Java by API/org.w3c.dom/Node

Node: appendChild(Node newChild)

/*
 
 <?xml version="1.0" encoding="UTF-8"?>
 <book id="javanut4">
    <chapter>
       <title>Chapter 1</title>
       <para/>
    </chapter>
    <chapter>
       <title>Chapter 2</title>
       <para/>
    </chapter>
    <chapter>
       <title>Chapter 3</title>
       <para/>
    </chapter>
 </book>
 */
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
public class MainClass {
  public static void main(String[] args) throws Exception{
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder db = dbf.newDocumentBuilder();
    Document document = db.newDocument();
    Element book = document.createElement("book"); 
    book.setAttribute("id", "javanut4");           
    document.appendChild(book);                    
    for(int i = 1; i <= 3; i++) {                  
        Element chapter = document.createElement("chapter");
        Element title = document.createElement("title");
        title.appendChild(document.createTextNode("Chapter " + i));
        chapter.appendChild(title);
        chapter.appendChild(document.createElement("para"));
        book.appendChild(chapter);
    }
    TransformerFactory tf = TransformerFactory.newInstance();
    Transformer transformer = tf.newTransformer();
    DOMSource source = new DOMSource(document);          
    StreamResult result = new StreamResult(System.out);  
    transformer.transform(source, result);
  }
}

Node.CDATA_SECTION_NODE

import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class MainClass {
  static public void main(String[] arg) {
    boolean validate = false;
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setValidating(validate);
    dbf.setNamespaceAware(true);
    dbf.setIgnoringElementContentWhitespace(true);
    Document doc = null;
    try {
      DocumentBuilder builder = dbf.newDocumentBuilder();
      doc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch (SAXException e) {
      System.exit(1);
    } catch (ParserConfigurationException e) {
      System.err.println(e);
      System.exit(1);
    } catch (IOException e) {
      System.err.println(e);
      System.exit(1);
    }
    TreeDumper td = new TreeDumper();
    td.dump(doc);
  }
  static String xmlString = "<PHONEBOOK>" +
  "  <PERSON>" +
  "   <NAME >Joe Wang</NAME>" +
  "   <EMAIL property=\"working\">joe@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>   " +
  "<NAME>Karol</NAME>" +    
  "   <EMAIL>karol@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>306-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>" +
  "   <NAME>Green</NAME>" +
  "   <EMAIL>green@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-414-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  </PHONEBOOK>";
}
class TreeDumper {
    public void dump(Document doc) {
        dumpLoop((Node)doc,"");
    }
    private void dumpLoop(Node node,String indent) {
        switch(node.getNodeType()) {
        case Node.CDATA_SECTION_NODE:
            System.out.println(indent + "CDATA_SECTION_NODE");
            break;
        case Node.ruMENT_NODE:
            System.out.println(indent + "COMMENT_NODE");
            break;
        case Node.DOCUMENT_FRAGMENT_NODE:
            System.out.println(indent + "DOCUMENT_FRAGMENT_NODE");
            break;
        case Node.DOCUMENT_NODE:
            System.out.println(indent + "DOCUMENT_NODE");
            break;
        case Node.DOCUMENT_TYPE_NODE:
            System.out.println(indent + "DOCUMENT_TYPE_NODE");
            break;
        case Node.ELEMENT_NODE:
            System.out.println(indent + "ELEMENT_NODE");
            break;
        case Node.ENTITY_NODE:
            System.out.println(indent + "ENTITY_NODE");
            break;
        case Node.ENTITY_REFERENCE_NODE:
            System.out.println(indent + "ENTITY_REFERENCE_NODE");
            break;
        case Node.NOTATION_NODE:
            System.out.println(indent + "NOTATION_NODE");
            break;
        case Node.PROCESSING_INSTRUCTION_NODE:
            System.out.println(indent + "PROCESSING_INSTRUCTION_NODE");
            break;
        case Node.TEXT_NODE:
            System.out.println(indent + "TEXT_NODE");
            break;
        default:
            System.out.println(indent + "Unknown node");
            break;
        }
        NodeList list = node.getChildNodes();
        for(int i=0; i<list.getLength(); i++)
            dumpLoop(list.item(i),indent + "   ");
    }
}

Node.COMMENT_NODE

import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class MainClass {
  static public void main(String[] arg) {
    boolean validate = false;
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setValidating(validate);
    dbf.setNamespaceAware(true);
    dbf.setIgnoringElementContentWhitespace(true);
    Document doc = null;
    try {
      DocumentBuilder builder = dbf.newDocumentBuilder();
      doc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch (SAXException e) {
      System.exit(1);
    } catch (ParserConfigurationException e) {
      System.err.println(e);
      System.exit(1);
    } catch (IOException e) {
      System.err.println(e);
      System.exit(1);
    }
    TreeDumper td = new TreeDumper();
    td.dump(doc);
  }
  static String xmlString = "<PHONEBOOK>" +
  "  <PERSON>" +
  "   <NAME >Joe Wang</NAME>" +
  "   <EMAIL property=\"working\">joe@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>   " +
  "<NAME>Karol</NAME>" +    
  "   <EMAIL>karol@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>306-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>" +
  "   <NAME>Green</NAME>" +
  "   <EMAIL>green@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-414-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  </PHONEBOOK>";
}
class TreeDumper {
    public void dump(Document doc) {
        dumpLoop((Node)doc,"");
    }
    private void dumpLoop(Node node,String indent) {
        switch(node.getNodeType()) {
        case Node.CDATA_SECTION_NODE:
            System.out.println(indent + "CDATA_SECTION_NODE");
            break;
        case Node.ruMENT_NODE:
            System.out.println(indent + "COMMENT_NODE");
            break;
        case Node.DOCUMENT_FRAGMENT_NODE:
            System.out.println(indent + "DOCUMENT_FRAGMENT_NODE");
            break;
        case Node.DOCUMENT_NODE:
            System.out.println(indent + "DOCUMENT_NODE");
            break;
        case Node.DOCUMENT_TYPE_NODE:
            System.out.println(indent + "DOCUMENT_TYPE_NODE");
            break;
        case Node.ELEMENT_NODE:
            System.out.println(indent + "ELEMENT_NODE");
            break;
        case Node.ENTITY_NODE:
            System.out.println(indent + "ENTITY_NODE");
            break;
        case Node.ENTITY_REFERENCE_NODE:
            System.out.println(indent + "ENTITY_REFERENCE_NODE");
            break;
        case Node.NOTATION_NODE:
            System.out.println(indent + "NOTATION_NODE");
            break;
        case Node.PROCESSING_INSTRUCTION_NODE:
            System.out.println(indent + "PROCESSING_INSTRUCTION_NODE");
            break;
        case Node.TEXT_NODE:
            System.out.println(indent + "TEXT_NODE");
            break;
        default:
            System.out.println(indent + "Unknown node");
            break;
        }
        NodeList list = node.getChildNodes();
        for(int i=0; i<list.getLength(); i++)
            dumpLoop(list.item(i),indent + "   ");
    }
}

