This week's book giveaways are in the iOS and Features new in Java 8 forums. We're giving away four copies each of Barcodes with iOS: Bringing together the digital and physical worlds and Core Java for the Impatient and have the authors on-line! See this thread and this one for details.
The problem is that, knowingly or unknowingly, you've set your CLASSPATH environment variable (which Java uses to find .class files), and the value you've set it to does not include "." (dot, meaning the current directory). The best thing to do is to not have CLASSPATH set at all, but if you must set it, then include "." as an entry.
I read Sun's tutorial on running the first cup of Java and they didn't say anything about setting a CLASSPATH. But, I have a CLASSPATH variable already set by another application. Therefore, I added the . (dot) and everything works fine.
And I can't notice how quick the answers are on Javaranch.