🚀 go-pugleaf

Hello,
Now I run the JAVA application,always show, on command line,
'Exception in thread "main" java.lang.NoClassDefFoundError:XXXX'.
XXXX is the class name.
Take an example.
First I build a Hello.java file.And its code is belowing.
-------------------------------------------------------------
import java.io.*;
public class Hello{
    public static void main(String[] args){
        System.out.println("Hello.");
    }
}
-------------------------------------------------------------
Second, I type 'javac Hello.java' on command line.Compile OK.
Third, I type 'java Hello'.Show that error.
The Applets run well.
I first setup JDK1.2.1.Then setup VJ++.
I am afraid the Interpreter is destroyed or the Environment sets wrong.
The CLASSPATH is 'c:\windows\java\classes'.
Could you do me a fever?
Thanks.

-----
ICQ:26526438