[news.eclipse.newcomer] Re: Newbie help with SWT

[JACK YAO <yaofahua@xxxxxxxxxxxxxxx>]

Dennis Williams wrote:
> I'm new to both Java and the Eclipse IDE, and I'm trying to create a 
> simple SWT application using the Visual Editor. Everything is fine when 
> running the app from within the editor, but when I export it to an 
> executable jar file, double-clicking the jar from explorer give me the 
> error "Could not find the main class. Program will exit."
>
> I've also tried running from the command line with the following command:
>
> java -classpath C:\swt\swt.jar;C:\SWTTest\SWTTest.jar 
> -Djava.library.path=C:\SWT SWTTest
>
> where SWTTest is the name of the main class. I get the exception 
> "java.lang.NoClassDefFoundError: SWTTest".
>
> The manifest file inside the jar file is as follows:
> Manifest-Version: 1.0
> Main-Class: my.pkg.SWTtest
>
> Everything looks right, but it just won't run... I'm about at my wit's 
> end, so any help would be appreciated.
>
> btw, I'm running Eclipse 3.1.1 on a WinXP machine, and this project is 
> basically just a shell.. nothing fancy.

try
java -classpath C:\swt\swt.jar;C:\SWTTest\SWTTest.jar -Djava.library.path=C:\SWT 
my.pkg.SWTTest
or in the manifest file:

  Manifest-Version: 1.0
  Main-Class: my.pkg.SWTtest
                     ~~~~~~~ Is it the right name or SWTTest?


--
JACK YAO, Beijing, China