Exception in thread main{resolved}

This is the error message I get after I compile and then try to run a simple hello world program.
Theres nothing wrong with the syntax.
Heres the error message I get:
Exception in thread "main" java.lang.NoClassDefFoundError: hello

The way I can get this to work is type in the command prompt:
Set CLASSPATH=
and then im able to run the program and it works.(only thing wrong with this is it's temporary)


Here is some info if you need it:

These are my Environment Variables:

Classpath
C:\Sun\AppServer\jdk\lib\tools.jar\ext

Path
C:\Sun\AppServer\jdk\bin


java version 1.4.2_04
java 2 runtime environment, standard edition

Please help me. I have looked everywhere for answers and sources say I have'nt done anything wrong but obviously something is.

It means it can't find the class you're specifying on the command line.

You can amend that by emptying the classpath (as you did, this causes the JVM to look in the current directory) or by adjusting it to include ".", the current directory.

java -cp "%CLASSPATH%;." hello

Thanks for the help, but is there not a way to permanantly set the Classpath?

Somewhere in the control panel...

I just usualy run using C:\> java -classpath C:\path; app unless i set my class path in the system configuration editor.