public class XMLClient {
public static void main(String[] args) throws IOException, ClassNotFoundException, UnknownHostException {

        if (args.length != 2) {
            System.err.println(
                "Usage: java EchoClient <host name> <port number>");
            System.exit(1);
        }

        String hostName = args[0];
        int portNumber = Integer.parseInt(args[1]);
        Socket kkSocket = new Socket(hostName, portNumber);
        ObjectInputStream fromServer = new ObjectInputStream(kkSocket.getInputStream());
        XStream in_xml = new XStream();
        String xml_graph = (String)fromServer.readObject();

        /*
        FileWriter plik = null;
        plik = new FileWriter("graf.txt");
        PrintWriter zapis = new PrintWriter(plik);
        zapis.println(xml_graph);
        zapis.close();
        */
        //System.out.println(xml_graph);
        int[][] tab = (int[][])in_xml.fromXML(xml_graph);

    //dalej kod do algorytmów
}