采用Java实现的ID3决策树算法，基本实现了原理，支持分类，只支持标称型变量。-Java implementation using ID3 decision tree algorithm, the basic realization of the principle, support the classification, only support a nominal variable.

决策树算法的实现，运用java语言，实现c4.5算法-Achieve decision tree algorithm, using java language, to achieve c4.5 algorithm

zijizai da si de shi hou 使用java实现的决策树算法,-Using java to achieve the decision tree algorithm