Hello DOM

Here's the same program using DOM instead of JDOM. Which is simpler?

import java.io.*;
import org.w3c.dom.*;
import org.apache.xerces.dom.*;
import org.apache.xml.serialize.*;


public class HelloDOM {

  public static void main(String[] args) {

    try {

      DOMImplementation impl = DOMImplementationImpl.getDOMImplementation();
      //                       ^^^^^^^^^^^^^^^^^^^^^
      //                       Xerces Specific class

      Document hello = impl.createDocument(null, "GREETING", null);
      //                                   ^^^^              ^^^^
      //                               Namespace URI       DocType

      Element root = hello.getDocumentElement();

      // We can't use a raw string. Instead we have to first create
      // a text node.
      Text text = hello.createTextNode("Hello DOM!");
      root.appendChild(text);

      // Now that the document is created we need to *serialize* it
      try {
        OutputFormat format = new OutputFormat(hello);
        XMLSerializer serializer 
         = new XMLSerializer(System.out, format);
        serializer.serialize(root);
      }
      catch (IOException e) {
        System.err.println(e);
      }
    }
    catch (DOMException e) {
      e.printStackTrace();
    }

  }

}

Previous | Next | Top | Cafe con Leche

Copyright 2000, 2001 Elliotte Rusty Harold
elharo@metalab.unc.edu
Last Modified May 29, 2000