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From: Gene Wirchenko <genew@ocis.net>
Newsgroups: comp.lang.java.programmer
Subject: CLI Java Glitch
Date: Mon, 20 Jun 2011 14:24:53 -0700
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Dear Java'ers:

     Given

class HelloWorld
   {
   public static void main(String[] args)
      {
      System.out.println("Hello, world!");
      }
   }

is there any way around the following?

C:\cbs2dev\test>java helloworld
Exception in thread "main" java.lang.NoClassDefFoundError: helloworld
(wrong nam
e: HelloWorld)
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClassCond(Unknown Source)
        at java.lang.ClassLoader.defineClass(Unknown Source)
        at java.security.SecureClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.access$000(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: helloworld.  Program will exit.

C:\cbs2dev\test>java HelloWorld
Hello, world!

     Most commands in a Windows system are case-insensitive so any are
liable to be typed that way.

     I find it weird that it does apparently know the correct name and
includes it in the error message.

Sincerely,

Gene Wirchenko