...But Java has nice physics too...
Whoever told you this is lieing.
Physics would have to be programmed and it is a loving bitch let me tell you now.
I had to scrap physics from my game I am making for class because it was taking too much out of my designing time and such.
Next game we make will revolve around physics though. (And if one knew the game I was talking about, they would find the punnyness of that statement rather hilarious)