public static String addTarget(String staticDetail)
{
  String returnUrl
 
  Pattern pattern = Pattern.compile("<+");
  Matcher matcher = pattern.matcher(staticDetail);
 
  while(matcher.find())
  {
    int lessIndex = matcher.start();
    int greatIndex = staticDetail.indexOf(">", lessIndex + 1);
    int aIndex = staticDetail.indexOf("a", lessIndex + 1);
    int hrefIndex = staticDetail.indexOf("href", aIndex + 1);
    if(aIndex != -1 && hrefIndex != -1)
    {
      if(aIndex < greatIndex && hrefIndex < greatIndex)
      {
        int firstQuoteIndex = staticDetail.indexOf("\"", hrefIndex + 1);
        int secondQuoteIndex = staticDetail.indexOf("\"", firstQuoteIndex  + 1);
        returnURL = staticDetial.subString(fristQuoteIndex, secondQuoteIndex);
      }
    }
  }
  return returnUrl;
}

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import java.io.*;
import java.net.*;
 
public class Main extends JFrame
{
  private JTextField enterField;
  private Button goToURL;
  private JEditorPane contentsArea;
  private JPanel top;
 
  public Main ()
  {
    super("Alpha Browser");
    setSize(500,400);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    setVisible(true);
 
    Container container = getContentPane();
 
    top = new JPanel();
    enterField = new JTextField(40);
    goToURL = new Button("Visit");
    goToURL.addActionListener(
        new ActionListener()
        {
          public void actionPerformed (ActionEvent event)
          {
            loadPage(enterField.getText());
          }
        }
    );
 
    top.add(enterField);
    top.add(goToURL);
 
    container.add(top, BorderLayout.NORTH);
 
    contentsArea = new JEditorPane();
    contentsArea.setEditable(false);
    contentsArea.addHyperlinkListener(
        new HyperlinkListener()
        {
          public void hyperlinkUpdate(HyperlinkEvent event)
          {
            if(event.getEventType() == HyperlinkEvent.EventType.ACTIVATED)
              loadPage(event.getURL().toString());
          }
        }
    );
 
    container.add( new JScrollPane(contentsArea),
                   BorderLayout.CENTER);
 
    setContentPane(container);
  }
 
  private void loadPage(String loc)
  {
    try
    {
      contentsArea.setPage(loc);
      enterField.setText(loc);
    }
    catch (IOException ioException)
    {
      JOptionPane.showMessageDialog(null,
                                    "Unable to contact URL.\n\nPossible reasons for error:\n"+
                                    "1.) Server Timeout\n2.) Mis-typed URL\n3.) Internet connection error\n"+ioException.toString(),
                                    "Error in Contacting Given URL",
                                    JOptionPane.ERROR_MESSAGE);
    }
  }
 
  public static void main (String [] args)
  {
    Main main = new Main();
  }
}