Node.DOCUMENT_FRAGMENT_NODE

import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class MainClass {
  static public void main(String[] arg) {
    boolean validate = false;
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setValidating(validate);
    dbf.setNamespaceAware(true);
    dbf.setIgnoringElementContentWhitespace(true);
    Document doc = null;
    try {
      DocumentBuilder builder = dbf.newDocumentBuilder();
      doc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch (SAXException e) {
      System.exit(1);
    } catch (ParserConfigurationException e) {
      System.err.println(e);
      System.exit(1);
    } catch (IOException e) {
      System.err.println(e);
      System.exit(1);
    }
    TreeDumper td = new TreeDumper();
    td.dump(doc);
  }
  static String xmlString = "<PHONEBOOK>" +
  "  <PERSON>" +
  "   <NAME >Joe Wang</NAME>" +
  "   <EMAIL property=\"working\">joe@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>   " +
  "<NAME>Karol</NAME>" +    
  "   <EMAIL>karol@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>306-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>" +
  "   <NAME>Green</NAME>" +
  "   <EMAIL>green@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-414-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  </PHONEBOOK>";
}
class TreeDumper {
    public void dump(Document doc) {
        dumpLoop((Node)doc,"");
    }
    private void dumpLoop(Node node,String indent) {
        switch(node.getNodeType()) {
        case Node.CDATA_SECTION_NODE:
            System.out.println(indent + "CDATA_SECTION_NODE");
            break;
        case Node.ruMENT_NODE:
            System.out.println(indent + "COMMENT_NODE");
            break;
        case Node.DOCUMENT_FRAGMENT_NODE:
            System.out.println(indent + "DOCUMENT_FRAGMENT_NODE");
            break;
        case Node.DOCUMENT_NODE:
            System.out.println(indent + "DOCUMENT_NODE");
            break;
        case Node.DOCUMENT_TYPE_NODE:
            System.out.println(indent + "DOCUMENT_TYPE_NODE");
            break;
        case Node.ELEMENT_NODE:
            System.out.println(indent + "ELEMENT_NODE");
            break;
        case Node.ENTITY_NODE:
            System.out.println(indent + "ENTITY_NODE");
            break;
        case Node.ENTITY_REFERENCE_NODE:
            System.out.println(indent + "ENTITY_REFERENCE_NODE");
            break;
        case Node.NOTATION_NODE:
            System.out.println(indent + "NOTATION_NODE");
            break;
        case Node.PROCESSING_INSTRUCTION_NODE:
            System.out.println(indent + "PROCESSING_INSTRUCTION_NODE");
            break;
        case Node.TEXT_NODE:
            System.out.println(indent + "TEXT_NODE");
            break;
        default:
            System.out.println(indent + "Unknown node");
            break;
        }
        NodeList list = node.getChildNodes();
        for(int i=0; i<list.getLength(); i++)
            dumpLoop(list.item(i),indent + "   ");
    }
}

Node.DOCUMENT_NODE

import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class MainClass {
  static public void main(String[] arg) {
    boolean validate = false;
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setValidating(validate);
    dbf.setNamespaceAware(true);
    dbf.setIgnoringElementContentWhitespace(true);
    Document doc = null;
    try {
      DocumentBuilder builder = dbf.newDocumentBuilder();
      doc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch (SAXException e) {
      System.exit(1);
    } catch (ParserConfigurationException e) {
      System.err.println(e);
      System.exit(1);
    } catch (IOException e) {
      System.err.println(e);
      System.exit(1);
    }
    TreeDumper td = new TreeDumper();
    td.dump(doc);
  }
  static String xmlString = "<PHONEBOOK>" +
  "  <PERSON>" +
  "   <NAME >Joe Wang</NAME>" +
  "   <EMAIL property=\"working\">joe@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>   " +
  "<NAME>Karol</NAME>" +    
  "   <EMAIL>karol@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>306-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>" +
  "   <NAME>Green</NAME>" +
  "   <EMAIL>green@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-414-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  </PHONEBOOK>";
}
class TreeDumper {
    public void dump(Document doc) {
        dumpLoop((Node)doc,"");
    }
    private void dumpLoop(Node node,String indent) {
        switch(node.getNodeType()) {
        case Node.CDATA_SECTION_NODE:
            System.out.println(indent + "CDATA_SECTION_NODE");
            break;
        case Node.ruMENT_NODE:
            System.out.println(indent + "COMMENT_NODE");
            break;
        case Node.DOCUMENT_FRAGMENT_NODE:
            System.out.println(indent + "DOCUMENT_FRAGMENT_NODE");
            break;
        case Node.DOCUMENT_NODE:
            System.out.println(indent + "DOCUMENT_NODE");
            break;
        case Node.DOCUMENT_TYPE_NODE:
            System.out.println(indent + "DOCUMENT_TYPE_NODE");
            break;
        case Node.ELEMENT_NODE:
            System.out.println(indent + "ELEMENT_NODE");
            break;
        case Node.ENTITY_NODE:
            System.out.println(indent + "ENTITY_NODE");
            break;
        case Node.ENTITY_REFERENCE_NODE:
            System.out.println(indent + "ENTITY_REFERENCE_NODE");
            break;
        case Node.NOTATION_NODE:
            System.out.println(indent + "NOTATION_NODE");
            break;
        case Node.PROCESSING_INSTRUCTION_NODE:
            System.out.println(indent + "PROCESSING_INSTRUCTION_NODE");
            break;
        case Node.TEXT_NODE:
            System.out.println(indent + "TEXT_NODE");
            break;
        default:
            System.out.println(indent + "Unknown node");
            break;
        }
        NodeList list = node.getChildNodes();
        for(int i=0; i<list.getLength(); i++)
            dumpLoop(list.item(i),indent + "   ");
    }
}

