How to get child elements of element in xml?

Question

public class Test {
     public static void main(String[] args) {
          Document doc = null;
          System.out.println("!!!");
          try {
               // TODO if path is 'c:' then make it 'c:/'
               doc=DocumentBuilderFactory.newInstance().newDocumentBuilder().parse("test.xml");
          } catch (Exception e) {
               System.out.println("exception");
          Element root = doc.getDocumentElement();
          NodeList dsList = root.getElementsByTagName("GenericDataSource");
          Element e = (Element)dsList.item(0);
         NodeList nl = e.getChildNodes();
         System.out.println(nl.getLength());
         Node n  = nl.item(0);
         Element ee = (Element)n;
}i want to get child elements. but its throwing exception on typecasting. can u tell me why?

Answer 1

thanks for the info.
i got 2 solutions
SOLUTION 1:
public class Test {
     public static void main(String[] args) throws Exception {
          Document doc = null;
          System.out.println("!!!");
          try {
               // TODO if path is 'c:' then make it 'c:/'
               doc=DocumentBuilderFactory.newInstance().newDocumentBuilder().parse("test.xml");
          } catch (Exception e) {
               System.out.println("exception");
          Element root = doc.getDocumentElement();
          NodeList dsList = root.getElementsByTagName("GenericDataSource");
          Element e = (Element)dsList.item(0);
         NodeList nl = e.getChildNodes();
         int count = 0;
         System.out.println(nl.getLength());
         for(int i=0;i<nl.getLength();i++){
                  Node n  = nl.item(i);
                 //System.out.println(n.getClass().getName()); 
                 //System.out.println((Element)n);
                 if(n instanceof Element){ // this checks for node type
                      count++;
                      System.out.println("Element "+(Element)n);
SOLUTION 2: :
XPath xpath  = XPathFactory.newInstance().newXPath();
         InputSource inputSource = new InputSource("test.xml");
         NodeList nodes = (NodeList) xpath.evaluate("//GenericDataSource/*", inputSource, XPathConstants.NODESET);
         System.out.println(nodes.getLength());
         System.out.println((Element)nodes.item(9));