Top-level class C declares instance method m(), which returns an instance of local class D, which is declared in this method. Notice that m() ‘s return type is interface I, which D implements.

Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields ...

Developers who create a runnable Java class, be it for a ‘Hello World’ demonstration or to kick off a fully featured enterprise application, will enjoy the following technical benefits when using ...