Can not connect to host where the data base is hosted

Question

sql.free.fr is where the data base is hosted
String host = "jdbc:mysql://sql.free.fr/
her's the code
public f()
String pilote = "org.gjt.mm.mysql.Driver";
String host = "jdbc:mysql://sql.free.fr/";
String login = "login";
String pw = "password";
setTitle("Programmation avanc�e Java II (NicoWatt)");
setSize(x,y);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
show();
TM = new TMFromMysql(pilote,host,login,pw,"select * from TCar");
JTable T = new JTable(TM);
JScrollPane JSP = new JScrollPane(T);
JSP.setPreferredSize(new Dimension(x,y));
getContentPane().add(JSP,BorderLayout.CENTER);
pack();
}

Answer 1

Basic network debugging:
1. Try to ping the server; at the command line, type "ping sql.free.fr" and see what happens.
If that fails then you have a network connectivity problem. Talk to the person who controls your network (the point where you connect to the Internet) and discuss it.
2. Try to connect to the server at the same port that MySQL is using (normally 3306 but confirm that with the people running it); at the command line, type "telnet sql.free.fr 3306" and see if you get a connection.
If that fails, then again you have a problem. Again discuss this with your network person. There are several reasons why these may fail (proxy servers, firewalls, and so on) and you will get better answers from people who know about the network then from random strangers on the Internet.