Node.DOCUMENT_TYPE_NODE

import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class MainClass {
  static public void main(String[] arg) {
    boolean validate = false;
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setValidating(validate);
    dbf.setNamespaceAware(true);
    dbf.setIgnoringElementContentWhitespace(true);
    Document doc = null;
    try {
      DocumentBuilder builder = dbf.newDocumentBuilder();
      doc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch (SAXException e) {
      System.exit(1);
    } catch (ParserConfigurationException e) {
      System.err.println(e);
      System.exit(1);
    } catch (IOException e) {
      System.err.println(e);
      System.exit(1);
    }
    TreeDumper td = new TreeDumper();
    td.dump(doc);
  }
  static String xmlString = "<PHONEBOOK>" +
  "  <PERSON>" +
  "   <NAME >Joe Wang</NAME>" +
  "   <EMAIL property=\"working\">joe@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>   " +
  "<NAME>Karol</NAME>" +    
  "   <EMAIL>karol@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>306-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>" +
  "   <NAME>Green</NAME>" +
  "   <EMAIL>green@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-414-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  </PHONEBOOK>";
}
class TreeDumper {
    public void dump(Document doc) {
        dumpLoop((Node)doc,"");
    }
    private void dumpLoop(Node node,String indent) {
        switch(node.getNodeType()) {
        case Node.CDATA_SECTION_NODE:
            System.out.println(indent + "CDATA_SECTION_NODE");
            break;
        case Node.ruMENT_NODE:
            System.out.println(indent + "COMMENT_NODE");
            break;
        case Node.DOCUMENT_FRAGMENT_NODE:
            System.out.println(indent + "DOCUMENT_FRAGMENT_NODE");
            break;
        case Node.DOCUMENT_NODE:
            System.out.println(indent + "DOCUMENT_NODE");
            break;
        case Node.DOCUMENT_TYPE_NODE:
            System.out.println(indent + "DOCUMENT_TYPE_NODE");
            break;
        case Node.ELEMENT_NODE:
            System.out.println(indent + "ELEMENT_NODE");
            break;
        case Node.ENTITY_NODE:
            System.out.println(indent + "ENTITY_NODE");
            break;
        case Node.ENTITY_REFERENCE_NODE:
            System.out.println(indent + "ENTITY_REFERENCE_NODE");
            break;
        case Node.NOTATION_NODE:
            System.out.println(indent + "NOTATION_NODE");
            break;
        case Node.PROCESSING_INSTRUCTION_NODE:
            System.out.println(indent + "PROCESSING_INSTRUCTION_NODE");
            break;
        case Node.TEXT_NODE:
            System.out.println(indent + "TEXT_NODE");
            break;
        default:
            System.out.println(indent + "Unknown node");
            break;
        }
        NodeList list = node.getChildNodes();
        for(int i=0; i<list.getLength(); i++)
            dumpLoop(list.item(i),indent + "   ");
    }
}

Node.ELEMENT_NODE

import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class MainClass {
  static public void main(String[] arg) {
    boolean validate = false;
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setValidating(validate);
    dbf.setNamespaceAware(true);
    dbf.setIgnoringElementContentWhitespace(true);
    Document doc = null;
    try {
      DocumentBuilder builder = dbf.newDocumentBuilder();
      doc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch (SAXException e) {
      System.exit(1);
    } catch (ParserConfigurationException e) {
      System.err.println(e);
      System.exit(1);
    } catch (IOException e) {
      System.err.println(e);
      System.exit(1);
    }
    TreeDumper td = new TreeDumper();
    td.dump(doc);
  }
  static String xmlString = "<PHONEBOOK>" +
  "  <PERSON>" +
  "   <NAME >Joe Wang</NAME>" +
  "   <EMAIL property=\"working\">joe@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>   " +
  "<NAME>Karol</NAME>" +    
  "   <EMAIL>karol@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>306-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>" +
  "   <NAME>Green</NAME>" +
  "   <EMAIL>green@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-414-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  </PHONEBOOK>";
}
class TreeDumper {
    public void dump(Document doc) {
        dumpLoop((Node)doc,"");
    }
    private void dumpLoop(Node node,String indent) {
        switch(node.getNodeType()) {
        case Node.CDATA_SECTION_NODE:
            System.out.println(indent + "CDATA_SECTION_NODE");
            break;
        case Node.ruMENT_NODE:
            System.out.println(indent + "COMMENT_NODE");
            break;
        case Node.DOCUMENT_FRAGMENT_NODE:
            System.out.println(indent + "DOCUMENT_FRAGMENT_NODE");
            break;
        case Node.DOCUMENT_NODE:
            System.out.println(indent + "DOCUMENT_NODE");
            break;
        case Node.DOCUMENT_TYPE_NODE:
            System.out.println(indent + "DOCUMENT_TYPE_NODE");
            break;
        case Node.ELEMENT_NODE:
            System.out.println(indent + "ELEMENT_NODE");
            break;
        case Node.ENTITY_NODE:
            System.out.println(indent + "ENTITY_NODE");
            break;
        case Node.ENTITY_REFERENCE_NODE:
            System.out.println(indent + "ENTITY_REFERENCE_NODE");
            break;
        case Node.NOTATION_NODE:
            System.out.println(indent + "NOTATION_NODE");
            break;
        case Node.PROCESSING_INSTRUCTION_NODE:
            System.out.println(indent + "PROCESSING_INSTRUCTION_NODE");
            break;
        case Node.TEXT_NODE:
            System.out.println(indent + "TEXT_NODE");
            break;
        default:
            System.out.println(indent + "Unknown node");
            break;
        }
        NodeList list = node.getChildNodes();
        for(int i=0; i<list.getLength(); i++)
            dumpLoop(list.item(i),indent + "   ");
    }
}

Node.ENTITY_NODE

import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class MainClass {
  static public void main(String[] arg) {
    boolean validate = false;
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setValidating(validate);
    dbf.setNamespaceAware(true);
    dbf.setIgnoringElementContentWhitespace(true);
    Document doc = null;
    try {
      DocumentBuilder builder = dbf.newDocumentBuilder();
      doc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch (SAXException e) {
      System.exit(1);
    } catch (ParserConfigurationException e) {
      System.err.println(e);
      System.exit(1);
    } catch (IOException e) {
      System.err.println(e);
      System.exit(1);
    }
    TreeDumper td = new TreeDumper();
    td.dump(doc);
  }
  static String xmlString = "<PHONEBOOK>" +
  "  <PERSON>" +
  "   <NAME >Joe Wang</NAME>" +
  "   <EMAIL property=\"working\">joe@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>   " +
  "<NAME>Karol</NAME>" +    
  "   <EMAIL>karol@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>306-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>" +
  "   <NAME>Green</NAME>" +
  "   <EMAIL>green@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-414-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  </PHONEBOOK>";
}
class TreeDumper {
    public void dump(Document doc) {
        dumpLoop((Node)doc,"");
    }
    private void dumpLoop(Node node,String indent) {
        switch(node.getNodeType()) {
        case Node.CDATA_SECTION_NODE:
            System.out.println(indent + "CDATA_SECTION_NODE");
            break;
        case Node.ruMENT_NODE:
            System.out.println(indent + "COMMENT_NODE");
            break;
        case Node.DOCUMENT_FRAGMENT_NODE:
            System.out.println(indent + "DOCUMENT_FRAGMENT_NODE");
            break;
        case Node.DOCUMENT_NODE:
            System.out.println(indent + "DOCUMENT_NODE");
            break;
        case Node.DOCUMENT_TYPE_NODE:
            System.out.println(indent + "DOCUMENT_TYPE_NODE");
            break;
        case Node.ELEMENT_NODE:
            System.out.println(indent + "ELEMENT_NODE");
            break;
        case Node.ENTITY_NODE:
            System.out.println(indent + "ENTITY_NODE");
            break;
        case Node.ENTITY_REFERENCE_NODE:
            System.out.println(indent + "ENTITY_REFERENCE_NODE");
            break;
        case Node.NOTATION_NODE:
            System.out.println(indent + "NOTATION_NODE");
            break;
        case Node.PROCESSING_INSTRUCTION_NODE:
            System.out.println(indent + "PROCESSING_INSTRUCTION_NODE");
            break;
        case Node.TEXT_NODE:
            System.out.println(indent + "TEXT_NODE");
            break;
        default:
            System.out.println(indent + "Unknown node");
            break;
        }
        NodeList list = node.getChildNodes();
        for(int i=0; i<list.getLength(); i++)
            dumpLoop(list.item(i),indent + "   ");
    }
}

