Question

what is the use of interfaces in java

Answer 1

Answer:

Interfaces allow you to specify exactly what classes should do, without specifying exactly how they should do it.

The interface in Java is not a class. It is a series of requirements for a class that must meet the interface.

The interface cannot have instance fields or static methods, it can declare constants and describe methods.

Java does not support multiple inheritance. But each class can implement any number of interfaces.

A class implementing an interface must implement all its methods