Sobrejanhavi

Descrição

In Java, an interface is a reference type, similar to a class, that can contain only constants, method signatures, default methods, static methods, and nested types. Interfaces cannot contain instance fields or constructors. Interfaces are a way to achieve abstraction and multiple inheritance in Java.

What is an Interface?
An interface in Java is a blueprint of a class. It contains static constants and abstract methods. The interface does not contain any concrete methods (methods with bodies) by default, but it can include default and static methods starting from Java 8.

Key Points about Interfaces:
Abstract Methods: Methods in interfaces are abstract by default (i.e., they do not have a body).
Multiple Inheritance: A class can implement multiple interfaces.