JMenu Help to Open Html page on local machine
<p>I am having difficulty on finding a tutorial that enables a JMenuItem labelled ("Help Contents") to open a html page that displays help contents.  The html page will be stored on the local machine eg C:\help.  I have created the following action listener that when clicked, displays a string.  This is only for test purposes to show that my ActionListener works.</p>

<pre><code>   private void jMenuItem3ActionPerformed(java.awt.event.ActionEvent evt) {
            // TODO add your handling code here:
            JOptionPane.showMessageDialog(null, "Help File Popup");
        }
</code></pre>

<p>In summary, how would I replace:</p>

<pre><code>JOptionPane.showMessageDialog(null, "Help File Popup");
</code></pre>

<p>So that when jMenuItem3 is pressed, an html page is loaded in the default browser.  Many thanks in advance!</p>
