Book Image

Learn C# Programming

By : Marius Bancila, Raffaele Rialdi, Ankit Sharma
5 (1)
Book Image

Learn C# Programming

5 (1)
By: Marius Bancila, Raffaele Rialdi, Ankit Sharma

Overview of this book

The C# programming language is often developers’ primary choice for creating a wide range of applications for desktop, cloud, and mobile. In nearly two decades of its existence, C# has evolved from a general-purpose, object-oriented language to a multi-paradigm language with impressive features. This book will take you through C# from the ground up in a step-by-step manner. You'll start with the building blocks of C#, which include basic data types, variables, strings, arrays, operators, control statements, and loops. Once comfortable with the basics, you'll then progress to learning object-oriented programming concepts such as classes and structures, objects, interfaces, and abstraction. Generics, functional programming, dynamic, and asynchronous programming are covered in detail. This book also takes you through regular expressions, reflection, memory management, pattern matching, exceptions, and many other advanced topics. As you advance, you'll explore the .NET Core 3 framework and learn how to use the dotnet command-line interface (CLI), consume NuGet packages, develop for Linux, and migrate apps built with .NET Framework. Finally, you'll understand how to run unit tests with the Microsoft unit testing frameworks available in Visual Studio. By the end of this book, you’ll be well-versed with the essentials of the C# language and be ready to start creating apps with it.
Table of Contents (20 chapters)

Chapter 6: Generics

In the previous chapter, we learned about OOP in C#. In this chapter, we will explore the concept of generics. Generics allow us to create classes, structures, interfaces, methods, and delegates in such a manner that they will work in a type-safe environment with different data types. Generics were added as a part of the C# 2.0 release. It promotes code reusability and extensibility and is one of the most powerful features of C#.

We will learn about the following concepts in this chapter:

  • Generic classes and generic inheritance
  • Generic interfaces and variant generic interfaces
  • Generic structures
  • Generic methods
  • Type constraints

By the end of this chapter, you will have gained the skills necessary to write generic types, methods, and variant generic interfaces and to use type constraints.