The Object-Oriented Thought Process

9. Building Objects

The previous two chapters cover the topics of inheritance and composition. In Chapter 7, “Mastering Inheritance and Composition,” we learned that inheritance and composition represent the primary ways to build objects. In Chapter 8, “Frameworks and Reuse: Designing with Interfaces and Abstract Classes,” we learned that there are varying degrees of inheritance and how inheritance, interfaces, abstract classes, and composition all fit together.

This chapter covers the issue of how objects are related to each other in an overall design. You might say that this topic was already introduced, and you would be correct. Both inheritance and composition represent ways that objects interact. However, inheritance and composition have ...