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 ...

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 ...

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, ...