this sounds almost exactly like a question on an assignment

A hint :

Don't post questions to assignments on forums

We aren't cheaters here . . . We are help

If you want to understand why you should or if it is part of code that isn't compiling

or if you thought you did it right but the compiler won't compile because of it

JUST POST THE CODE AND ASK

~ Geo

 ~ You are unique, just like everyone else