مشکل در اجرای پروژه RSS Feeds

سلام من این کد رو  از یک  pdf  آموزشی گرفتم . ولی اجرا نمیشه. لینک دانلود پروژه : http://upir.ir/931/SimpleRssReader.zip

 package simple.Rss;

import simple.Rss.Data.RssItem;
import simple.Rss.uti.RssReader;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.ListView;


public class main extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        RssReader rssReader = new RssReader(">http://feeds.pcworld.com/pcworld/latestnews");

        ListView ListView1 = (ListView) findViewById(R.id.ListView1);
        ArrayAdapter adapter;
        try {
            adapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, rssReader.getItems());

            ListView1.setAdapter(adapter);
            ListView1.setOnItemClickListener(new ListListener(rssReader.getItems(), this));

        }
        catch (Exception e) {
            Log.e("simple Rss Reader", e.getMessage());
        }

    }
}

package simple.Rss.Data;

public class RssItem {

    private String title;
    private String link;


    public String getTitle() {
        return title;
    }


    public void setTitle(String title) {
        this.title = title;
    }


    public String getLink() {
        return link;
    }


    public void setLink(String link) {
        this.link = link;
    }
}



package simple.Rss.uti;

import java.util.List;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import simple.Rss.Data.RssItem;


public class RssReader {

    private String rssUrl;


    public RssReader(String rssUrl) {

        this.rssUrl = rssUrl;
    }


    public List getItems() throws Exception {

        SAXParserFactory factory = SAXParserFactory.newInstance();
        SAXParser saxParser = factory.newSAXParser();

        RssParseHandler handler = new RssParseHandler();

        saxParser.parse(rssUrl, handler);
        return handler.getItems();
    }

}




package simple.Rss;

import java.util.List;
import simple.Rss.Data.RssItem;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;


public class ListListener implements OnItemClickListener {

    List listItems;
    Activity      activity;


    public ListListener(List listItem, Activity activity) {

        this.listItems = listItem;
        this.activity = activity;

    }


    @Override
    public void onItemClick(AdapterView<?> parent, View view, int pos, long id) {

        Intent i = new Intent(Intent.ACTION_VIEW);
        i.setData(Uri.parse(listItems.get(pos).getLink()));
        activity.startActivity(i);

    }
}



package simple.Rss.uti;

import java.util.ArrayList;
import java.util.List;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import simple.Rss.Data.RssItem;


public class RssParseHandler extends DefaultHandler {

    private List rssItems;
    private RssItem       currentItem;
    private boolean       pasingTitle;
    private boolean       pasingLink;


    public RssParseHandler() {

        rssItems = new ArrayList();
    }


    public List getItems() {

        return rssItems;

    }


    @Override
    public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {

        if ("content-item".equals(qName)) {
            currentItem = new RssItem();

        } else if ("title".equals(qName)) {
            pasingTitle = true;
        } else if ("url".equals(qName)) {

            pasingLink = true;
        }
    }


    @Override
    public void endElement(String uri, String localName, String qName) throws SAXException {

        if ("content-item".equals(qName)) {
            rssItems.add(currentItem);
            currentItem = null;

        } else if ("title".equals(qName)) {
            pasingTitle = false;
        } else if ("url".equals(qName)) {

            pasingLink = false;
        }
    }


    @Override
    public void characters(char[] ch, int start, int length) throws SAXException {

        if (pasingTitle) {
            if (currentItem != null) {

                currentItem.setTitle(new String(ch, start, length));

            } else if (pasingLink) {

                if (currentItem != null) {

                    currentItem.setLink(new String(ch, start, length));

                    pasingLink = false;
                }

            }

        }

    }
}