C# Abstract Class with Examples

Abstract classes in C# provide a blueprint for other classes, allowing for shared functionality, default behavior, and partial implementation. They contain abstract methods, which must be implemented by derived classes, as well as non-abstract methods that can be inherited. Abstract classes are essential for code reusability, extensibility, and maintainability, differentiating from interfaces which solely define method signatures. Understanding their usage is crucial for building scalable and maintainable applications in C#.