Interfaces in Java

In this tutorial, we will discuss interfaces in Java.

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Interfaces
- refer to specific behavior or trait
- declares a fixed set of methods
- all implementing classes must define them
- used to refer multiple related or unrelated objects
- think of it as a contract that is to be adhered to

Features of interfaces in java

- Establishes the expected behavior
- Promotes flexibility in design
- Makes application more manageable
- Java 8 interfaces allow default and static methods in interfaces

Notes:

- A class can inherit from single base class
- A class can implement any number of interfaces
- An Interface can extend another interface
- An interface cannot define constructors like class

- Establishes the expected behavior
- Promotes flexibility in design
- Makes application more manageable
- Post Java 8
- Add more methods without breaking the existing implementations
- Provision for default methods
- Provision for static methods

[nikhilsaxena]

Deepak Sir I am learning java from your tutorials and they are really helpful. Kindly upload more videos of this series

[santoshbhagawat-bomblekar]

Slightly good explanation of interfaces than kud

[ankitgaur]

Sir Kindly Make the videos on Encapsulation

[maruatajongte]

Is this tutorial going to be continued..