Weird: NoClassDefFoundError: Hello

[Mark Lau]

This is really really weird. I have no clue
what has happened to my system.
Look the following. Isn't it funny?
You see, the little program Hello.java has
no problem at all. And this is strangely
proved if I run this program by clicking
on the execute button from JCreator Pro.
It runs pretty well that way.
But if I run it from the DOS Window. I have
the weird exception
java.lang.NoClassDefFoundError: Hello
What might be the problem? If the JVM is
damaged, then it should not have run from
JCreator Pro, right?
The problem persists regardless of which
java.exe I run, be it the one under JAVA_HOME\bin
or the one under C:\WINNT\system32.
Any explanation please? Thank you!
*** Start of the funny java ****
C:\Java>type Hello.java
public class Hello
{ public static void main(String [] args)
{ System.out.println("Hello, world!");
}
}
C:\Java>javac Hello.java
C:\Java>java Hello
Exception in thread "main" java.lang.NoClassDefFoundError: Hello
C:\Java>java -version
java version "1.4.1_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_01-b01)
Java HotSpot(TM) Client VM (build 1.4.1_01-b01, mixed mode)
C:\Java>
**** End of the funny java ****

[Maulin Vasavada]

try running,
java -cp .;%CLASSPATH% Hello
and see if that works...
regards
maulin.

[Cindy Glass]

You apparently have your classpath set up just fine for your IDE (JCreator) but do NOT have it set up outside the IDE.
You can invoke the program naming the classpath to use (as shown above) or just set your classpath on your machine.