Location of java class libraries on Sun

**phudgens** · 02-04-2009, 08:03 PM

Hello everyone. I'm a brand new java programmer so be gentle with me! I'm working my way through "Sam's Teach Yourself Programming with Java" (up to chapter 15) and feel like so far everything is understandable. I've been running my programs on my PC and thought I'd try one on my Sun machine for fun, since that's where I ultimately want to run anyway. My program compiled w/o problem, but gave the following error when running:
Exception in thread "main" java.lang.NoClassDefFoundError

My research of this error seems to indicate that Solaris can't find the java.awt and javax.swing libraries. I can't find them and no one in the IT group seems to know either.

Does anyone know where these libraries are normally installed on a Sun machine so that I can specify that location with the -classpath option when I run my programs?

Thanks,

Paul Hudgens
Denver

**emceenugget** · 02-04-2009, 08:45 PM

don't think this error is related to swing or awt. your problem might be with just the naming of your class and java file. what exactly are they?

**angryboy** · 02-04-2009, 09:40 PM

have you tested out a simple hello world program on the sun machine?

**Eranga** · 02-05-2009, 05:45 AM

As emceenugget says, this is not related to Swing/AWT libraries.

Do you try the same class on both PCs? Try a simple class on Sun machine, like hello world. Still you get the same issue, check the class path setting up correctly. It can be the issue here.