title: How to make application file permission with Java client server
body: <p>i would make an application client server with java to change or modify the file permission in a folder . 
  i had looking for about these information, but i'm still confused with it,i can't find the answer.
  what the first thing i do to make this application?</p>
  
  <p>thanks for your advice.</p>
  
  <p>nb : sorry for bad english.</p>