The most authoritative answer in 2024
-

-
Harper Lee——Studied at the University of Melbourne, Lives in Melbourne, Australia.
So the difference is an
abstract class
can have implemented
methods whereas a
interface cannot. All of the
methods in an
interface are implicitly
abstract, so the
abstract modifier is not used with
interface methods (it could be--it's just not necessary).Sep 30, 2011
read more >>
About “abstract、can have、methods”,people ask:
QuesHub is a place where questions meet answers, it is more authentic than Quora, but you still need to discern the answers provided by the respondents.