What are the differences between abstract classes and interfaces in C#?
An example of an AI chatbot conversation about C# abstract classes and interfaces.
What are the differences between abstract classes and interfaces in C#?
Abstract classes can provide default implementations, while interfaces cannot. Interfaces define a contract without implementation.
Can you give me an example of when to use an abstract class instead of an interface?
Use an abstract class when you want to share code among closely related classes. For example, a base class 'Animal' could have common methods.
What about multiple inheritance? How do abstract classes and interfaces handle that?
C# allows multiple interface inheritance but only single class inheritance. You can implement multiple interfaces in a class.
Are there any performance differences between using abstract classes and interfaces?
Generally, the performance difference is negligible. The choice should be based on design rather than performance.
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