 08:43

Suresh Atta

score 0 · Answer 2 · edited May 23 '17 at 11:50

0

Also see https://stackoverflow.com/a/18778307/805378 to get the difference between abstract and interface.

edited May 23 '17 at 11:50

Community

answered Oct 05 '13 at 09:03

Piyush

score -1 · Answer 3 · answered Oct 05 '13 at 08:58

-1

to make a class 100% abstract without using 'abstract'.

answered Oct 05 '13 at 08:58

Chowdappa

3 Answers3