How to know size of file in a directory

Hi,

I have to directory
/usr/inbound
-------------
10900.txt
10889.txt
109290202.txt

I need to create inbound directory
and i need to know size of these files one by one
if file size is zero i need to print message like "empty file"

Please help me how to solve this

thanks
krish.

This has been answered here ... How to find size of a file