What are the advantages of abstract classes over interfaces?

What are the advantages of abstract classes over interfaces?

Abstract classes allow you to provide some implementation, while interfaces only define contracts. This can reduce code duplication.

Can you give an example of when to use an abstract class?

Sure! Use an abstract class when you have a base class that should provide default behavior for derived classes.

What about interfaces? When should I use them?

Interfaces are great when you want to define a contract that multiple classes can implement, promoting flexibility and decoupling.

Are there any performance differences between using abstract classes and interfaces?

Generally, there are no significant performance differences, but abstract classes can have a slight overhead due to their implementation.

Can I use both abstract classes and interfaces in the same project?

Absolutely! You can use both to leverage their strengths, depending on your design needs.