Object-Oriented Programming Concepts

Objects are key to understanding object-oriented technology. Look around right now and you'll find many examples of real-world objects: your dog, your

In the real world, you'll often find many individual objects all of the same kind. There may be thousands of other bicycles in existence, all of the s

Different kinds of objects often have a certain amount in common with each other. Mountain bikes, road bikes, and tandem bikes, for example, all share

As you've already learned, objects define their interaction with the outside world through the methods that they expose. Methods form the object's int

A package is a namespace that organizes a set of related classes and interfaces. Conceptually you can think of packages as being similar to different