Questions

1. What are the benefits of TDD?
2. What is the purpose of interaction diagrams in UML?
3. What's the difference between a composition and aggregation?
4. How would you describe the Liskov substitution principle?
5. Let's suppose you are given the class Animal, and the class Monkey. The latter describes a particular animal that jumps on trees. Does inheriting a Monkey class from an Animal class contradict the open-closed principle?
6. Apply the factory method on the Product class with its subclasses that were discussed in this chapter.