Parsing an XML document using SAX Parser in Java

This is again a "getting started tutorial" of how to start using XML parsing concepts in java. For further details of using XML parsing please refer tutorials at : http://docs.oracle.com/javase/tutorial/jaxp/sax/index.html.

The program presented here is a simple demonstration of how to parse an XML document using SAX-XML parser for java. For demonstration purpose a sample .xml file is also included.

temp.xml:

<?xml version="1.0"?>
<company>
    <staff department="information security">
        <firstname>FIRST NAME-1</firstname>
        <lastname>LAST NAME-1</lastname>
        <nickname>STUDENT-1</nickname>
        <salary>100000</salary>
    </staff>
    <staff>
        <firstname>FIRST NAME-2</firstname>
        <lastname>LAST NAME-2</lastname>
        <nickname>STUDENT-2</nickname>
        <salary>200000</salary>
    </staff>
</company>


Temp.java :

import java.util.Hashtable;
import javax.xml.parsers.*;
import org.xml.sax.*;
import org.xml.sax.helpers.*;

public class Temp extends DefaultHandler{   
    private Hashtable tags;
    String tempVal=null;
   
    public static void main(String a[])throws Exception
    {
        SAXParserFactory spf = SAXParserFactory.newInstance();
        spf.setNamespaceAware(true);
        SAXParser saxParser=spf.newSAXParser();
        XMLReader reader=saxParser.getXMLReader();
        reader.setContentHandler(new Temp());
        reader.parse("temp.xml");       
    }
    public void startDocument()throws SAXException
    {
        tags=new Hashtable();
        System.out.println("------startDocument()--------");
    }
   
    public void startElement(String namespaceURI, String localName, String qName, Attributes atts)
    {
        System.out.println("------startElement() -------");
        System.out.println("namespaceURI="+namespaceURI);
        System.out.println("localname="+localName);
        System.out.println("qName="+qName);
        int attributes=atts.getLength();
        //Iterator iterator=atts.
        for(int i=0; i<attributes; i++)
        {
            System.out.println("attribute name="+atts.getLocalName(i));
            System.out.println("attribute value="+atts.getValue(i));
           
        }
    }
   
    public void characters(char[] ch, int start, int length) throws SAXException {
        tempVal = new String(ch,start,length);
        System.out.println("characters()/ Tag content value="+tempVal);
    }
   
    public void endElement(String uri, String localName,
            String qName) throws SAXException {
        System.out.println("---------endELement()-------");
        System.out.println("uri="+uri);
        System.out.println("localName="+localName);
        System.out.println("qName="+qName);
    }
   

}