ListUtils

java语言非常有用，它的设计模式更是有效地设计开发程序的工具。(java language is very useful, it is designed to model more efficient design and development procedures.)

QuestionDB 是一个用来在数据库中存储试卷问题的程序，支持五种不同类型的问题：开放问题、多部分的开放问题、填充题、多选题和是非题。你可导出问题到 OpenDocument 文本格式。(QuestionDB is used to support the five different types of questions: open, multi-part open questions, Fill in the blanks, multiple choice and true or false question in the papers the problem of database stored procedures. You can export to OpenDocument text format.)

如何放大与缩小，及拉伸图像，java编写(How to zoom in and out, and stretch images, java prepared)

ipdatabase 二叉树快速搜索IP地址数据库 数据 数据源采用2015年广告协会制定的IP地址标准数据库，中国互联网广告行业统一采用的标准IP库。 原理 利用二叉树实现IP查询，首先将10进制IPV4地址转化为二进制构建二叉树，利用二叉树搜索进行搜索，查询时间复杂度log2n，比传统IP库n的查询速度高出一个量级。(Ipdatabase Binary Tree Fast Search IP Address Database data The data source is the standard IP address database formulated by the Advertising Association in 2015, and the standard IP database adopted by the Internet advertising industry in China. principle The binary tree is used to realize IP query. Firstly, the 10-bit IPV4 address is converted into binary to construct a binary tree, and the binary tree search is used to search. The query time complexity log2n is one order of magnitude higher than that of traditional IP library n.)

用java3d写得一个小程序，有缩放、旋转、平移等功能(A small program written by java3d, zoom, rotate, pan, etc.)

说明：  介绍了struts+hibernate+spring的整合。(Introduced struts+ hibernate+ spring integration.)

Name Parser implements String Parser Source Code for Andriod.

java 图形编程常用的，检验两条直线是否相交的java算法。(check two lines crossing each other )

赢在云端，一本描述云计算的书籍，希望对云计算入门的同学有所帮助。(Win in the clouds, a description of cloud computing books, we hope the cloud started to help students.)

连连看Java源码，很有意思，，适合初学者。。。。(Lianliankan Java source code, suitable for beginners. . . .)