In object technology, a variable used by an instance of a class. It holds data for a particular object. Contrast with class variable. See class. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other ...

Variables are the bread and butter of coding. Without variables, apps would have no interactivity and no way of manipulating information. Therefore, learning about variables in Java should be among ...

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs. Abstract classes and ...

It's not good enough to simply write code that works. That code must be easily maintained, enhanced and debugged when problems happen. One of the reasons why object-oriented programming is so popular ...

Learn how to use lazy instantiation and eager instantiation in your Java programs. Which approach is better? It depends on the scenario. When instantiating Java objects that are expensive in terms of ...