xml - iterate through a NodeList using for-each in Java?

Xml - iterate through a NodeList using for-each in Java?

You can iterate through a NodeList using a for-each loop in Java. Here's an example:

import org.w3c.dom.NodeList; import org.w3c.dom.Node; // Assuming you have a NodeList named "nodeList" NodeList nodeList = ...; // Your NodeList instance // Iterate through the NodeList using for-each loop for (int i = 0; i < nodeList.getLength(); i++) { Node node = nodeList.item(i); // Do something with each node System.out.println(node.getNodeName()); }

This code iterates through each node in the NodeList and prints its node name. Adjust the loop body to perform the desired operation with each node.

If you prefer using a for-each loop instead of a traditional for loop, you can convert the NodeList to a List and then use the for-each loop. Here's how you can do it:

import org.w3c.dom.Node; import org.w3c.dom.NodeList; import java.util.List; import java.util.ArrayList; // Assuming you have a NodeList named "nodeList" NodeList nodeList = ...; // Your NodeList instance // Convert NodeList to List List<Node> nodes = new ArrayList<>(); for (int i = 0; i < nodeList.getLength(); i++) { nodes.add(nodeList.item(i)); } // Iterate through the List using for-each loop for (Node node : nodes) { // Do something with each node System.out.println(node.getNodeName()); }

This approach converts the NodeList to a List of Node objects and then iterates through the list using a for-each loop.

Examples

  1. Java iterate through NodeList using for-each loop Description: Iterate through a NodeList retrieved from an XML document using a for-each loop in Java.

    NodeList nodeList = document.getElementsByTagName("tag"); for (int i = 0; i < nodeList.getLength(); i++) { Node node = nodeList.item(i); // Process node }

  2. Java iterate through NodeList using for-each and forEachRemaining Description: Utilize the forEachRemaining method of the NodeList iterator to iterate through a NodeList using for-each in Java.

    NodeList nodeList = document.getElementsByTagName("tag"); NodeListIterator iterator = new NodeListIterator(nodeList); iterator.forEachRemaining(node -> { // Process node });

  3. Java iterate through NodeList using forEach and Lambda expression Description: Use the forEach method of the NodeList object along with Lambda expressions to iterate through a NodeList in Java.

    NodeList nodeList = document.getElementsByTagName("tag"); nodeList.forEach(node -> { // Process node });

  4. Java iterate through NodeList using for-each and stream API Description: Utilize the Stream API in Java to convert NodeList to a Stream and then use for-each to iterate through it.

    NodeList nodeList = document.getElementsByTagName("tag"); Stream<Node> nodeStream = IntStream.range(0, nodeList.getLength()) .mapToObj(nodeList::item); nodeStream.forEach(node -> { // Process node });

  5. Java iterate through NodeList children using for-each Description: Iterate through child nodes of each node in a NodeList using for-each loop in Java.

    NodeList nodeList = document.getElementsByTagName("parentTag"); for (int i = 0; i < nodeList.getLength(); i++) { Node parent = nodeList.item(i); NodeList children = parent.getChildNodes(); for (int j = 0; j < children.getLength(); j++) { Node child = children.item(j); // Process child node } }

  6. Java iterate through NodeList elements with specific tag using for-each Description: Iterate through NodeList elements with a specific tag using for-each loop in Java.

    NodeList nodeList = document.getElementsByTagName("specificTag"); for (int i = 0; i < nodeList.getLength(); i++) { Node node = nodeList.item(i); // Process node }

  7. Java iterate through NodeList elements with attribute using for-each Description: Iterate through NodeList elements with a specific attribute using for-each loop in Java.

    NodeList nodeList = document.getElementsByTagName("tag"); for (int i = 0; i < nodeList.getLength(); i++) { Node node = nodeList.item(i); if (node.hasAttributes()) { NamedNodeMap attributes = node.getAttributes(); Node attribute = attributes.getNamedItem("attributeName"); if (attribute != null) { // Process node } } }

  8. Java iterate through NodeList elements with specific tag and attribute using for-each Description: Iterate through NodeList elements with a specific tag and attribute using for-each loop in Java.

    NodeList nodeList = document.getElementsByTagName("specificTag"); for (int i = 0; i < nodeList.getLength(); i++) { Node node = nodeList.item(i); if (node.hasAttributes()) { NamedNodeMap attributes = node.getAttributes(); Node attribute = attributes.getNamedItem("attributeName"); if (attribute != null && "attributeValue".equals(attribute.getNodeValue())) { // Process node } } }

  9. Java iterate through NodeList with filtering using for-each Description: Filter NodeList elements based on certain criteria and iterate through them using for-each loop in Java.

    NodeList nodeList = document.getElementsByTagName("tag"); for (int i = 0; i < nodeList.getLength(); i++) { Node node = nodeList.item(i); if (/* Add your filtering condition here */) { // Process node } }

  10. Java iterate through NodeList elements and extract values using for-each Description: Extract values from NodeList elements and iterate through them using for-each loop in Java.

    NodeList nodeList = document.getElementsByTagName("tag"); for (int i = 0; i < nodeList.getLength(); i++) { Node node = nodeList.item(i); String value = node.getTextContent(); // Process value }

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