Newbie question

Hi.
ummm....I wondering
if I #include many many file in C++,
or import many many package in JAVA,
what will happen?

Will my file become bigger bigger?
even if got function never use?
Or will compiler auto remove all the never use function?

Thank u BBS!

>>16
I ain't a code monkey, you toilet-scrubbing mental midget. Wasting my time on such tasks is below me. I have a PhD in math and make 300k.