This method can be used to make a credit card number validation.

Using JAVA Netbean 6.1 to create ChatRoom GUI. This application can learn how to use Netbean IDE and operate the thread API.

北大青鸟一期JAVA课本的整本书的上机练习，主要是做一个商店的管理系统-Beida Jade Bird textbooks JAVA a whole book on machine exercises, mainly to make a store management system

java在线考试系统-Online Examination System

成绩管理系统-部分一: 使用了struts,hibernate,spring等技术。 (因为23MB上传多次均失败，故分成3部分上传)-Performance management system- part 1: the use of struts, hibernate, spring, such as technology. (Because many times have 23MB upload failure, it is divided into 3 parts uploaded)

Java开发图文混排的编辑器-Java developers photo-text editor

java 的关于web serive教程-java tutorials on the web serive

JAVA计算器，非常简单-Java calculators, and is very simple

365天一天学会一个小算法，不错的-Institute a day 365 days a small algorithm, good

用java做的网页即时聊天系统。可以用于学习网页即时聊天功能的开发-Java web page to do with real-time chat system. Pages can be used to study the development of real-time chat

java做的一个小程序，适合初学者！-a small program base on java. adapt for beginner.