Re: Exception in thread "main" java.lang.NoClassDefFoundError: sampl
- From: Knute Johnson <nospam@xxxxxxxxxxxxxxxxxxxxxxx>
- Date: Thu, 19 Apr 2007 21:37:43 -0700
xcrazy wrote:
Hi, I know this is a common error, but this occurs only in some of my
programs.
I run java on windows XP SP2, jdk1.5
My sampl.java file is like this:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class swing_app {
public static void main(String[] args) {
JDesktopPane desktop = new JDesktopPane();
desktop.add(desktop,BorderLayout.CENTER);
JInternalFrame internalFrame = new
JInternalFrame("Internal
Frame",true,true,true,true);
internalFrame.setBounds(50,50,200,100);
desktop.add(internalFrame,new Integer(1));
}
}
It compiles giving me a "sampl.class" file but when i type thisjava sampl
I get this error: - Exception in thread "main"
java.lang.NoClassDefFoundError: sampl
I don't get this error in a simple "Hello world" program.....
This is how i've set my paths:
Path=c:\j2sdkee1.3.1\bin;%SystemRoot%\system32;%SystemRoot%;
%SystemRoot
%\system32\WBEM;%SYSTEMROOT%\system32\WBEMC:
\PROGRA~1\COMMON~1\AUTODE~1;.;C:\Java\jdk1.5.0_09\bin;c:\Java
\jdk1.5.0_09\lib;
CLASSPATH= .;C:\Java\jdk1.5.0_09\lib;C:\Java\jdk1.5.0_09\bin;C:
\j2sdkee1.3.1\bin;
Please help!!
I don't know how you get it to compile if it is in a file named sampl.java? The file name and the class name must match. Anyway your program isn't going to do anything without a window or frame to hold your components. You should probably get rid of the CLASSPATH environment variable too, it is almost never needed.
--
Knute Johnson
email s/nospam/knute/
.
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