When you have questions about C# 9.0 or .NET 5, this best-selling guide has the answers you need. C# is a language of unusual flexibility and breadth, but with its continual growth there's so much more to learn. In the tradition of O'Reilly's Nutshell guides, this thoroughly updated edition is simply the best one-volume reference to the C# language available today.

Organized around concepts and use cases, C# 9.0 in a Nutshell provides intermediate and advanced programmers with a concise map of C# and .NET that also plumbs significant depths.

• Get up to speed on C#, from syntax and variables to advanced topics such as pointers, records, closures, and patterns
• Dig deep into LINQ with three chapters dedicated to the topic
• Explore concurrency and asynchrony, advanced threading, and parallel programming
• Work with .NET features, including regular expressions, networking, spans, reflection, and cryptography

Table of Contents

1. Introducing C# and .NET

2. C# Language Basics

3. Creating Types in C#

4. Advanced C#

5. .NET Overview

6. .NET Fundamentals

7. Collections

8. LINQ Queries

9. LINQ Operators

10. LINQ to XML

11. Other XML and JSON Technologies

12. Disposal and Garbage Collection

13. Diagnostics

14. Concurrency and Asynchrony

15. Streams and I/O

16. Networking

17. Assemblies

18. Reflection and Metadata

19. Dynamic Programming

20. Cryptography

21. Advanced Threading

22. Parallel Programming

23. Span<T> and Memory<T>

24. Native and COM Interoperability

25. Regular Expressions