What is interface

Question

tell

Answer 1

interface are a special kind of class.

Java doesn't not support multiple heritage, but you can implements any number of interfaces.

Interfaces are abstract class (they are not implemented).

Answer 2

interface automatically makes class/methods abstract.

u can search for abstract keyword @ oracle website.

Answer 3

Interface is like a contract, you define the methods and properties and ask the classes that implement this 'contract' that also have all methods and properties.