Random Numbers In A Box

Hi! :) I made a program that generates random numbers and a grid and draws the numbers in the grid. I would like someone to review it and tell me if it makes sense and if there is anything I can do to improve it. The key is: CA5VS3RJ I think I got most the bugs but if you can find one I will try and fix it. Thank you :) [ Also if this is in the wrong place I am sorry :( ] EDIT: aggh forgot the key :V

Edit: can't read Programming Discussion would have worked but you're fine.

K then :)