在调用Weka时无法找到或加载主类 [英] Could not find or load main class when calling Weka

问题描述

我为我的 Java noobness道歉，但我试图从控制台使用 Weka ，出于某种原因，我得到了以下错误：

I apologise for my Java noobness but I am trying to use Weka from console and for some reason I get following error:

Error: Could not find or load main class weka.classifiers.trees.J48

我正在尝试以下命令：

java weka.classifiers.trees.J48 -l C:\xampp\htdocs\frequencyreplyallwords.arff -T C:\xampp\htdocs\testfreqrep.arff -p 0 > C:\xampp\htdocs\output.txt 

我怀疑类路径有些问题但是从那以后我真的不明白Java是否有任何简单的方法来检查一切是否正确？

I suspect some problems with classpath but since I don't really understand Java is there any simple way of checking if everything is correct?

感谢您的帮助

推荐答案

您可以使用 -cp 参数提供类路径：

You can provide the class path with the -cp param:

java -cp /path/to/weka/weka.jar weka.classifiers.trees.J48 ...
# on Windows, this is probably something like 
java -cp C:\path\to\weka\weka.jar weka.classifiers.trees.J48 ...

这篇关于在调用Weka时无法找到或加载主类的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！