Base

Base

Base

Derived

25

24

33

32

Both XXXXX and ppp will be displayed once

Prints ppp 8 times and XXXXX 7 times

Prints XXXXX 15 times

Prints ppp 15 times

Prints XXXXX 8 times and ppp 7 times

G = 3.14

G = 3.14

G = 3.145

G = 3.14

It is possible to pass as a parameter of the method proc an object which type (class B) implements the interface InterfaceEx.

The class A must implement the methods of the InterfaceEx interface

The InterfaceEx interface must implement the method proc

the practice of hiding the internal details of an object and exposing only the necessary information to the outside world.

the ability of objects to take on multiple forms.

the practice of defining objects at a higher level based on their behavior and hiding the implementation details

Public

Package

Protected

Private

Both XXXXX and ppp will be displayed once

Prints ppp 8 times and XXXXX 7 times

Prints XXXXX 15 times

Prints ppp 15 times

Prints XXXXX 8 times and ppp 7 times