Java NodeList.getLength()
Syntax
NodeList.getLength() has the following syntax.
int getLength()
Example
In the following code shows how to use NodeList.getLength() method.
// ww w .j a va 2s . c om
import java.io.File;
import java.io.IOException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
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[] args) throws IOException, ParserConfigurationException,
org.xml.sax.SAXException {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setIgnoringComments(true);
factory.setCoalescing(true); // Convert CDATA to Text nodes
factory.setNamespaceAware(false); // No namespaces: this is default
factory.setValidating(false); // Don't validate DTD: also default
DocumentBuilder parser = factory.newDocumentBuilder();
Document document = parser.parse(new File(args[0]));
NodeList sections = document.getElementsByTagName("sect1");
int numSections = sections.getLength();
for (int i = 0; i < numSections; i++) {
Element section = (Element) sections.item(i); // A <sect1>
Node title = section.getFirstChild();
while (title != null && title.getNodeType() != Node.ELEMENT_NODE)
title = title.getNextSibling();
if (title != null)
System.out.println(title.getFirstChild().getNodeValue());
}
}
}