Chapter 7. Implementing Interfaces and Inheriting Classes
This chapter is about deriving new types from existing ones using object-oriented programming (OOP). You will learn how to implement interfaces, about base and derived classes, how to override a type member, how to use polymorphism, how to create extension methods, and how to cast between classes in an inheritance hierarchy.
This chapter covers the following topics:
- Implementing interfaces
- Managing memory with reference and value types
- Inheriting from classes
- Casting within inheritance hierarchies
- Documenting your types
- Inheriting and extending .NET types
