public SQLHelper() {
        try {

            InputStream in = this.getClass().getResourceAsStream("/sols/Util/jdbc.properties");
            Properties pp = new Properties();
            pp.load(in);
            url = pp.getProperty("jdbc.url");
            user = pp.getProperty("jdbc.username");
            password = pp.getProperty("jdbc.password");
            driver = pp.getProperty("jdbc.driver");

        } catch (IOException ex) {
            Logger.getLogger(SQLHelper.class.getName()).log(Level.SEVERE, null, ex);
        }
    }