I'm trying to get the user to say if s/he wants to play "yahtzee" again or not, and the response needs to be validated as well (i.e. "y" or "n" are not acceptable, only "yes" or "no"). I feel like I'm doing it right, and I've done similar things before, but I absolutely can't get it to work. Any help?? That part is in the main method all the way at the bottom.