• Post Reply Bookmark Topic Watch Topic
  • New Topic

NoClassDefFoundError  RSS feed

 
Ranch Hand
Posts: 664
Chrome Eclipse IDE
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Any idea why the code here is returning an error, when trying to compile it from the command line?

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
...

>javac GridBagLayout.java
javac: file not found: GridBagLayout.java
Usage: javac <options> <source files>
use -help for a list of possible options

>javac GridBagLayoutDemo.java

>java GridBagLayoutDemo.java
Exception in thread "main" java.lang.NoClassDefFoundError: GridBagLayoutDemo/java
Caused by: java.lang.ClassNotFoundException: GridBagLayoutDemo.java
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)
Could not find the main class: GridBagLayoutDemo.java. Program will exit.

Basically, I was trying to understand whether changing the GridBagConstraints would have a visual impact on the display:




 
Bartender
Posts: 612
7
Mac OS X Python
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Well the first thing would be that your java command is referencing your source file.
 
Ranch Hand
Posts: 96
Eclipse IDE Java Oracle
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator


The fact that the class is part a of a package 'layout' translates into a folder structure that you don't seem to follow.
...
Just noticed Steve is responding in the same way. That probably means I'm not awfully wrong in my answer

Cheers
Wim
 
Consider Paul's rocket mass heater.
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!