public UserStorageAccess() {
        try {
            File fXmlFile = new File(fileName);
            DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
            doc = dBuilder.parse(fXmlFile);
            doc.getDocumentElement().normalize();
        } catch (Exception ex) {
            Logger.getLogger(StockStorage.class.getName()).log(Level.SEVERE, null, ex);
        }

    }