Trivial question about interfaces

Question

Now, I'm aware that, by default, interfaces are final and static. static because they cannot be instantiated, and final because I can only declare constant variables within them.
My questions are:

- Do I need to explicitly declare "public final static interface", or I just declare "public interface" and it is set final and static implicitly?

-If I do need to declare it explicitly, do I need to do that only if I want to have constant values within it, or in any case (e.g. interface with only functions) ?

Answer 1

So if I was willing to modify myInterface.hello, I would not be able, because that's final. right?

Answer 2

Ok thank you guys, this has cleared up my mind ❤️