Java to check USB HD

Have anyone ever used java to check if a USB HD is connected?
Where can I get reference or lib?
Is it possible to check if the USB HD is connected as D: or E: or F:?
Thanks in advance for any information!!
Dino

Thanks for your reply very much.
Currently, I got Java USB API from http://www-124.ibm.com/developerworks/projects/javaxusb
But still need some efforts to make it works.
I don't know if the API can check which drive USB HD exists.
Welcome to exchange experiences with the USB API.
Dino

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