Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package new_pack; import weka.classifiers.trees.J48; /** * * @author Home */ public class repro { public static void main(String[] args) throws Exception { System.out.println("count:"); J48 tree = new J48(); tree.buildClassifier(null); } }