XMLの解析

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.io.File;
import java.io.FileReader;
 
import javax.tv.xlet.Xlet;
import javax.tv.xlet.XletContext;
 
import org.havi.ui.HScene;
import org.havi.ui.HSceneFactory;
import org.havi.ui.HScreen;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.XMLReaderFactory;
 
public class Main extends DefaultHandler implements Xlet {
    Graphics g;
    int x = 100, y = 100;
 
    public void startElement(String uri,
            String localName,
            String qName,
            Attributes attributes)
    throws SAXException {
        g.drawString("start:uri="+uri+" localName="+localName+" qName="+qName, x, y); y+=50;
    }
    public void endElement(String uri,
            String localName,
            String qName) {
 
        g.drawString("end:" + qName, x, y); y+=50;
    }
 
    public void characters(char[] ch, int offset, int length) {
        if (offset != 0) {
            g.drawString("element ：" + new String(ch, offset, length), x, y); y+=50;
        }
    }
 
    public void initXlet(XletContext context){
        try {
            HScene hs= HSceneFactory.getInstance().getFullScreenScene(
                    HScreen.getDefaultHScreen().getDefaultHGraphicsDevice());
            g = hs.getGraphics();
            g.setColor(Color.white);
            g.setFont(new Font(null, Font.BOLD, 48));
            hs.setVisible(true);
            // 解析対象XMLファイルを指定
            FileReader r = new FileReader( new File("test.xml") );
            // XMLリーダを生成
            XMLReader reader = XMLReaderFactory.createXMLReader();
            reader.setContentHandler(this);
            reader.setErrorHandler(this);
            // 解析開始
            reader.parse(new org.xml.sax.InputSource(r));
 
        } catch (Throwable thr){
            g.drawString(thr.toString(), x, y); y+=50;
        }
    }
    public void startXlet(){    }
    public void pauseXlet(){    }
    public void destroyXlet(boolean unconditional){}