Node.ENTITY_REFERENCE_NODE

import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class MainClass {
  static public void main(String[] arg) {
    boolean validate = false;
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setValidating(validate);
    dbf.setNamespaceAware(true);
    dbf.setIgnoringElementContentWhitespace(true);
    Document doc = null;
    try {
      DocumentBuilder builder = dbf.newDocumentBuilder();
      doc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch (SAXException e) {
      System.exit(1);
    } catch (ParserConfigurationException e) {
      System.err.println(e);
      System.exit(1);
    } catch (IOException e) {
      System.err.println(e);
      System.exit(1);
    }
    TreeDumper td = new TreeDumper();
    td.dump(doc);
  }
  static String xmlString = "<PHONEBOOK>" +
  "  <PERSON>" +
  "   <NAME >Joe Wang</NAME>" +
  "   <EMAIL property=\"working\">joe@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>   " +
  "<NAME>Karol</NAME>" +    
  "   <EMAIL>karol@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>306-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>" +
  "   <NAME>Green</NAME>" +
  "   <EMAIL>green@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-414-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  </PHONEBOOK>";
}
class TreeDumper {
    public void dump(Document doc) {
        dumpLoop((Node)doc,"");
    }
    private void dumpLoop(Node node,String indent) {
        switch(node.getNodeType()) {
        case Node.CDATA_SECTION_NODE:
            System.out.println(indent + "CDATA_SECTION_NODE");
            break;
        case Node.ruMENT_NODE:
            System.out.println(indent + "COMMENT_NODE");
            break;
        case Node.DOCUMENT_FRAGMENT_NODE:
            System.out.println(indent + "DOCUMENT_FRAGMENT_NODE");
            break;
        case Node.DOCUMENT_NODE:
            System.out.println(indent + "DOCUMENT_NODE");
            break;
        case Node.DOCUMENT_TYPE_NODE:
            System.out.println(indent + "DOCUMENT_TYPE_NODE");
            break;
        case Node.ELEMENT_NODE:
            System.out.println(indent + "ELEMENT_NODE");
            break;
        case Node.ENTITY_NODE:
            System.out.println(indent + "ENTITY_NODE");
            break;
        case Node.ENTITY_REFERENCE_NODE:
            System.out.println(indent + "ENTITY_REFERENCE_NODE");
            break;
        case Node.NOTATION_NODE:
            System.out.println(indent + "NOTATION_NODE");
            break;
        case Node.PROCESSING_INSTRUCTION_NODE:
            System.out.println(indent + "PROCESSING_INSTRUCTION_NODE");
            break;
        case Node.TEXT_NODE:
            System.out.println(indent + "TEXT_NODE");
            break;
        default:
            System.out.println(indent + "Unknown node");
            break;
        }
        NodeList list = node.getChildNodes();
        for(int i=0; i<list.getLength(); i++)
            dumpLoop(list.item(i),indent + "   ");
    }
}

Node: getChildNodes()

/*
DOCTYPE node:
<!ELEMENT address (buildingnumber,street,city,state,zip)>
<!ATTLIST address xmlns CDATA #IMPLIED>
<!ELEMENT buildingnumber (#PCDATA)>
<!ELEMENT street (#PCDATA)>
<!ELEMENT city (#PCDATA)>
<!ELEMENT state (#PCDATA)>
<!ELEMENT zip (#PCDATA)>

Document body contents are:
 Node: address
 Node Type: Element
 Child Nodes of address are:
   Node: buildingnumber
   Node Type: Element
   Child Nodes of buildingnumber are:
     Node: #text
     Node Type: Text
     Content is:  29 
   Node: street
   Node Type: Element
   Child Nodes of street are:
     Node: #text
     Node Type: Text
     Content is:  South Street
   Node: city
   Node Type: Element
   Child Nodes of city are:
     Node: #text
     Node Type: Text
     Content is: Vancouver
   Node: state
   Node Type: Element
   Child Nodes of state are:
     Node: #text
     Node Type: Text
     Content is: BC
   Node: zip
   Node Type: Element
   Child Nodes of zip are:
     Node: #text
     Node Type: Text
     Content is: V6V 4U7
 */
import static org.w3c.dom.Node.ATTRIBUTE_NODE;
import static org.w3c.dom.Node.CDATA_SECTION_NODE;
import static org.w3c.dom.Node.ruMENT_NODE;
import static org.w3c.dom.Node.DOCUMENT_TYPE_NODE;
import static org.w3c.dom.Node.ELEMENT_NODE;
import static org.w3c.dom.Node.ENTITY_NODE;
import static org.w3c.dom.Node.ENTITY_REFERENCE_NODE;
import static org.w3c.dom.Node.NOTATION_NODE;
import static org.w3c.dom.Node.PROCESSING_INSTRUCTION_NODE;
import static org.w3c.dom.Node.TEXT_NODE;
import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentType;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
public class MainClass {
  public static void main(String args[]) {
    DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
    builderFactory.setNamespaceAware(true);       // Set namespace aware
    builderFactory.setValidating(true);           // and validating parser feaures
    builderFactory.setIgnoringElementContentWhitespace(true); 
    
