Remove All nodes : Node « XML « Java Tutorial

1. Java Tutorial
2. XML
3. Node

import java.io.File;

import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
  public static void main(String[] argv) throws Exception {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    factory.setValidating(true);
    factory.setExpandEntityReferences(false);

    Document doc = factory.newDocumentBuilder().parse(new File("filename"));

    removeAll(doc, Node.ELEMENT_NODE, "junk");

    removeAll(doc, Node.COMMENT_NODE, null);

    doc.normalize();  

  }
  public static void removeAll(Node node, short nodeType, String name) {
    if (node.getNodeType() == nodeType && (name == null || node.getNodeName().equals(name))) {
      node.getParentNode().removeChild(node);
    } else {
      NodeList list = node.getChildNodes();
      for (int i = 0; i < list.getLength(); i++) {
        removeAll(list.item(i), nodeType, name);
      }
    }
  }
}