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"There are too many people and too few human beings."
—Robert Zend
In order to truly understand object-oriented programming, we must define our own classes and derive objects from them. In the previous chapter you created objects from a variety of string-related classes, accessing their methods and attributes. In this chapter you will learn the fundamentals of making your own classes, using inheritance and interfaces, and you will learn about the structure of classes in the Java language.
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