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记账：记录收入支出情况，随时可查看账单明细(Bookkeeping: recording income and expenditure, the details of the bill can be viewed at any time)

说明：  这是head first design patterns源码，讲解了java23种设计模式(23 design patterns in Java)

carrot2是一款开源的聚类可视化搜索引擎，并提供了java API以供开发使用。内部包含所有用于carrot2开发的jar包和实例。(You can use Carrot2 Java API to fetch documents various sources (public search engines, Lucene, Solr), perform clustering, serialize the results to JSON or XML and many more. Below is some example code for the most common use cases. Please see the examples/ directory in the Java API distribution archive for more examples.)

网络爬虫小程序 有命令行版和GUI版本 （Crawler.java为命令行版本，CrawlerUI.java为GUI版本） 界面使用swing 需要Mysql数据库(Web crawler applet command line version and GUI version (Crawler.java the command line version, CrawlerUI.java GUI version) requires Mysql database interface using swing)

apache-tomcat-7.0.57

java编程的的详细图片,用于学习java(Detailed pictures of Java programming, used to learn java)

Java Swing是目前图形界面设计的主流开发工具，本书从实用的角度出 发，通过大量实例全面介绍Java Swing中各种组件的应用及图形界面的开发 技术。(Java Swing GUI design is currently the mainstream of development tools, from a practical point of view the book Hair, comprehensive introduction and development of various components of Java Swing application and a graphical interface through a lot of examples Technology.)

用java语言实现可视化的校园导游系统，包括景点介绍和最短路径等。(Visualization using java language campus tour guide system, including the introduction and the shortest path and other attractions.)

GPS定位，在android4.4下编译通过，可供参考学习(GPS positioning, android4.4 compiler, available for reference study)

一个使用spring-security管理权限控制的具体示例(A concrete example of using spring-security to manage permission control)