Unit 12 - The case study: part 3

Question 1

List the architectural styles and design patterns mentioned in the implementation described above.

Answer 1

Call-return, layered, MVC and Facade.

Question 2

What levels of visibility can attributes have?

Answer 2

. private – visible only to the class and objects of the same class

. package – visible to classes and objects in the same Java package

. protected – visible to classes and objects in the same Java package and to the class’s subclasses and their instances anywhere

. public – visible to all classes and their instances.