I don't get the warning anymore. I think there was an issue with my project space and the IDE I was using, BlueJ. I started a new project in a new workspace, and the issues went away . here is a copy of the code in it's current form, please don't judge me for bad programming, I'm just trying to make it work. On the other hand, critique is welcome...
Can anyone suggest a more reliable IDE that isn't as complex as eclipse or netbeans? I would like to concentrate on learning Java, and big IDEs only complicate the issue.