"Congratulazioni per aver migliorato le tue capacità. Abbiamo bisogno di ragazzi pronti a fare qualsiasi cosa".
"Sono sicuro che hai ancora molti compiti incompiuti. È ora di finirne alcuni!"
16
Compito
Java Collections, livello 5, lezione 15
Bloccato
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
Compito
Java Collections, livello 5, lezione 15
Bloccato
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
Compito
Java Collections, livello 5, lezione 15
Bloccato
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
Compito
Java Collections, livello 5, lezione 15
Bloccato
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.