Interface|Java programming language|SNS INSTITUTIONS

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An Interface in Java programming language is defined as an abstract type used to specify the behaviour of a class. An interface in Java is a blueprint of a behaviour. A Java interface contains static constants and abstract methods.

Key Properties of Interface:

The interface in Java is a mechanism to achieve abstraction.

By default, variables in an interface are public, static, and final.

It is used to achieve abstraction and multiple inheritance in Java.

It supports loose coupling (classes depend on behavior, not implementation).

In other words, interfaces primarily define methods that other classes must implement.

An interface in Java defines a set of behaviours that a class can implement, usually representing an IS-A relationship, but not always in every scenario.