According to the JavaBeans specification (available at http://java.sun.com/products/javabeans/), a Java Bean is “a reusable software component that can be manipulated in a builder tool.” That is a pretty broad definition, and indeed, as you will see in this chapter, beans are used for a wide variety of purposes. At first glance, a bean seems to be similar to an object. However, beans serve a different purpose. Objects are created and manipulated inside a Java program when the program calls constructors and invoke...
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