Java Utililty Methods XML First Child Element

List of utility methods to do XML First Child Element

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Description

The list of methods to do XML First Child Element are organized into topic(s).

Method

StringextractFirstChildValue(final Node node)
Extract text value for nodes like text 
final Node valueSubNode = node.getFirstChild();
if (valueSubNode == null) {
    return null;
return valueSubNode.getNodeValue();
ElementfirstByClass(NodeList childList, String className)
first By Class 
for (int i = 0; i < childList.getLength(); i++) {
    Element childElement = (Element) childList.item(i);
    if (className.equals(childElement.getAttribute("class"))) {
        return childElement;
return null;
ElementfirstChild(Element element, String name)
Returns the first child element for the given name 
NodeList nodes = element.getChildNodes();
if (nodes != null) {
    for (int i = 0, size = nodes.getLength(); i < size; i++) {
        Node item = nodes.item(i);
        if (item instanceof Element) {
            Element childElement = (Element) item;
            if (name.equals(childElement.getTagName())) {
                return childElement;
...
ElementfirstChild(Element element, String name)
Extracts from the given Element the first child having the given name. 
NodeList nodeList = element.getChildNodes();
for (int i = 0; i < nodeList.getLength(); i++) {
    Node current = nodeList.item(i);
    if (current.getNodeType() == Node.ELEMENT_NODE && current.getNodeName().equals(name)) {
        return (org.w3c.dom.Element) current;
return null;
...
NodefirstChildByTagName(Node root, String tagName)
first Child By Tag Name 
if (root != null && root.getChildNodes().getLength() > 0) {
    int childCount = root.getChildNodes().getLength();
    for (int i = 0; i < childCount; i++) {
        if (tagName.equals(root.getChildNodes().item(i).getNodeName())) {
            return root.getChildNodes().item(i);
return null;
ElementfirstChildElement(Element element, String childElementName)
Return the first child Element with the given name; if name is null returns the first element. 
if (element == null)
    return null;
Node node = element.getFirstChild();
if (node != null) {
    do {
        if (node.getNodeType() == Node.ELEMENT_NODE
                && (childElementName == null || childElementName.equals(node.getNodeName()))) {
            Element childElement = (Element) node;
...
ElementfirstChildElement(Element parent)
Get the first child org.w3c.dom.Element Element of an org.w3c.dom.Element Element . 
Node n = parent.getFirstChild();
if (n == null || n instanceof Element) {
    return (Element) n;
} else {
    return nextSiblingElement(n);
ElementfirstChildElement(Node node)
Returns true if this node has at least one child element 
if (node != null) {
    NodeList nodes = node.getChildNodes();
    for (int i = 0, size = nodes.getLength(); i < size; i++) {
        Node item = nodes.item(i);
        if (item instanceof Element) {
            return (Element) item;
return null;
ElementfirstChildElement(Node node)
first Child Element 
for (Node tempNode = node.getFirstChild(); tempNode != null; tempNode = tempNode.getNextSibling()) {
    if (tempNode.getNodeType() == Node.ELEMENT_NODE) {
        return (Element) tempNode;
return null;
org.w3c.dom.NodefirstChildNodeWithName(org.w3c.dom.Node node, String name)
first Child Node With Name 
org.w3c.dom.Node foundNode = null;
org.w3c.dom.NodeList childNodes = node.getChildNodes();
final int n = childNodes.getLength();
for (int i = 0; i < n; i++) {
    org.w3c.dom.Node childNode = childNodes.item(i);
    if (childNode.getNodeName().equals(name)) {
        foundNode = childNode;
        break;
...