    DocumentBuilder builder = null;
    try {
      builder = builderFactory.newDocumentBuilder();  // Create the parser
    } catch(ParserConfigurationException e) {
      e.printStackTrace();
    }
    Document xmlDoc = null;
    try {
      xmlDoc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch(SAXException e) {
      e.printStackTrace();
    } catch(IOException e) {
      e.printStackTrace();
    }
    DocumentType doctype = xmlDoc.getDoctype();       
    if(doctype == null) {                             
      System.out.println("DOCTYPE is null");
    } else {                                          
      System.out.println("DOCTYPE node:\n" + doctype.getInternalSubset());
    }
    System.out.println("\nDocument body contents are:");
    listNodes(xmlDoc.getDocumentElement(),"");         // Root element & children
  }
  static void listNodes(Node node, String indent) {
    String nodeName = node.getNodeName();
    System.out.println(indent+" Node: " + nodeName);
    short type = node.getNodeType();
    System.out.println(indent+" Node Type: " + nodeType(type));
    if(type == TEXT_NODE){
      System.out.println(indent+" Content is: "+((Text)node).getWholeText());
    }
    
    NodeList list = node.getChildNodes();       
    if(list.getLength() > 0) {                  
      System.out.println(indent+" Child Nodes of "+nodeName+" are:");
      for(int i = 0 ; i<list.getLength() ; i++) {
        listNodes(list.item(i),indent+"  ");     
      }
    }         
  }
  static String nodeType(short type) {
    switch(type) {
      case ELEMENT_NODE:                return "Element";
      case DOCUMENT_TYPE_NODE:          return "Document type";
      case ENTITY_NODE:                 return "Entity";
      case ENTITY_REFERENCE_NODE:       return "Entity reference";
      case NOTATION_NODE:               return "Notation";
      case TEXT_NODE:                   return "Text";
      case COMMENT_NODE:                return "Comment";
      case CDATA_SECTION_NODE:          return "CDATA Section";
      case ATTRIBUTE_NODE:              return "Attribute";
      case PROCESSING_INSTRUCTION_NODE: return "Attribute";
    }
    return "Unidentified";
  }
  static String xmlString ="<?xml version=\"1.0\"?>" +
      "  <!DOCTYPE address" +
      "  [" +
      "     <!ELEMENT address (buildingnumber, street, city, state, zip)>" +
      "     <!ATTLIST address xmlns CDATA #IMPLIED>" +
      "     <!ELEMENT buildingnumber (#PCDATA)>" +
      "     <!ELEMENT street (#PCDATA)>" +
      "     <!ELEMENT city (#PCDATA)>" +
      "     <!ELEMENT state (#PCDATA)>" +
      "     <!ELEMENT zip (#PCDATA)>" +
      "  ]>" +
      "" +
      "  <address>" +
      "    <buildingnumber> 29 </buildingnumber>" +
      "    <street> South Street</street>" +
      "    <city>Vancouver</city>" +
      "" +
      "    <state>BC</state>" +
      "    <zip>V6V 4U7</zip>" +
      "  </address>";
}

Node: getFirstChild()

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 MainClass {
  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());
    }
  }
}

Node: getNextSibling()

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 MainClass {
  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());
    }
  }
}

Node: getNodeName()

/*
DOCTYPE node:
<!ELEMENT address (buildingnumber,street,city,state,zip)>
<!ATTLIST address xmlns CDATA #IMPLIED>
<!ELEMENT buildingnumber (#PCDATA)>
<!ELEMENT street (#PCDATA)>
<!ELEMENT city (#PCDATA)>
<!ELEMENT state (#PCDATA)>
<!ELEMENT zip (#PCDATA)>

Document body contents are:
 Node: address
 Node Type: Element
 Child Nodes of address are:
   Node: buildingnumber
   Node Type: Element
   Child Nodes of buildingnumber are:
     Node: #text
     Node Type: Text
     Content is:  29 
   Node: street
   Node Type: Element
   Child Nodes of street are:
     Node: #text
     Node Type: Text
     Content is:  South Street
   Node: city
   Node Type: Element
   Child Nodes of city are:
     Node: #text
     Node Type: Text
     Content is: Vancouver
   Node: state
   Node Type: Element
   Child Nodes of state are:
     Node: #text
     Node Type: Text
     Content is: BC
   Node: zip
   Node Type: Element
   Child Nodes of zip are:
     Node: #text
     Node Type: Text
     Content is: V6V 4U7
 */
import static org.w3c.dom.Node.ATTRIBUTE_NODE;
import static org.w3c.dom.Node.CDATA_SECTION_NODE;
import static org.w3c.dom.Node.ruMENT_NODE;
import static org.w3c.dom.Node.DOCUMENT_TYPE_NODE;
import static org.w3c.dom.Node.ELEMENT_NODE;
import static org.w3c.dom.Node.ENTITY_NODE;
import static org.w3c.dom.Node.ENTITY_REFERENCE_NODE;
import static org.w3c.dom.Node.NOTATION_NODE;
import static org.w3c.dom.Node.PROCESSING_INSTRUCTION_NODE;
import static org.w3c.dom.Node.TEXT_NODE;
import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentType;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
public class MainClass {
  public static void main(String args[]) {
    DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
    builderFactory.setNamespaceAware(true);       // Set namespace aware
    builderFactory.setValidating(true);           // and validating parser feaures
    builderFactory.setIgnoringElementContentWhitespace(true); 
    
    DocumentBuilder builder = null;
    try {
      builder = builderFactory.newDocumentBuilder();  // Create the parser
    } catch(ParserConfigurationException e) {
      e.printStackTrace();
    }
    Document xmlDoc = null;
    try {
      xmlDoc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch(SAXException e) {
      e.printStackTrace();
    } catch(IOException e) {
      e.printStackTrace();
    }
    DocumentType doctype = xmlDoc.getDoctype();       
    if(doctype == null) {                             
      System.out.println("DOCTYPE is null");
    } else {                                          
      System.out.println("DOCTYPE node:\n" + doctype.getInternalSubset());
    }
    System.out.println("\nDocument body contents are:");
    listNodes(xmlDoc.getDocumentElement(),"");         // Root element & children
  }
  static void listNodes(Node node, String indent) {
    String nodeName = node.getNodeName();
    System.out.println(indent+" Node: " + nodeName);
    short type = node.getNodeType();
    System.out.println(indent+" Node Type: " + nodeType(type));
    if(type == TEXT_NODE){
      System.out.println(indent+" Content is: "+((Text)node).getWholeText());
    }
    
