Read and write in excel files

说明：  签到，小程序，微信，签到，企业签到，学校签到，考勤签到(Check-in, applet, Wechat, Check-in, Enterprise Check-in, School Check-in, Attendance Check-in)

web.xml配置参考文档，简单介绍web文件的配置(Web. XML configuration document reference, simple web documents introduced the configuration )

java开发的员工管理系统，公司人员配置设备配置等一些列可视化操作。(Some columns java development staff management system, device configuration, such as staffing companies visualization.)

说明：  Java编程基础，关于api中String类中的方法实现，适合Java学习着使用(Java programming foundation, about the method implementation in String class in api, suitable for Java learning to use)

说明：  编写一个复数类，可以进行复数加法和减法运算。编写一个包含main方法的类（应用程序）测试该复数类。要求该复数类至少包含一个无参的构造方法和一个带参的构造方法；数据成员包括复数的实部和虚部，为double类型；包括两个方法，分别实现复数的加法和减法运算。(Write a complex class, which can add and subtract complex numbers. Write a class (application) containing the main method to test the complex class. The complex class is required to include at least one parametric construction method and one parametric construction method; the data members include the real and imaginary parts of the complex, which are of double type; and two methods are included to realize the addition and subtraction operations of the complex respectively.)

初步学习Java的一些源代码，只作为学习利用。(The preliminary study of some Java source code, just as learning to use.)

基于JSP+JavaBean+Servlet的课程管理系统(JSP+ JavaBean+ Servlet-based course management system)

Shows a list of bug reports currently in /sdcard/bugreports.

说明：  搭建springmvc项目基本框架,用到的Jar，以及文件配置(springmvc building and user Jar files and file configuration)

jsp进销存系统,在Eclipse开发平台，连接MySQL数据库，使用JSP编写的一个进销存管理系统，实现了产品管理、供货商管理、采购管理的增删改查功能。(jsp sale system)