Re: Problem with commandline compile

I have been using Windows XP & the latest version of NetBeans to compile
simple Java programs as I am learning the languages. I just tried to do a
command line compile & execute and I cannot get it to work so I wend back
to the "Hello World" program with the same result. Here is the program,
the commands I tried, and the error result:

The program file contains:
    class HelloWorldApp {
        public static void main(String[] args) {
         System.out.println("Hello World!");
        }
    }

The Commands:
   To Compile: javac k:\HelloWorldApp.java (This worked)
   To Execute: java k:\HelloWorldApp (This failed)
   The Result:
Exception in thread "main" java.lang.NoClassDefFoundError: k:\HelloWorldApp
Caused by: java.lang.ClassNotFoundException: k:\HelloWorldApp
        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)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)

I also tried java K:\NonExistantFile which, of course, failed but with
different errors than the above so it must be finding the .class file but
doesn't like something in it.

What am I doing wrong? Thanks!