import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

public class BrowserCool extends JApplet {

   private JTextField tf = new JTextField("https://people.dsv.su.se/~pierre/courses/i.cgi?href=aa_public/home/main.txt");
   private JEditorPane ta = new JEditorPane();
  
   public void start() {
      tf.setColumns(40);
      tf.addActionListener(new L1());

      ta.setEditable(false);
      ta.addHyperlinkListener(new L2());

      JPanel p = new JPanel();     
      p.setLayout(new FlowLayout());
      p.add(tf);

      getContentPane().add("North", p);
      getContentPane().add("Center", new JScrollPane(ta));

      setSize(640, 480);
   }

   class L1 implements ActionListener {
      public void actionPerformed(ActionEvent ae) {
         try {
            ta.setPage(tf.getText());
         } catch(Exception e) {
            ta.setText("Error: " + e);
         }
         Toolkit.getDefaultToolkit().beep();
      }
   }

   class L2 implements HyperlinkListener {
      public void hyperlinkUpdate(HyperlinkEvent he) {
         if(he.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
            try {
               tf.setText(he.getURL().toString());
               ta.setPage(he.getURL());
            } catch(Exception e) {
               ta.setText("Error: " + e);
            }
            Toolkit.getDefaultToolkit().beep();
         }
      }
   }
}