Java范例程序ch4.rar

java语言中servlet的用法实例，以简单日志管理系统为例说明servlet的使用-java language usage in the servlet example, a simple log management system as an example of the use of servlet

例外处理当除数为0的情况，如何进行异常处理，如何创建异常抛出类-Exceptions to deal with when the divisor is 0 the situation, how exception handling, how to create unusual type out

Jacob是使用JAVA调用COM组件的JAVA包，这是它的应用例子之四。-Jacob is to use JAVA call COM components, JAVA package, which is an example of its application of the four.

用java编写的URL连接测试程序-prepared with the URL link test procedure

这是一个MyExprText程序,,是用JAVA开发的,提大家学习-MyExprText This is a procedure that is used in Java development, we provide learning

Log4J是Apache软件基金会Jakarta项目下的一个子项目，是用Java编写的优秀日志工具包。通过Log4J可以在不修改代码的情况下，方便、灵活地控制任意粒度的日志信息的开启或关闭，然后使用定制的格式，把日志信息输出到一个或多个需要的地方。 最令人感兴趣的就 是，这些可以通过一个配置文件来灵活地进行配置，而不需要修改应用的代码。 -Log4J is the Apache Software Foundation Jakarta under a subproject is prepared to use Java logging toolkit outstanding. Log4J can be adopted without amending the code, the convenience, flexibility to control arbitrary granularity of the log information of the open or closed, then use the custom format, the log information output to one or more needed. Most interesting is that these can be through a configuration file to configure a flexible manner, without modifying application code.

演示java awt 绘图的例子，jbuilder9开发-demonstration mapping example, the development of jbuilder9

用两个缓冲区实现鼠标事件的跟踪-buffer with two mouse-tracking events

采用structs2框架，MySQL数据库。-Using structs2 framework, MySQL database.

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