public void parse() throws Exception {
        builder = factory.newDocumentBuilder();
        Document doc = builder.parse(new File("player-name.xml"));
        doc.getDocumentElement().normalize();
        NodeList detailList = doc.getElementsByTagName("player");
        for(int i = 0; i < detailList.getLength(); i++) {
            Element detailElement = (Element) detailList.item(i);
            user = detailElement.getAttribute("user");
            pass = detailElement.getAttribute("pass");
            NodeList posList = doc.getElementsByTagName("position");
            Element posElement = (Element) posList.item(0);
            x = Integer.parseInt(posElement.getAttribute("x"));
            y = Integer.parseInt(posElement.getAttribute("y"));
            z = Integer.parseInt(posElement.getAttribute("z"));
        }
    }