Having Problems Running my Java Progs

Question

Hey guys,
I keep getting the following error message when I try to run any of my java programs.
Exception in thread "main"
java.lang.NoClassDefFoundError: HelloApp
this is the app that im trying to run;
public class HelloApp
     public static void main (String[] args)
          System.out.println("Hello, World");
}I cant see anything wrong with this piece of code. Ive definately saved the code as HelloApp.java. I've tried several different programs all with the same result. Does anyone have any ideas on why this is happening?
Thank You
Jaz

Answer 1

OK, classpath is different from path, it's specifically used by java to locate .class files.
Apparently some Windoze versions do not automatically include the local directory in the classpath - or may not have a classpath variable set until you do it manually.
So, the easiest way to see if this is your problem is to set the classpath in the command line like so:
java -cp C:\WhereIHidMyFiles HelloApp
(obviously, substitute the correct directory name above)