public static void main(String[] args)
    {
        int index;
        String handle, host;
        InetAddress address = null;
        WhoisClient whois;

        if (args.length != 1)
        {
            System.err.println("usage: fwhois handle[@<server>]");
            System.exit(1);
        }

        index = args[0].lastIndexOf("@");

        whois = new WhoisClient();
        // We want to timeout if a response takes longer than 60 seconds
        whois.setDefaultTimeout(60000);

        if (index == -1)
        {
            handle = args[0];
            host = WhoisClient.DEFAULT_HOST;
        }
        else
        {
            handle = args[0].substring(0, index);
            host = args[0].substring(index + 1);
        }

        try
        {
            address = InetAddress.getByName(host);
            System.out.println("[" + address.getHostName() + "]");
        }
        catch (UnknownHostException e)
        {
            System.err.println("Error unknown host: " + e.getMessage());
            System.exit(1);
        }

        try
        {
            whois.connect(address);
            System.out.print(whois.query(handle));
            whois.disconnect();
        }
        catch (IOException e)
        {
            System.err.println("Error I/O exception: " + e.getMessage());
            System.exit(1);
        }
    }