Multiple Inheritance Ambiguity with Interface

Question

We all know about the diamond problem regarding multiple inheritance -

   A
  / \\
 B   C
  \\ / 
   D

This problem describe an ambiguous

Answer 1

To add to existing answers about Java8 multiple inheritance with interfaces (a.k.a. how Java still avoids the diamond problem):

There are three rules to follow:

1. A class always wins. Class's own method implementation takes priority over default methods in Interfaces.

2. If class doesn't have any: the most specific interface wins

3. If above is not the case, inheriting class has to explicitly state which method implementation it's using (otherwise it won't compile)