Discover what an interface in Java is and how it enhances code abstraction. Learn its importance, benefits, and implementation with practical examples. An Interface in Java is an abstract type that defines a set of methods a class must implement. In this tutorial, learn what is an Interface and how to implement Interface in Java with example program. Also know the difference between Class and Interface . In Java , an interface is a reference type similar to a class that can contain only constants, the method signatures, default methods, and static methods, and its Nested types. In interfaces , method bodies exist only for default methods and static methods. Writing an interface is similar to writing to a standard class.
