Java: extending a class and implementing an interface that have the same method

Question

Probably the following cannot be done (I am getting a compilation error: \"The inherited method A.doSomthing(int) cannot hide the public abstract method in B\"):

Answer 1

This has to do with visibility. You are using default (no modifier) visibility in C for myMethod but it needs to be public according to the interface B.

Now you might think you used the default visibility for all of them, since in neither A, B, nor C did you explicitly select one of public, private, or protected. However, the interface uses public whether or not you explicitly indicate so.