文件格式转换

说明：  第一个Java例子程序，源文件为HelloWorld.java，可以使用 javac HelloWorld.java 进行编译，然后运行， java HelloWorld(The first example of a Java program, the source file is HelloWorld.java, you can use the javac HelloWorld.java compile and run, java HelloWorld)

说明：  java io学习实例，io各功能说明,java文件读取，FileOutputStreamDemo.java(Java IO learning examples, I each function description)

java实现R树空间索引,包含3个测试文件(rtree is completed by java)

water effect example. java code

实现用户登录界面，方便用户查找自己的信息。节省时间。(To realize the user login interface, convenient for user to find their own information. To save time. )

Tests for some buffers from the java.nio package.

If the user has a lock pattern set already, makes them confirm the existing one.

实现添加日志功能，用户能够保存自己怕忘记的事(Implementing the function of adding logs, users can save things they are afraid of forgetting.)

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

华为VAS SDK使用FAQ,使用华为mms api开发彩信业务的一些 问题 。(Huawei VAS SDK using the FAQ, use the Huawei MMS mms api business development issues.)