get node inside node in of xml using java

1    for (int temp = 0; temp < NodeOzet.getLength(); temp++){
2        Node nOzet = NodeOzet.item(temp);
3        NodeList carList = eElement.getElementsByTagName("cars")
4        String cars = "";
5        for(int temp2 = 0; temp2 < carList.getLength(); temp2++){
6             cars += ((Element)carList.item(temp2)).getAttribute("carname") + "\t";
7        }
8     }