{
//            String userName = "root";
//            String password = "123456";
//            String u;
//            u = "vasya";
//            String ps = "qwerty";
//            String url = "jdbc:mysql://localhost/db_univer";
//            Class.forName ("com.mysql.jdbc.Driver").newInstance ();
//            conn = DriverManager.getConnection (url, userName, password);
//            System.out.println ("Database connection established");
//
//            Statement s = conn.createStatement ();
//            s.executeQuery ("SELECT passwd FROM t_user WHERE nick = '" + u + "'");
//            ResultSet rs = s.getResultSet ();
//            int count = 0;
//            while (rs.next ())
//            {
//                String ps_true = rs.getString ("passwd");
//                System.out.println (
//                        "True password = " + ps_true +
//                        "  Input password = " + ps);
//                ++count;
//            }
//            rs.close ();
//            s.close ();