„Gratulujemy podniesienia swoich umiejętności. Potrzebujemy facetów, którzy są gotowi zrobić wszystko”.
„Jestem pewien, że wciąż masz wiele niedokończonych zadań. Czas dokończyć niektóre z nich!”
16
Zadanie
Java Collections, poziom 5, lekcja 15
Niedostępne
Factories (part 1)
Hi!
Now you're going to dig into the Factory Method pattern. Let's take people as an example.
We'll determine what type of person someone is depending on his or her age.
In this task, we'll prepare the data that we'll use in the factory.
1. Create a shared Human interface for all types of people.
16
Zadanie
Java Collections, poziom 5, lekcja 15
Niedostępne
Factories (part 2)
1. Create a public MaleFactory class in the male package with a public getPerson method that accepts one int age argument and
returns an appropriate object of a class implementing the Human interface.
8
Zadanie
Java Collections, poziom 5, lekcja 15
Niedostępne
Factories (part 3)
1. Create a female package and create KidGirl, TeenGirl, and Woman classes in it by analogy with the classes in the male package.
2. Create a FemaleFactory in the female package by analogy with MaleFactory and using the same principle for getting objects.
8
Zadanie
Java Collections, poziom 5, lekcja 15
Niedostępne
Factories (part 4)
1. At the root of the task, create an AbstractFactory interface and move the factories' common method into it.
2. Implement the AbstractFactory interface in both factories.