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First, please read the Announcement topic to learn how to post code in code or highlight tags and other useful info for newcomers.

I don't know what cloud programming is. Please define what you...

The simple program has a main() method? When we suggest remedies, you need to address them directly.

If you don't know, say so. If you do know and you've determined that the simple program does...

I suspect you either need a main() method, or if the source code has one, then the source code file should be named the same as the top-level public class name with the .java extension. You might...