1. Data Types and Abstraction
Chapter 5

2. Abstract Data Types Attributes of a Variable Name Address Value
Lifetime
Scope
Type
Size

3. Variable Represents:
- A set of values
- A set of operations

4. Class Hierarchy

5. Object class - At the top of the class hierarchy
- All other classes are derived from Object, except Ownership

6. Object class Hierarchy

7. Object class Definition

8. Object operator definitions

9. Object class member function definitions

10. NullObject Singleton Class
- A concrete class derived from the Object abstract base class
- A class which only have one instance

11. NullObject class definition

12. NullObject class member function definition

13. Wrapper<T> class definition

14. Wrapper<T> class member function definitions

15. Int, Char, Double, and String class definitions

16. Containers - An object that holds within it other objects
- Containers can be held in other containers

17. Container class definition

18. Container class member function definitions

19. Visitors - Interacts with Container class
- Derived from abstract class Visitor
- Every visitor class has a different functionality

20. The Print Visitor

21. Visitor – IsDone()

22. Put() for Container

23. Iterators - Derived from abstract Iterator class
- An alternative to visitors
- For every concrete container class – a concrete iterator

24. Iterator Class Definition

25. The NullIterator Class

26. NullIterator class member function definitions

27. Ownership class definition

28. Purge() of Container

29. SearchableContainer class definition