    NodeList list = node.getChildNodes();       
    if(list.getLength() > 0) {                  
      System.out.println(indent+" Child Nodes of "+nodeName+" are:");
      for(int i = 0 ; i<list.getLength() ; i++) {
        listNodes(list.item(i),indent+"  ");     
      }
    }         
  }
  static String nodeType(short type) {
    switch(type) {
      case ELEMENT_NODE:                return "Element";
      case DOCUMENT_TYPE_NODE:          return "Document type";
      case ENTITY_NODE:                 return "Entity";
      case ENTITY_REFERENCE_NODE:       return "Entity reference";
      case NOTATION_NODE:               return "Notation";
      case TEXT_NODE:                   return "Text";
      case COMMENT_NODE:                return "Comment";
      case CDATA_SECTION_NODE:          return "CDATA Section";
      case ATTRIBUTE_NODE:              return "Attribute";
      case PROCESSING_INSTRUCTION_NODE: return "Attribute";
    }
    return "Unidentified";
  }
  static String xmlString ="<?xml version=\"1.0\"?>" +
      "  <!DOCTYPE address" +
      "  [" +
      "     <!ELEMENT address (buildingnumber, street, city, state, zip)>" +
      "     <!ATTLIST address xmlns CDATA #IMPLIED>" +
      "     <!ELEMENT buildingnumber (#PCDATA)>" +
      "     <!ELEMENT street (#PCDATA)>" +
      "     <!ELEMENT city (#PCDATA)>" +
      "     <!ELEMENT state (#PCDATA)>" +
      "     <!ELEMENT zip (#PCDATA)>" +
      "  ]>" +
      "" +
      "  <address>" +
      "    <buildingnumber> 29 </buildingnumber>" +
      "    <street> South Street</street>" +
      "    <city>Vancouver</city>" +
      "" +
      "    <state>BC</state>" +
      "    <zip>V6V 4U7</zip>" +
      "  </address>";
}

Node: getNodeType()

/*
DOCTYPE node:
<!ELEMENT address (buildingnumber,street,city,state,zip)>
<!ATTLIST address xmlns CDATA #IMPLIED>
<!ELEMENT buildingnumber (#PCDATA)>
<!ELEMENT street (#PCDATA)>
<!ELEMENT city (#PCDATA)>
<!ELEMENT state (#PCDATA)>
<!ELEMENT zip (#PCDATA)>

Document body contents are:
 Node: address
 Node Type: Element
 Child Nodes of address are:
   Node: buildingnumber
   Node Type: Element
   Child Nodes of buildingnumber are:
     Node: #text
     Node Type: Text
     Content is:  29 
   Node: street
   Node Type: Element
   Child Nodes of street are:
     Node: #text
     Node Type: Text
     Content is:  South Street
   Node: city
   Node Type: Element
   Child Nodes of city are:
     Node: #text
     Node Type: Text
     Content is: Vancouver
   Node: state
   Node Type: Element
   Child Nodes of state are:
     Node: #text
     Node Type: Text
     Content is: BC
   Node: zip
   Node Type: Element
   Child Nodes of zip are:
     Node: #text
     Node Type: Text
     Content is: V6V 4U7
 */
import static org.w3c.dom.Node.ATTRIBUTE_NODE;
import static org.w3c.dom.Node.CDATA_SECTION_NODE;
import static org.w3c.dom.Node.ruMENT_NODE;
import static org.w3c.dom.Node.DOCUMENT_TYPE_NODE;
import static org.w3c.dom.Node.ELEMENT_NODE;
import static org.w3c.dom.Node.ENTITY_NODE;
import static org.w3c.dom.Node.ENTITY_REFERENCE_NODE;
import static org.w3c.dom.Node.NOTATION_NODE;
import static org.w3c.dom.Node.PROCESSING_INSTRUCTION_NODE;
import static org.w3c.dom.Node.TEXT_NODE;
import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentType;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
public class MainClass {
  public static void main(String args[]) {
    DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
    builderFactory.setNamespaceAware(true);       // Set namespace aware
    builderFactory.setValidating(true);           // and validating parser feaures
    builderFactory.setIgnoringElementContentWhitespace(true); 
    
    DocumentBuilder builder = null;
    try {
      builder = builderFactory.newDocumentBuilder();  // Create the parser
    } catch(ParserConfigurationException e) {
      e.printStackTrace();
    }
    Document xmlDoc = null;
    try {
      xmlDoc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch(SAXException e) {
      e.printStackTrace();
    } catch(IOException e) {
      e.printStackTrace();
    }
    DocumentType doctype = xmlDoc.getDoctype();       
    if(doctype == null) {                             
      System.out.println("DOCTYPE is null");
    } else {                                          
      System.out.println("DOCTYPE node:\n" + doctype.getInternalSubset());
    }
    System.out.println("\nDocument body contents are:");
    listNodes(xmlDoc.getDocumentElement(),"");         // Root element & children
  }
  static void listNodes(Node node, String indent) {
    String nodeName = node.getNodeName();
    System.out.println(indent+" Node: " + nodeName);
    short type = node.getNodeType();
    System.out.println(indent+" Node Type: " + nodeType(type));
    if(type == TEXT_NODE){
      System.out.println(indent+" Content is: "+((Text)node).getWholeText());
    }
    
    NodeList list = node.getChildNodes();       
    if(list.getLength() > 0) {                  
      System.out.println(indent+" Child Nodes of "+nodeName+" are:");
      for(int i = 0 ; i<list.getLength() ; i++) {
        listNodes(list.item(i),indent+"  ");     
      }
    }         
  }
  static String nodeType(short type) {
    switch(type) {
      case ELEMENT_NODE:                return "Element";
      case DOCUMENT_TYPE_NODE:          return "Document type";
      case ENTITY_NODE:                 return "Entity";
      case ENTITY_REFERENCE_NODE:       return "Entity reference";
      case NOTATION_NODE:               return "Notation";
      case TEXT_NODE:                   return "Text";
      case COMMENT_NODE:                return "Comment";
      case CDATA_SECTION_NODE:          return "CDATA Section";
      case ATTRIBUTE_NODE:              return "Attribute";
      case PROCESSING_INSTRUCTION_NODE: return "Attribute";
    }
    return "Unidentified";
  }
  static String xmlString ="<?xml version=\"1.0\"?>" +
      "  <!DOCTYPE address" +
      "  [" +
      "     <!ELEMENT address (buildingnumber, street, city, state, zip)>" +
      "     <!ATTLIST address xmlns CDATA #IMPLIED>" +
      "     <!ELEMENT buildingnumber (#PCDATA)>" +
      "     <!ELEMENT street (#PCDATA)>" +
      "     <!ELEMENT city (#PCDATA)>" +
      "     <!ELEMENT state (#PCDATA)>" +
      "     <!ELEMENT zip (#PCDATA)>" +
      "  ]>" +
      "" +
      "  <address>" +
      "    <buildingnumber> 29 </buildingnumber>" +
      "    <street> South Street</street>" +
      "    <city>Vancouver</city>" +
      "" +
      "    <state>BC</state>" +
      "    <zip>V6V 4U7</zip>" +
      "  </address>";
}

Node: getNodeValue()

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 MainClass {
  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());
    }
  }
}

Node: hasAttributes()

