Added one possible simple solution to the Java/Loops tutorial.

And I also fixed a typo.  "Three"  (on line 8).

Ron,

I'm very new to github and also java - that's why I'm doing the course !  So I hope I have forked a sent a pull request correctly.

Hope this is the right place to put a possible solution.  (not 100% sure from the instructions).

cheers,

Graeme.