public static boolean validateUser( String username, String pass)
    {
        boolean found = false;
        Connection c = DBHelperClass.getConnection();
        if(c!=null)
        {
            try
            {
                String template = "SELECT * from users where username=? and password=?";
                PreparedStatement inserter = c.prepareStatement(template);
                inserter.setString(1, username);
                inserter.setString(2, pass);
                ResultSet resultSet = inserter.executeQuery();

                if (resultSet != null)
                {
                    found = true;
                }
            }
            catch (SQLException ex)
            {
                Logger.getLogger(User.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
        return found;
    }