writing an object

[richman92]

Hi.

I have got a problem with writing an object. I would like to save a hashmap with highscores on a server, but it does not work. It throws java.net.UnknownServiceException. Any better solutions are welcome.

public class ListOfPlayers implements Serializable {

public void save() {

try {

URL file = new URL("file:game.bin");
URLConnection connection = file.openConnection();
connection.setDoOutput(true);
ObjectOutputStream vystup = new
ObjectOutputStream(connection.getOutputStream());
vystup.writeObject(players); // players = HashMap
vystup.close();

} catch(Exception e) {

System.out.println(e);

}
}
}