本书重点强调Java的基础知识和应用实践以及用Java进行多媒体、图形界面、数据库和Web应用的程序设

计，并注意对新、旧知识的融会与贯通，使读者能够尽快掌握 Java 的基础知识和应用。全书分为 14章，比较全

面系统地介绍了Java的运行环境及开发工具、基本编程方法、Java面向对象程序设计的基本概念、继承与多态、

异常处理、Java API、Web 服务器和 Applet 程序、用户图形界面设计、Java 多媒体程序设计、Java 数据库程序

设计，Java Servlet程序设计以及Java Bean组件等内容。-This chapter will give you an appreciation of what the Java language is all about. Understanding

he details of what I’ll discuss in this chapter is not important at this stage　you will see all of the

opics again in greater depth in later chapters of the book. The intent of this chapter is to introduce

ou to the general ideas that underpin what I’ll be covering through the rest of the book, as well as

he major contexts in which Java programs can be used and the kind of program that is applicable

n each context.