Hello World

[Tim Bachta]

I ran the hello world program. It was able to compile but when I ran it I received the following message:"Exception in thread "main" java.lang.NoClassDefFoundError: Hello World " did I do something wrong?

[Marilyn de Queiroz]

Your class name is HelloWorld (all one word), right?
You compiled "javac HelloWorld.java" ?
You then typed "java HelloWorld" ?
From the error message, it appears that you tried to split the class name into two words (i.e. java Hello World).

[Tim Bachta]

actually it is comming out as HelloWorld all one word??
I saved the file as HelloWorld.java the class anme is HelloWorld what else could be wrong?

[Marilyn de Queiroz]

What subdirectory are you in when you compile? What subdirectory is your HelloWorld.java file in? What is your path set to? What is your classpath set to?

[Tim Bachta]

They are all in the Java folder which is located in the root of C: Drive and I compile and reun in that directory

[Marilyn de Queiroz]

What is your CLASSPATH set to?

[Tim Bachta]

This is the settings that I have
PATH=C:\windows;c:\windows\command;c:\jdk1.2\bin;C:\jdk1.2\jre\bin
CLASSPATH=C:\jdk1.2\lib;.;C:\java
I am still getting an error

[Daniel Olson]

This may not be your problem, but I have gotten that error when I forget and type
java HelloWorld.java
instead of
java HelloWorld

[paul wheaton]

What operating system are you using?