What is an interface in OOP?

Object Oriented Programming Questions



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What is an interface in OOP?

In object-oriented programming (OOP), an interface is a collection of abstract methods that define a contract for classes to implement. It acts as a blueprint for classes, specifying the methods that must be implemented by any class that implements the interface. An interface defines the behavior that a class should exhibit, without providing any implementation details. It allows for the concept of multiple inheritance, as a class can implement multiple interfaces. Interfaces enable code reusability, modularity, and flexibility in OOP.