Well, I knew the difference (there are also in VB.Net), but I forgot many things.
Static methods must be also in static class, or I'm wrong?
All I seem to have realized is that it is not difficult to access everything that is static, through JavaObject or Reflector.
This, however, when they are classes of Android; in the case that I have indicated, it is a method written by a user.
I suppose I should create a library (java), with that method declared static.
I realized: I have to start again to study Java, then JavaObject and Reflector.
I'm too old and with little brain ram, I could not.
Too bad.
Thanks Erel