What is the purpose of an interface in OOP?
What is the purpose of an interface in OOP?
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Aryan Kumar
25-Jun-2023An interface in object-oriented programming (OOP) is a contract that defines a set of methods that a class must implement. Interfaces are used to achieve greater code reuse and flexibility in OOP. By defining a set of methods in an interface, classes can inherit that behavior without having to reimplement it. This can save time and effort, and it can also help to ensure that the behavior is implemented consistently across all classes that implement the interface.
Interfaces can also be used to enforce certain constraints on classes. For example, we might have an interface called Drawable that defines a method called draw(). This method would be used to draw an object. We could then have classes that implement the Drawable interface, such as Circle and Square. These classes would have to implement the draw() method, which would ensure that they can be drawn.
Here are some of the benefits of using interfaces:
Here are some examples of when interfaces might be used: