// Create a factory object for creating DOM parsers and configure it
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setIgnoringComments(true); // We want to ignore comments
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
// Now use the factory to create a DOM parser, a.k.a. DocumentBuilder
DocumentBuilder parser = factory.newDocumentBuilder();
// Parse the file and build a Document tree to represent its content
Document document = parser.parse(new File(args[0]));
// Ask the document for a list of all <sect1> elements it contains
NodeList sections = document.getElementsByTagName("sect1");
// Loop through those <sect1> elements one at a time
int numSections = sections.getLength();
for(int i = 0; i < numSections; i++) {
Element section = (Element)sections.item(i); // A <sect1>
// The first Element child of each <sect1> should be a <title>
// element, but there may be some whitespace Text nodes first, so
// loop through the children until you find the first element
// child.
Node title = section.getFirstChild();
while(title != null && title.getNodeType() != Node.ELEMENT_NODE)
title = title.getNextSibling();
// Print the text contained in the Text node child of this element
if (title != null)
System.out.println(title.getFirstChild().getNodeValue());
}
