How do you get a hard stomach?
Jogging is one of the best exercises that will let you make your stomach hard. Then do some exercises that will burn your stomach fat. Do cardiovascular exercises like cycling and rowing for 20 to 30 minutes at least three times a week. You can read more at http://www.livestrong.com/article/505747-how-to-get-a-hard-stomach-fast/.
cardiovascular exercises are the best way to go! you cant beat running and jogging but if you aren't a fan of that type of thing, you can always jump rope or ride a bikevv
crunches, crunches, crunches!!!!