Hyperlink trouble in JEditorPane

Question

Hi all,
I am having real trouble with getting a simple HTML document up and running in JAVA. WHY did they make it so HARD?
I want to be able to use internal links, e.g click here to go to top of page etc.
Now apparently I need to add a HyperlinkListener to the JEditorPane. In the code you'll see that i've commented it out. If its left in i get
DisplayHTML.java:61: addHyperlinkListener(javax.swing.event.HyperlinkListener) in javax.swing.JEditorPane cannot be applied to (DisplayHTML)If i change the start class to:
public class DisplayHTML extends JFrame implements ActionListener, HyperlinkListenerI get:
DisplayHTML.java:14: cannot resolve symbolAnd even if it did work there is still a mass of code that needs to be implemented for the internal links to work. grrrrrrrrrrrrr for a language that is meant to be excellent on the web it has poor support for HTML.
If anyone can shed any light on this I would be grateful. Many thanks
drb2k2
Anyway here is the code
import javax.swing.*;
import java.awt.*;
import javax.swing.text.StyledEditorKit;
import javax.swing.text.html.HTMLEditorKit;
import java.net.URL;
import java.net.MalformedURLException;
import java.awt.event.*;
import java.io.*;
public class DisplayHTML extends JFrame implements ActionListener
     Color Background = new Color(100, 135, 220);
     Color Buttons     = new Color(140, 170, 230);
     Container content;
     String Keep;
     JEditorPane jed;
     public DisplayHTML()
          UIManager.put("Button.select", Buttons);     
          content = getContentPane();
          content.setBackground(Background);
          BorderLayout border = new BorderLayout();
          content.setLayout(border);
          JPanel Button_Panel = new JPanel();
          BorderLayout buttons = new BorderLayout();
          Button_Panel.setLayout(buttons);
          Button_Panel.setBackground(Background);
          JButton Save = new JButton("Save");
          Save.setBackground(Buttons);
          Save.setToolTipText("Press here to save the results file in HTML format");
          Save.addActionListener(this);
          Save.setActionCommand("Save");
          Button_Panel.add(Save, BorderLayout.WEST);
          JButton Quit = new JButton("Quit");
          Quit.setBackground(Buttons);
          Quit.setToolTipText("Press here to exit the screen and loose results");
          Quit.addActionListener(this);
          Quit.setActionCommand("Quit");
          Button_Panel.add(Quit, BorderLayout.EAST);
          content.add(Button_Panel, BorderLayout.NORTH);
          String str = new String("file:\\" + System.getProperty("user.dir") + "\\" +"Analysis.html");
          try
               URL url =new URL(str);
               HTMLEditorKit lhekFile = new HTMLEditorKit();
               jed =new JEditorPane();
               jed.setEditorKit( lhekFile );
          //     jed.addHyperlinkListener(this);
               jed.setEditable(false);
               JScrollPane htmlScroll = new JScrollPane(jed);
               htmlScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
               htmlScroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
               jed.setPage(url);
               content.add(htmlScroll, BorderLayout.CENTER);
          catch(MalformedURLException e){System.out.println("can't find file");}
          catch(IOException e1){System.out.println("can't load file");}
          setSize(400,400);
          setVisible(true);
     public void actionPerformed(ActionEvent e)
}

Answer 1

whoops, forgot to include the code
import javax.swing.*;
import java.awt.*;
import java.net.URL;
import java.net.MalformedURLException;
import javax.swing.text.html.*;
import java.awt.event.*;
import java.io.*;
public class DisplayHTML extends JFrame implements ActionListener
     Color Background = new Color(100, 135, 220);
     Color Buttons     = new Color(140, 170, 230);
     Container content;
     String Keep;
     JEditorPane jed;
     public DisplayHTML()
          UIManager.put("Button.select", Buttons);     
          content = getContentPane();
          content.setBackground(Background);
          BorderLayout border = new BorderLayout();
          content.setLayout(border);
          JPanel Button_Panel = new JPanel();
          BorderLayout buttons = new BorderLayout();
          Button_Panel.setLayout(buttons);
          Button_Panel.setBackground(Background);
          JButton Save = new JButton("Save");
          Save.setBackground(Buttons);
          Save.setToolTipText("Press here to save the results file in HTML format");
          Save.addActionListener(this);
          Save.setActionCommand("Save");
          Button_Panel.add(Save, BorderLayout.WEST);
          JButton Quit = new JButton("Quit");
          Quit.setBackground(Buttons);
          Quit.setToolTipText("Press here to exit the screen and loose results");
          Quit.addActionListener(this);
          Quit.setActionCommand("Quit");
          Button_Panel.add(Quit, BorderLayout.EAST);
          content.add(Button_Panel, BorderLayout.NORTH);
          String str = new String("file:\\" + System.getProperty("user.dir") + "\\" +"Analysis.html");
          try
               URL url =new URL(str);
               HTMLEditorKit lhekFile = new HTMLEditorKit();
               jed =new JEditorPane();
               jed.setEditorKit( lhekFile );
               jed.setContentType("text/html");       
               jed.addHyperlinkListener(new javax.swing.event.HyperlinkListener()
                    {public void hyperlinkUpdate(javax.swing.event.HyperlinkEvent e)
                         JEditorPane pane = (JEditorPane) e.getSource();
                          if (e instanceof HTMLFrameHyperlinkEvent)
                              HTMLFrameHyperlinkEvent  evt = (HTMLFrameHyperlinkEvent)e;
                              HTMLDocument doc = (HTMLDocument)pane.getDocument();
                              doc.processHTMLFrameHyperlinkEvent(evt);
                          else
                              try
                                    pane.setPage(e.getURL());
                              } catch (Throwable t)
                              {t.printStackTrace();}
               jed.setEditable(false);
               JScrollPane htmlScroll = new JScrollPane(jed);
               htmlScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
               htmlScroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
               jed.setPage(url);
               content.add(htmlScroll, BorderLayout.CENTER);
          catch(MalformedURLException e){System.out.println("can't find file");}
          catch(IOException e1){System.out.println("can't load file");}
          setSize(400,400);
          setVisible(true);
     public void actionPerformed(ActionEvent e)
}