Android how to parse the XML

XML Content

/*
<car>
<vacancyinfo capacity="327" vacancy="145"/>
</car>*/

parse Program

xml = connection(SharedUtils.CAR_VACANCY_URL, null);

InputStream inputStream = new    ByteArrayInputStream(xml.getBytes());

DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();

DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();

Document doc = dBuilder.parse(inputStream);

doc.getDocumentElement().normalize();

NodeList vacancyinfoNodeLis = doc.getElementsByTagName("vacancyinfo");

Element vacancyinfo = (Element) vacancyinfoNodeLis.item(0);

String capacity=vacancyinfo.getAttribute("capacity");

String vacancy=vacancyinfo.getAttribute("vacancy");