I working  on a new project  there 3 things  i'm having problems  with:

1). I need to get the computers a localhosts ip address.

2). I need to get the computers harddrive serial  no.
I know that this isn't possible in java  does anyone know how i
can call  out to a c++ program  to get it for me. (jni?)

3). I need to read  in all the files  in a given folder.