It’s a 25-year-old principle of object-oriented (OO) design that you shouldn’t expose an object’s implementation to any other classes in the program. The program is unnecessarily difficult to maintain ...

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, ...

Writing a Java application (see Android) that consumes a JSON API usually involves mapping the JSON objects to Java classes for use in the software. This is a tedious and repetitive task to say the ...