What is interface in java: Explore the concept of

Explore the concept of Java interfaces and learn how Java uses them to implement polymorphism and multiple inheritance. In the Java programming language, an interface is a reference type, similar to a class, that can contain only constants, method signatures, default methods, static methods, and nested types. Learn what an interface is in Java , how it differs from a class, and how to declare, implement, and extend interfaces. See examples of interfaces, methods, and fields in Java . An Interface in Java is an abstract type that defines a set of methods a class must implement. An interface acts as a contract that specifies what a class should do, but not how it should do it. It is used to achieve abstraction and multiple inheritance in Java . We define interfaces for capabilities (e.g. Comparable, Serializable, Drawable). A class that implements an interface must implement all the methods of the interface . All members of an interface are public, static, and final by ...