Welcome to the forums. If you have a problem, please state it clearly and specifically. Just giving us code does not tell us much. Also, please put any code between [code][/code]-tags,for it to be more readable.
From looking at your code, I can tell this line will be causing you problems:
I suspect you are wanting to print all the multiples of 5 up to 100. The best way is to use the modulus operator, which returns you the remainder of the division of its left operand by its right operand:
7 % 5 = 2 (7/5 = 1, with 2 remainder)
10 % 5 = 0 (10/5 = 2, with no remainder)