What is an interface in OOP?

Can you explain what an interface is in object-oriented programming?

Sure! An interface in OOP is a contract that defines a set of methods that a class must implement, without providing the implementation itself.

Why would I use an interface instead of a regular class?

Using an interface allows for greater flexibility and abstraction. It enables different classes to implement the same set of methods, promoting code reusability and easier maintenance.

Can you give me an example of an interface?

Absolutely! For instance, you might have an interface called 'Animal' with methods like 'eat()' and 'sleep()'. Different classes like 'Dog' and 'Cat' can implement this interface with their own versions of these methods.

What happens if a class doesn't implement all the methods of an interface?

If a class does not implement all the methods defined in an interface, it will result in a compilation error, ensuring that the contract is fulfilled.