Most Android developers will use Java to write their apps. Java is an object oriented programming language. But what precisely does that mean?

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 ...

“Object-Oriented Programming (OOP) has been created with one goal in mind -- to manage the complexity of procedural codebases. In other words, it was supposed to improve code organisation ...