error on insert in mysql table

[paolo balz]

Hi all,
when I try to insert a row in mysql table I've got this error:

SQLException: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '?,?,?,?,?,?,?,?,?,?,?,?,?,?)' at line 1
SQLState: 42000
VendorError: 1064

Can someone help me?

this is thecode:

String sql2 = "INSERT INTO quote "
+ "(codice, giorno, tipo, data_ult, str, scad, pr, de, le, va, va_perc, vo, op, voli) VALUES"
+ "(?,?,?,?,?,?,?,?,?,?,?,?,?,?)";

preparedStatement = (PreparedStatement) conn.prepareStatement(sql2);

preparedStatement.setString(1, linea[0].toString());
preparedStatement.setString(2, linea[1].toString());
preparedStatement.setString(3, linea[2].toString());
preparedStatement.setString(4, linea[3].toString());
preparedStatement.setFloat(5, Float.parseFloat(linea[4]));
preparedStatement.setString(6, linea[5].toString());
preparedStatement.setFloat(7, Float.parseFloat(linea[6]));
preparedStatement.setFloat(8, Float.parseFloat(linea[7]));
preparedStatement.setFloat(9, Float.parseFloat(linea[8]));
preparedStatement.setFloat(10, Float.parseFloat(linea[9]));
preparedStatement.setString(11, linea[10].toString());
preparedStatement.setInt(12, Integer.parseInt(linea[11]));
preparedStatement.setInt(13, Integer.parseInt(linea[12]));
preparedStatement.setFloat(14, Float.parseFloat(linea[13]));

preparedStatement.executeUpdate(sql2);
if(preparedStatement!=null){
preparedStatement.close();
System.out.println("Success.");
}

Thanks