/*
DOCTYPE node:
<!ELEMENT circle (position)>
<!ATTLIST circle radius CDATA #REQUIRED>
<!ELEMENT position EMPTY>
<!ATTLIST position x CDATA #REQUIRED>
<!ATTLIST position y CDATA #REQUIRED>

Document body contents are:
 Node: circle
 Node Type: Element
 Element Attributes are:
 radius = 15
 Child Nodes of circle are:
   Node: position
   Node Type: Element
   Element Attributes are:
   x = 30
   y = 50
    */
import static org.w3c.dom.Node.ATTRIBUTE_NODE;
import static org.w3c.dom.Node.CDATA_SECTION_NODE;
import static org.w3c.dom.Node.ruMENT_NODE;
import static org.w3c.dom.Node.DOCUMENT_TYPE_NODE;
import static org.w3c.dom.Node.ELEMENT_NODE;
import static org.w3c.dom.Node.ENTITY_NODE;
import static org.w3c.dom.Node.ENTITY_REFERENCE_NODE;
import static org.w3c.dom.Node.NOTATION_NODE;
import static org.w3c.dom.Node.PROCESSING_INSTRUCTION_NODE;
import static org.w3c.dom.Node.TEXT_NODE;
import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentType;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
public class MainClass {
  public static void main(String args[]) {
    DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
    builderFactory.setValidating(true);           // and validating parser feaures
    builderFactory.setIgnoringElementContentWhitespace(true); 
    
    DocumentBuilder builder = null;
    try {
      builder = builderFactory.newDocumentBuilder();  // Create the parser
    } catch(ParserConfigurationException e) {
      e.printStackTrace();
    }
    Document xmlDoc = null;
    try {
      xmlDoc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch(SAXException e) {
      e.printStackTrace();
    } catch(IOException e) {
      e.printStackTrace();
    }
    DocumentType doctype = xmlDoc.getDoctype();       
    if(doctype == null) {                             
      System.out.println("DOCTYPE is null");
    } else {                                          
      System.out.println("DOCTYPE node:\n" + doctype.getInternalSubset());
    }
    System.out.println("\nDocument body contents are:");
    listNodes(xmlDoc.getDocumentElement(),"");         // Root element & children
  }
  static void listNodes(Node node, String indent) {
    String nodeName = node.getNodeName();
    System.out.println(indent+" Node: "+nodeName);
    short type =node.getNodeType();
    System.out.println(indent+" Node Type: " + nodeType(type));
    if(type == TEXT_NODE){
      System.out.println(indent+" Content is: "+((Text)node).getWholeText());
    } else if(node.hasAttributes()) {
      System.out.println(indent+" Element Attributes are:");
      NamedNodeMap attrs = node.getAttributes();  
      for(int i = 0 ; i<attrs.getLength() ; i++) {
        Attr attribute = (Attr)attrs.item(i);     
        System.out.println(indent+ " " + attribute.getName()+" = "+attribute.getValue());
      }
    }
    
    NodeList list = node.getChildNodes();       
    if(list.getLength() > 0) {                  
      System.out.println(indent+" Child Nodes of "+nodeName+" are:");
      for(int i = 0 ; i<list.getLength() ; i++) {
        listNodes(list.item(i),indent+"  ");      
      }
    }         
  }
  static String nodeType(short type) {
    switch(type) {
      case ELEMENT_NODE:                return "Element";
      case DOCUMENT_TYPE_NODE:          return "Document type";
      case ENTITY_NODE:                 return "Entity";
      case ENTITY_REFERENCE_NODE:       return "Entity reference";
      case NOTATION_NODE:               return "Notation";
      case TEXT_NODE:                   return "Text";
      case COMMENT_NODE:                return "Comment";
      case CDATA_SECTION_NODE:          return "CDATA Section";
      case ATTRIBUTE_NODE:              return "Attribute";
      case PROCESSING_INSTRUCTION_NODE: return "Attribute";
    }
    return "Unidentified";
  }
  static String xmlString ="<?xml version=\"1.0\"?>" +
      "<!DOCTYPE circle" +
      "[" +
      "   <!ELEMENT circle (position)>" +
      "   <!ATTLIST circle" +
      "             radius CDATA #REQUIRED" +
      "   >" +
      "   <!ELEMENT position EMPTY>" +
      "   <!ATTLIST position" +
      "             x CDATA #REQUIRED" +
      "             y CDATA #REQUIRED" +
      "   >" +
      "]>" +
      "<circle radius=\"15\">" +
      "  <position x=\"30\" y=\"50\"/>" +
      "</circle>";
}

Node.NOTATION_NODE

import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class MainClass {
  static public void main(String[] arg) {
    boolean validate = false;
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setValidating(validate);
    dbf.setNamespaceAware(true);
    dbf.setIgnoringElementContentWhitespace(true);
    Document doc = null;
    try {
      DocumentBuilder builder = dbf.newDocumentBuilder();
      doc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch (SAXException e) {
      System.exit(1);
    } catch (ParserConfigurationException e) {
      System.err.println(e);
      System.exit(1);
    } catch (IOException e) {
      System.err.println(e);
      System.exit(1);
    }
    TreeDumper td = new TreeDumper();
    td.dump(doc);
  }
  static String xmlString = "<PHONEBOOK>" +
  "  <PERSON>" +
  "   <NAME >Joe Wang</NAME>" +
  "   <EMAIL property=\"working\">joe@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>   " +
  "<NAME>Karol</NAME>" +    
  "   <EMAIL>karol@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>306-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>" +
  "   <NAME>Green</NAME>" +
  "   <EMAIL>green@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-414-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  </PHONEBOOK>";
}
class TreeDumper {
    public void dump(Document doc) {
        dumpLoop((Node)doc,"");
    }
    private void dumpLoop(Node node,String indent) {
        switch(node.getNodeType()) {
        case Node.CDATA_SECTION_NODE:
            System.out.println(indent + "CDATA_SECTION_NODE");
            break;
        case Node.ruMENT_NODE:
            System.out.println(indent + "COMMENT_NODE");
            break;
        case Node.DOCUMENT_FRAGMENT_NODE:
            System.out.println(indent + "DOCUMENT_FRAGMENT_NODE");
            break;
        case Node.DOCUMENT_NODE:
            System.out.println(indent + "DOCUMENT_NODE");
            break;
        case Node.DOCUMENT_TYPE_NODE:
            System.out.println(indent + "DOCUMENT_TYPE_NODE");
            break;
        case Node.ELEMENT_NODE:
            System.out.println(indent + "ELEMENT_NODE");
            break;
        case Node.ENTITY_NODE:
            System.out.println(indent + "ENTITY_NODE");
            break;
        case Node.ENTITY_REFERENCE_NODE:
            System.out.println(indent + "ENTITY_REFERENCE_NODE");
            break;
        case Node.NOTATION_NODE:
            System.out.println(indent + "NOTATION_NODE");
            break;
        case Node.PROCESSING_INSTRUCTION_NODE:
            System.out.println(indent + "PROCESSING_INSTRUCTION_NODE");
            break;
        case Node.TEXT_NODE:
            System.out.println(indent + "TEXT_NODE");
            break;
        default:
            System.out.println(indent + "Unknown node");
            break;
        }
        NodeList list = node.getChildNodes();
        for(int i=0; i<list.getLength(); i++)
            dumpLoop(list.item(i),indent + "   ");
    }
}

