Look here USB Detection (Threads forum at JavaRanch) . You may have to tweak it some and add the public static void main part in. It should give you something to go on.
Type: Posts; User: reverse
Re: Java program to count External devices connected with the system. Eg. Pen drive
Look here USB Detection (Threads forum at JavaRanch) . You may have to tweak it some and add the public static void main part in. It should give you something to go on.