Summary: Building Your Own Types with Object-Oriented Programming

This section covered object-oriented programming (OOP), where you learned to create custom types that model real-world entities. You explored different types of members that a type can have, such as fields for storing data and methods for performing actions.

You also examined key OOP concepts like aggregation and encapsulation, which help organize and structure code clearly. In addition, you learned how to use operators as a simpler alternative to methods for basic functionality.

The section introduced several modern C# features, including:

• Enhancements in relational and property pattern matching

• Init-only properties

• The use of records

Let’s recap the key takeaways: