Why use interface?

Akshay Hiranwal

why we use interface

3 Replies

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Pradeep Sahoo9y ago
Interface is a contract , it contains only method definition. It is easy to extend , multiple client implementation depending on the business rules . It helps us to achieve a loosely coupled solutions or design like a plug and play . Interface helps us in unit testing using mocking . Interface is used to support various design rule like dependency injection , inversion of control etc . Hope this helps you .
Tejas Trivedi9y ago
Hi Akshay,

The purpose of the interface in design is to establish the abstract contract between the provider and implementer or consumer.

The major significance of the interface is it provides loose coupling, component based programming, easy to maintain, makes code more reusable and more scalable.

So, interface makes developer's life much easier, and application be much cleaner, maintainable and extensible.

Hope, this will help you to understand the concept. Feel free to write if you have any query on this.

Don't forget to mark as answer if this helps.
Saddamhusen Uadanwala9y ago
Purposes to use Interfaces
Create loosely coupled software
Allow for pluggable software
Testability
Allow different objects to interact easily
Hide implementation details of classes from each other
Facilitate reuse of software
and many more..