Part III

Working with the Big Picture: Object-Oriented Programming

Sure, you’ve written a nice application, but does your code really work? There’s no such thing as too much testing, and if your tests are well-organized, you’re on your way to having a great app. To find out how your tests can be well organized, visit www.dummies.com/extras/java. The article on JUnit testing gives you the inside scoop.

In this part …

• Find out what classes and objects are (without bending your brain out of shape).
• Find out how object-oriented programming helps you reuse existing code (saving you time and money).
• Be the emperor of your own virtual world by constructing brand-new objects.