Opening HTML file using a Jbutton

Question

can anybody tell me how can I open an HTML file using a Jbutton.
I have a help button on my menu of my GUI. I wanna open a html document using the help (jbutton)
thank you

Answer 1

call this class in your button action
import javax.swing.JInternalFrame;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.event.*;
import java.net.URL;
import java.net.MalformedURLException;
import java.io.*;
import javax.swing.text.*;
import javax.swing.JOptionPane;
import javax.swing.BorderFactory;
import javax.swing.border.*;
import javax.swing.JDesktopPane;
public class Taa extends JFrame implements HyperlinkListener{
     public JEditorPane hh;
     public JScrollPane ss;
*Taa default constructor
*@param Nothing
*@return Nothing
*@thorws nothing
*@see descon
public Taa(){
//set top left image in the gui
setIconImage(Toolkit.getDefaultToolkit().getImage("buttons/help.jpg"));
try{
     File f=new File("Here you can put your html"such as"Help.htm");
     String s = f.getAbsolutePath();
     s = "file:"+s;
     URL url = new URL(s);
hh=new JEditorPane(s);
hh.setEditable(false);
hh.addHyperlinkListener(this);
catch (MalformedURLException e) {
     System.out.println("Malformed URL: " + e);
catch (IOException e) {
     System.out.println("IOException: " + e);
     ss=new JScrollPane(hh);
     getContentPane().add(ss);
     setBounds(232,0,490,500);
     setResizable(false);
     show();
*Implementation of HyperlinkEvent
public void hyperlinkUpdate(HyperlinkEvent e) {
     if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
     linkActivated(e.getURL());
*this method activate link
*@param URL the URL
*@return Nothing
protected void linkActivated(URL u) {
     Cursor c = hh.getCursor();
     Cursor waitCursor = Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR);
     hh.setCursor(waitCursor);
     SwingUtilities.invokeLater(new PageLoader(u, c));
*this class load help files
class PageLoader implements Runnable {
*Taa default constructor
*@param Url the url,Cursor c
*@return Nothing
*@thorws nothing
*@see descon
     PageLoader(URL u, Cursor c) {
     url = u;
     cursor = c;
public void run() {
     if (url == null) {
          // restore the original cursor
          hh.setCursor(cursor);
          Container parent = hh.getParent();
          parent.repaint();
     } else {
          Document doc = hh.getDocument();
          try {
          hh.setPage(url);
          } catch (IOException ioe) {
          hh.setDocument(doc);
          getToolkit().beep();
          } finally {
          // schedule the cursor to revert after
          // the paint has happended.
          url = null;
          SwingUtilities.invokeLater(this);
     URL url;
     Cursor cursor;