Java How to call method of grand parents? [duplicate]

Answer 1

You can't, and you shouldn't.

This is a sign of bad design. Either rename a method or include the required common functionality in another method or an utility class.

Answer 2

You can't. This is deliberate.

Class B provides an interface (as in the concept, not the Java keyword) to subclasses. It has elected not to give direct access to the functionality of A.myMethod. If you require B to provide that functionality, then use a different method for it (different name, make it protected). However, it is probably better to "prefer composition over inheritance".

Answer 3

I'm not sure you can. Java makes all methods virtual by default. This means that the most simple solution will not work: Declare a variable of type A, assign your C instance to it and call myMethod will result in C.myMethod being called.

You could try to reflect type A and invoke its methods directly. It would be interesting to see what happens in this case, but I'd be surprised if the virtual dispatch wouldn't happen...