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)

Summary

There is no doubt that the new C# 8 features mark an important milestone in terms of code robustness and clarity. It is not unusual for a language to become (version after version) more complex and difficult to read, but C# introduced features such as pattern matching and ranges that allow any developer to express their intent with more concise and unambiguous code.

While it is controversial, the default interface members introduced the Traits paradigm to the .NET world and addressed problems such as interface versioning, which caused developers to struggle for years.

We learned about a key feature, that is, built-in nullable reference static code analysis, which allows us to progressively review the code and dramatically cut down the number of errors due to dereferencing null references.

This was not the end of tuning the language for productivity, as we continued through the C#7 performance journey with asynchronous streams, read-only struct members, and the updates...