public methods in package-private classes

Question

Does it make a difference to mark methods as public in package-private classes?

class SomePackagePrivateClass
{
    void foo();          // pack         


        

Answer 1

Another case where the method has to be public is when you are creating a package private implementation of some public class or interface. Since you are not allowed to reduce the visibility of overridden methods, these have to be public.