java please

Using Abstraction and calling inheritance (a) Create an inheritance hierarchy (using both interface and abstractions) of an interface class type called Internet (you should choose the inheritance characteristics of Internet (speed etc) by writing 2 methods and one instance variable in the interface). The derived classes should be abstract and named Home Internet and Public Internet. In the base classes, provide 2 methods that are common to all Internet-like classes, and override these in the derived classes, to perform different behaviours depending on the specific type of Internet. Then create a (derived from the above) base class MYInternet and YourInternet which are of Home Internet and Public Internet based classes respectively. Thereafter create a dynamically changing array* of Internet, upcast it to the MYInternet and Home Internet and Public Internet classes etc., and fill it with different specific types of Internet, and then call your base-class methods. (Hint: For your convenience create an initial simple class diagram for the above inheritance scenario) Internet