Trail: JavaBeans(TM)

JavaBeans™ makes it easy to reuse software components.JavaBeans™使重用软件组件变得容易。Developers can use software components written by others without having to understand their inner workings.开发人员可以使用他人编写的软件组件，而无需了解其内部工作原理。

To understand why software components are useful, think of a worker assembling a car.要理解软件组件为什么有用，请想象一个组装汽车的工人。Instead of building a radio from scratch, for example, she simply obtains a radio and hooks it up with the rest of the car.例如，她没有从头开始制造收音机，而是简单地获得一台收音机并将其与汽车的其余部分连接起来。

This trail describes JavaBeans using the following lessons:本教程介绍了使用以下课程的JavaBeans：

➤ Quick Start快速起步 provides a speedy introduction to JavaBeans by showing how to build applications with NetBeans.通过展示如何使用NetBeans构建应用程序，快速介绍了JavaBeans。

➤ Writing JavaBeans Components编写JavaBeans组件 describes the coding patterns used for bean properties, methods, and events.描述用于bean属性、方法和事件的编码模式。It also outlines the use of a BeanInfo to customize the development experience in a builder tool.它还概述了如何使用BeanInfo在builder工具中定制开发体验。

➤ Advanced JavaBeans Topics高级JavaBeans主题 covers bean persistence, long term persistence, and customization.包括bean持久性、长期持久性和定制。