Answer 1

A game with java alone wouldn't be too impressive due to a lack of graphics. If you want graphics with your java game I would recommend looking up some tutorials that go over java based graphics libraries. If you are unaware on what a library is in the world of programming, it is an expansion to the vanilla language to offer extra flexability and capabilities. On the other hand, game development requires a strong sense of events and a well thought out plan. I would suggest working small first with small miniscule projects to practice your programming. I would honestly start by making a game without graphics that operates like a tell tale game or maybe something along the lines of primitive board games for practice. Overall, it is possible but takes great detirmination in the end. Once again, practice makes perfect :D . If you need more details, I found youtube to be a good resource.