my dog learned polymorphism
The moose likes Beginning Java and the fly likes problems running code Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Introducing JavaFX 8 Programming this week in the JavaFX forum!
JavaRanch » Java Forums » Java » Beginning Java
Bookmark "problems running code " Watch "problems running code " New topic

problems running code


Joined: Sep 28, 2005
Posts: 1
i have just started to read the head first java i use a mac os x,
and since the sdk files are supposed to be included with
mac os x, i thought i should discover how to get my java codes
running, and so i haveused the following example in the book

public class abc {

private static void main (String[] args) {
System.out.print("i rule!");
System.out.print("the world!");


thank you all
[ September 28, 2005: Message edited by: AKIN Ojo ]
Phil Dixon

Joined: Aug 13, 2005
Posts: 11

Could you post your code as well.
Norm Radder
Ranch Hand

Joined: Aug 10, 2005
Posts: 691
Here's one way to get that message. The file asdf does not exist in the current directory
>java asdf
Exception in thread "main" java.lang.NoClassDefFoundError: asdf

Check where the class file is.

When having runtime errors, please post all the console including what you entered.
Jesper de Jong
Java Cowboy
Saloon Keeper

Joined: Aug 16, 2005
Posts: 14991

> private static void main (String[] args) { ...

The main method should be public, not private.

Java Beginners FAQ - JavaRanch SCJP FAQ - The Java Tutorial - Java SE 8 API documentation
I agree. Here's the link:
subject: problems running code
jQuery in Action, 3rd edition