Java tutorial
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 doc1 = factory.newDocumentBuilder().parse(new File("filename")); NodeList list = doc1.getElementsByTagName("entry"); Element element = (Element) list.item(0); Document doc2 = factory.newDocumentBuilder().parse(new File("infilename2.xml")); Node dup = doc2.importNode(element, true); doc2.getDocumentElement().appendChild(dup); } }