这是一个用java做的二叉树的遍历的实例！-This is a binary tree using java to do the traversal examples!

数据挖掘技术-粗糙集属性约减算法，对其描述以及算法实现！-rough set algorithm

可嵌入weka 的粗糙集分类算法程序 -Can be embedded in the rough set classification algorithm weka program

Rough set reduce。本程序使用Java语言编写的。测试时，请修改代码中测试数据路径。或者将测试数据方知道c盘目录下面。(Rough set reduce. This procedure is written in Java language. When testing, modify the test data path in the code. Or the test data will know C directory.)