编写一个表示三角形的Trangle类

单例设计模式，剑指OFFER的第二题，懒汉式和饿汉式(Singleton design pattern, to prove safety OFFER second question, the lazy and hungry style of Han)

Thinking in Java是java学习的最经典资料，该共享为第四版(Thinking in Java is the most classic java learning data, the share for the fourth edition)

JAVA看法很难贫困送的发了国库开了四大法国环境法国号就间接口国画家科-JAVA views difficult for the poor to send the treasury opened a four French Environment French on the interface between artists Branch

radix_sort 排序算法的Java实现(radix_sort)

用于java初学者进行学习，通过类的继承和多态来了解不同图形间面积的求法以及其相应的联系。

安卓射击类小游戏，希望对安卓初学者研究有帮助(Andrews Shooting game, Andrews beginners)

说明：  一个简单的P2P聊天程序,使用java开发,基于UDP,可以穿越锥形内网,可以方便的扩展成多种用途.(a simple peer-to-peer chat program, the use of java development, based on UDP, to pass through the network within the cone can be easily expanded into a multi-purpose.)

推箱子课程设计文档。之前那个传的错误了。这个是更正的。不好意思(Sokoban curriculum design document. Before that pass a mistake. This is corrected. Feel embarrassed)

自主开发的利用java 3d api实现的有windows窗口界面的简单3d贪吃蛇小游戏，完整的实现了贪吃蛇的游戏功能，对于研究java 3d是一次较为新的探索，请感兴趣的朋友下载

EasyRec是一个开源推荐系统，它集成了从数据抽取，模型训练，推荐输出接口等功能，能够完成推荐系统的一站式服务。