calculator

Extension Registry extends Extension Registry Lite.

java 连接阿里云的mqtt服务(客户端源码)

说明：  等值线的工具类，其中包括温度、湿度、风速风向等(Tools for contours, including temperature, humidity, wind speed and direction, etc.)

用于生成gexf格式的数据文件，为后续的可视化开发服务(Used to generate data files in gexf format, serving for subsequent visualization development)

link Priority Thread Factory Source Code for Andriod.

基于zkonline的指纹识别系统，有demo文件，指纹认证，登陆界面等等(base on zkonline finger verification system, including demo documents and finger verification and login interface)

Javaweb的公交管理系统，可以实现公交线路的查询以及公交车信息的增删改查(The bus management system of Javaweb can realize bus route query and bus information additions and deletions)

ant1.7 , built utils

运用JavaWeb中多线程的知识完成，实现文件的多线程下载，其中可选择下载时线程的数量，暂停下载，以及删除下载任务等。(Completion of the knowledge using JavaWeb multi-threaded, multithreaded file download, which can choose to download the number of threads, pause a download, as well as remove the download task.)

Java程序，极其简单的Java小程序，仅供入门参考(Java program, a very simple Java applet, for introductions)