To add a hyperlink listener in Java, add it to the JEditorPane and set its contents. A lot of errors may be thrown, but this is how the hyperlink listener must be added.

 import javax.swing.*;import javax.swing.event.*;import java.io.*;public class hyperlink extends JFrame{    public static void main(String arg[])throws Exception    {        new hyperlink();    }    public hyperlink() throws Exception    {        String s = "http://www.sun.com";        JEditorPane pane = new JEditorPane(s);;        pane.setEditable(false);        final JEditorPane finalpane = pane;        pane.addHyperlinkListener(new HyperlinkListener()        {            public void hyperlinkUpdate(HyperlinkEvent r)            {                try                {             if(r.getEventType() == HyperlinkEvent.EventType.ACTIVATED)             finalpane.setPage(r.getURL());                }catch(Exception e)                {}            }        });         setContentPane(new JScrollPane(pane));         setSize(400,400);         setVisible(true);    }}