Read and write in excel files

电子地图的简单实现，可以提供给初学者参考(Simple implementation of the electronic map, reference can be provided to beginners)

说明：  用Java语言写的经典推荐算法-BPR，常用做各大推荐算法的baseline.(The classic recommendation algorithm written in Java language - BPR, is commonly used as the baseline for major recommendation algorithms, it may be helpful for your study.)

java自带类3des加解密 java自带类3des加解密 java自带类3des加解密(java class comes 3des encryption 3des decryption java java class comes with its own class 3des encryption and decryption)

java实现的截图，远程监控等功能，值得大家学习(java realize screenshot, remote monitoring and other functions, it is worth U.S. study)

翁剀JAVA语言那门课程的教案 很多人都看多他的视频教程可惜没有ppt的教案，终于找到了(Weng Kai Java language course that the lesson plans many people have read his Video Guide Unfortunately ppt Education has finally found)

Dual Direction Download. split file into blocks and download from first and last block.usage:cloud servers download from replications

建立快速索引，FastIndex为抽象类，AscFastIndex和DescFastIndex分别为两个实现(Quick Indexing. FastIndex is an abstract class and AscFastIndex and DescFastIndex are two implementations respectively.)

简单的21点游戏，通过控制台输入输出，用于对java基础知识的学习和练习(Simple 21-point game, input and output through the console)

基于struts的新闻发布，适合初学者，稍作修改可以作为自己的网站(struts on the press releases, for beginners, to make some modifications as their own websites)

音乐播放器完全可以运行，速度很快，效果很好(The music player can run very fast, with good results)