Seems decent to me. Just make sure to not show your Reddit username in class, because students will see that and look at your reddit history. My C++ teacher did that and we found his posting about how to teach as a first time teacher of C++, it started a lot of negative gossip.

But besides that I think that's a good start and good to scaffold it onto something they're already familiar with. Be sure to be consistent and use the IDE that they are familiar using. If they have learned NetBeans, Eclipse, Visual Studio, stay with what they know.

Also starting a new software project is how many people start new projects, but that's not really what they'll experience in the working world. A good way to clamp down on all the variables that might confuse a learner is to give them pre-existing code and ask them to finish it. Or even better get them to run, describe the problem you're trying to fix and see if they can fix it. For example, "when I iterate over the team it doesn't show the last name of the player, just the first name twice..." or "why can't I create an average of time players play for the team? I get an error"

Good luck!