public static void saveToXmlFile(File filename) {
        try {
            Document document = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();

            Element root = document.createElement("data");
            document.appendChild(root);

            Element entry = document.createElement("entry");
            entry.setAttribute("name", "Foo Fighters: Back and Forth");
            entry.setAttribute("year", "2011");
            entry.setAttribute("genre", "Documentary");
            root.appendChild(entry);
            
            entry = document.createElement("entry");
            entry.setAttribute("name", "Bar girls");
            entry.setAttribute("year", "1994");
            entry.setAttribute("genre", "Drama");
            root.appendChild(entry);
            
            entry = document.createElement("entry");
            entry.setAttribute("name", "Cane-Toad: What Happened to Baz?");
            entry.setAttribute("year", "2002");
            entry.setAttribute("genre", "Animation/Short");
            root.appendChild(entry);

            printDocument(document, new FileOutputStream(filename));

        } catch (ParserConfigurationException | TransformerException | IOException e) {
            e.printStackTrace();
        }
    }