applet to open new tab not working.here's my code

import java.applet.*; import java.awt.*; import java.net.*; import java.awt.event.*;

public class NewURL extends Applet implements ActionListener{

public void init(){ String link_Text = "google"; Button b = new Button(link_Text); b.addActionListener(this); add(b); }

public void actionPerformed(ActionEvent ae){ //get the button label Button source = (Button)ae.getSource(); String link = "http://www."+source.getLabel()+".com"; try { AppletContext a = getAppletContext(); URL url = new URL(link); a.showDocument(url,"_blank"); // a.showDocument(url,"_self"); // _self to open page in same window
} catch (MalformedURLException e){ System.out.println(e.getMessage()); } } }