These are the classes:

Premise: There are 3 families A, B, C and 3 atomic/elementary products P1, P2, P3.

1.  For each of these products there is an interface and a class for each family.

    interface P1IF
    class P1_A implements P1IF (two more classes for B and C)
    two more interfaces for P2 and P3 and 6 more classes

2.  There is an abstract factory class and a concrete class for each family

    abstract class FactoryIF 
    concrete class Factory_A extends FactoryIF (two more classes for B and C)

3.  There is a class for product P and for the client

These are the methods:

1.  abstract P1IF create_P1 in the abstract class factory
    concrete P1IF create_P1 in each concrete factory (A, B and C)
    concrete create_P1 method calls constructor of P1 for that family

2.  (possibly final) P create_P in abstract factory
    method create_P calls create_P1, ... create_P3 and constructor of P

3.  clients declares abstract factory and construct concrete factory
    clients call method create_P of factory