public class Console {

    public static native int getch ();

    private static void help () {

        String p = System.getProperty ("java.library.path");

        String[] msg = p.split (":");

        System.err.printf ("Console Error:\n");

        for (int i = 0; i < msg.length; i++)

            System.err.printf ("\t%s\n", msg[i]);

        System.exit (-1);

    };

    static {

        try {

            System.loadLibrary ("Console");

        } catch (UnsatisfiedLinkError ule) {

            System.err.println (ule.getLocalizedMessage ());

            help ();

        }

    };

}