Node.PROCESSING_INSTRUCTION_NODE

import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class MainClass {
  static public void main(String[] arg) {
    boolean validate = false;
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setValidating(validate);
    dbf.setNamespaceAware(true);
    dbf.setIgnoringElementContentWhitespace(true);
    Document doc = null;
    try {
      DocumentBuilder builder = dbf.newDocumentBuilder();
      doc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch (SAXException e) {
      System.exit(1);
    } catch (ParserConfigurationException e) {
      System.err.println(e);
      System.exit(1);
    } catch (IOException e) {
      System.err.println(e);
      System.exit(1);
    }
    TreeDumper td = new TreeDumper();
    td.dump(doc);
  }
  static String xmlString = "<PHONEBOOK>" +
  "  <PERSON>" +
  "   <NAME >Joe Wang</NAME>" +
  "   <EMAIL property=\"working\">joe@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>   " +
  "<NAME>Karol</NAME>" +    
  "   <EMAIL>karol@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>306-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>" +
  "   <NAME>Green</NAME>" +
  "   <EMAIL>green@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-414-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  </PHONEBOOK>";
}
class TreeDumper {
    public void dump(Document doc) {
        dumpLoop((Node)doc,"");
    }
    private void dumpLoop(Node node,String indent) {
        switch(node.getNodeType()) {
        case Node.CDATA_SECTION_NODE:
            System.out.println(indent + "CDATA_SECTION_NODE");
            break;
        case Node.ruMENT_NODE:
            System.out.println(indent + "COMMENT_NODE");
            break;
        case Node.DOCUMENT_FRAGMENT_NODE:
            System.out.println(indent + "DOCUMENT_FRAGMENT_NODE");
            break;
        case Node.DOCUMENT_NODE:
            System.out.println(indent + "DOCUMENT_NODE");
            break;
        case Node.DOCUMENT_TYPE_NODE:
            System.out.println(indent + "DOCUMENT_TYPE_NODE");
            break;
        case Node.ELEMENT_NODE:
            System.out.println(indent + "ELEMENT_NODE");
            break;
        case Node.ENTITY_NODE:
            System.out.println(indent + "ENTITY_NODE");
            break;
        case Node.ENTITY_REFERENCE_NODE:
            System.out.println(indent + "ENTITY_REFERENCE_NODE");
            break;
        case Node.NOTATION_NODE:
            System.out.println(indent + "NOTATION_NODE");
            break;
        case Node.PROCESSING_INSTRUCTION_NODE:
            System.out.println(indent + "PROCESSING_INSTRUCTION_NODE");
            break;
        case Node.TEXT_NODE:
            System.out.println(indent + "TEXT_NODE");
            break;
        default:
            System.out.println(indent + "Unknown node");
            break;
        }
        NodeList list = node.getChildNodes();
        for(int i=0; i<list.getLength(); i++)
            dumpLoop(list.item(i),indent + "   ");
    }
}

Node.TEXT_NODE

import java.io.IOException;
import java.io.StringReader;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.ErrorHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
public class MainClass {
  static public void main(String[] arg) {
    boolean validate = false;
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setValidating(validate);
    dbf.setNamespaceAware(true);
    dbf.setIgnoringElementContentWhitespace(true);
    Document doc = null;
    try {
      DocumentBuilder builder = dbf.newDocumentBuilder();
      doc = builder.parse(new InputSource(new StringReader(xmlString)));
    } catch (SAXException e) {
      System.exit(1);
    } catch (ParserConfigurationException e) {
      System.err.println(e);
      System.exit(1);
    } catch (IOException e) {
      System.err.println(e);
      System.exit(1);
    }
    TreeDumper td = new TreeDumper();
    td.dump(doc);
  }
  static String xmlString = "<PHONEBOOK>" +
  "  <PERSON>" +
  "   <NAME >Joe Wang</NAME>" +
  "   <EMAIL property=\"working\">joe@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>   " +
  "<NAME>Karol</NAME>" +    
  "   <EMAIL>karol@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>306-999-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  <PERSON>" +
  "   <NAME>Green</NAME>" +
  "   <EMAIL>green@yourserver.ru</EMAIL>" +
  "   <TELEPHONE>202-414-9999</TELEPHONE>" +
  "   <WEB>www.jexp.ru</WEB>" +
  "  </PERSON>" +
  "  </PHONEBOOK>";
}
class TreeDumper {
    public void dump(Document doc) {
        dumpLoop((Node)doc,"");
    }
    private void dumpLoop(Node node,String indent) {
        switch(node.getNodeType()) {
        case Node.CDATA_SECTION_NODE:
            System.out.println(indent + "CDATA_SECTION_NODE");
            break;
        case Node.ruMENT_NODE:
            System.out.println(indent + "COMMENT_NODE");
            break;
        case Node.DOCUMENT_FRAGMENT_NODE:
            System.out.println(indent + "DOCUMENT_FRAGMENT_NODE");
            break;
        case Node.DOCUMENT_NODE:
            System.out.println(indent + "DOCUMENT_NODE");
            break;
        case Node.DOCUMENT_TYPE_NODE:
            System.out.println(indent + "DOCUMENT_TYPE_NODE");
            break;
        case Node.ELEMENT_NODE:
            System.out.println(indent + "ELEMENT_NODE");
            break;
        case Node.ENTITY_NODE:
            System.out.println(indent + "ENTITY_NODE");
            break;
        case Node.ENTITY_REFERENCE_NODE:
            System.out.println(indent + "ENTITY_REFERENCE_NODE");
            break;
        case Node.NOTATION_NODE:
            System.out.println(indent + "NOTATION_NODE");
            break;
        case Node.PROCESSING_INSTRUCTION_NODE:
            System.out.println(indent + "PROCESSING_INSTRUCTION_NODE");
            break;
        case Node.TEXT_NODE:
            System.out.println(indent + "TEXT_NODE");
            break;
        default:
            System.out.println(indent + "Unknown node");
            break;
        }
        NodeList list = node.getChildNodes();
        for(int i=0; i<list.getLength(); i++)
            dumpLoop(list.item(i),indent + "   ");
    }
}