MovePoint

List / ClassLibrary 信息传递， 页面交互(List/ClassLibrary information transfer, page interaction)

简单的视频播放器,对视频开发不是很明白的人很有帮助(simple videoplayer，very helpful for those who are learning video developing)

java io体系中的File类的操作，一个个的小例子，便于初学者学习(File class in java io system operation, a small example easy for beginners to learn)

微信支付退款接口java实现,微信官方文档提供，仅供参考(java weixin pay tuikuan interface,2016.06.28)

支持中英文一键切换，备份和还原MS数据库，客户端调用Jasper模板打印pdf(Support one-click switch between Chinese and English, backup and restore MS database, client calls Jasper template to print pdf)

Has Positional Pred Checker extends X Path Visitor Source Code for Andriod.

drawplot_demo 代码，可能有点乱(drawplot_demo code, may be a bit messy)

2.设计一个9x9的棋盘窗口，用黑白相间颜色填充棋盘。棋盘大小为600x600，标题为“棋盘”，窗口大小不可改变。程序文件命名为Exe8_2.java。(2. Design a 9x9 board window, filling the board with black and white colors. Board size is 600x600, titled chessboard , the window size can not be changed. Program file named Exe8_2.java.)

简单的实现了一般的串口通讯

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