What are the differences between abstract classes and interfaces? When would you choose one over the other, and why?

Question

Accepted Answer

Abstract class is used when there is a need for default implementation, while interfaces are used for multiple inheritance.

Abstract classes can have both abstract and non-abstract methods, while interfaces can only have abstract methods.
Abstract classes can provide default implementations for methods, while interfaces cannot.
Interfaces allow a class to implement multiple interfaces, but can only inherit from one abstract class.
Use abstract classes when there is a need for a common base implementation, and interfaces when multiple inheritance is required.

Accepted Answer

Abstract class to be extended to the drived class and override

Interface - implement the method in our class

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