06

Implementing Interfaces and Inheriting Classes

This chapter is about deriving new types from existing ones using object-oriented programming (OOP). You will learn about defining operators and local functions for performing simple actions and delegates and events for exchanging messages between types. You will learn how to implement interfaces for common functionality. You will learn about generics and the difference between reference and value types. You will learn how to inherit from a base class to create a derived class to reuse functionality, how to override an inherited type member, and how to use polymorphism. Finally, you will learn how to create extension methods, and how to cast between classes in an inheritance hierarchy.

This chapter ...

Get C# 9 and .NET 5 - Modern Cross-Platform Development - Fifth Edition now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.