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Basic browser

simple basic browser.

Submitted By: harshakirans

Actions:

Rating:

Views: 9,465

Language: Java

Last Modified: February 25, 2007

Snippet

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.net.*;
import java.io.*;
import javax.swing.*;
import javax.swing.event.*;
public class WebBrowser
{
public static void main(String [] args)
{
JFrame frame = new EditorPaneFrame();
frame.show();
}
}
class EditorPaneFrame extends JFrame
{
private JTextField url;
private JCheckBox editable;
private JButton loadButton;
private JButton backButton;
private JEditorPane editorPane;
private Stack urlStack = new Stack();
public EditorPaneFrame()
{
setTitle("Java Web Browser");
setSize(600,400);
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
} );
// set up text field and load button for typing in URL
url = new JTextField(30);
loadButton = new JButton("Load");
loadButton.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
try
{
// remember URL for back button
urlStack.push(url.getText());
editorPane.setPage(url.getText());
}
catch(Exception e)
{
editorPane.setText("Error: " +e);
}
}
});
// set up back button and button action
backButton = new JButton("Back");
backButton.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
if(urlStack.size()<=1) return;
try
{
urlStack.pop();
String urlString = (String)urlStack.peek();
url.setText(urlString);
editorPane.setPage(urlString);
}
catch(IOException e)
{
editorPane.setText("Error : " +e);
}
}
});
editorPane = new JEditorPane();
editorPane.setEditable(false);
editorPane.addHyperlinkListener(new HyperlinkListener()
{
public void hyperlinkUpdate(HyperlinkEvent event)
{
if(event.getEventType() == HyperlinkEvent.EventType.ACTIVATED)
{
try
{
urlStack.push(event.getURL().toString());
url.setText(event.getURL().toString());
editorPane.setPage(event.getURL());
}
catch(IOException e)
{
editorPane.setText("Error: " + e);
}
}
}
});
editable = new JCheckBox();
editable.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
editorPane.setEditable(editable.isSelected());
}
});
Container contentPane = getContentPane();
contentPane.add(new JScrollPane(editorPane), "Center");
JPanel panel = new JPanel();
panel.add(new JLabel("URL"));
panel.add(url);
panel.add(loadButton);
panel.add(backButton);
panel.add(new JLabel("Editable"));
panel.add(editable);
contentPane.add(panel,"South");
}
}

Copy & Paste

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.net.*;
import java.io.*;
import javax.swing.*;
import javax.swing.event.*;

public class WebBrowser
{
     public static void main(String [] args)
     {
          JFrame frame = new EditorPaneFrame();
          frame.show();
     }
}
class EditorPaneFrame extends JFrame
{

private JTextField url;
     private JCheckBox editable;
     private JButton loadButton;
     private JButton backButton;
     private JEditorPane editorPane;
     private Stack urlStack = new Stack();

public EditorPaneFrame()
     {
          setTitle("Java Web Browser");
          setSize(600,400);
          addWindowListener(new WindowAdapter()
          {
               public void windowClosing(WindowEvent e)
               {
                    System.exit(0);
               }
          } );

// set up text field and load button for typing in URL

url = new JTextField(30);

loadButton = new JButton("Load");
          loadButton.addActionListener(new ActionListener()
          {
               public void actionPerformed(ActionEvent event)
               {
                    try
                    {
                         // remember URL for back button
                         urlStack.push(url.getText());
                         editorPane.setPage(url.getText());
                    }
                    catch(Exception e)
                    {
                         editorPane.setText("Error: " +e);
                    }
               }
          });

// set up back button and button action

backButton = new JButton("Back");
          backButton.addActionListener(new ActionListener()
          {
               public void actionPerformed(ActionEvent event)
               {
                    if(urlStack.size()<=1) return;
                    try
                    {
                         urlStack.pop();
                         String urlString = (String)urlStack.peek();
                         url.setText(urlString);
                         editorPane.setPage(urlString);
                    }
                    catch(IOException e)
                    {
                         editorPane.setText("Error : " +e);
                    }
               }
          });

editorPane = new JEditorPane();
          editorPane.setEditable(false);
          editorPane.addHyperlinkListener(new HyperlinkListener()
          {
               public void hyperlinkUpdate(HyperlinkEvent event)
               {
                    if(event.getEventType() == HyperlinkEvent.EventType.ACTIVATED)
                    {
                         try
                         {
                              urlStack.push(event.getURL().toString());
                              url.setText(event.getURL().toString());

editorPane.setPage(event.getURL());
                         }
                         catch(IOException e)
                         {
                              editorPane.setText("Error: " + e);
                         }
                    }
               }
          });

editable = new JCheckBox();
          editable.addActionListener(new ActionListener()
          {
               public void actionPerformed(ActionEvent event)
               {
                    editorPane.setEditable(editable.isSelected());
               }
          });

Container contentPane = getContentPane();
          contentPane.add(new JScrollPane(editorPane), "Center");

JPanel panel = new JPanel();
          panel.add(new JLabel("URL"));
          panel.add(url);
          panel.add(loadButton);
          panel.add(backButton);
          panel.add(new JLabel("Editable"));
          panel.add(editable);

contentPane.add(panel,"South");
     }

}

Comments
purandar 2008-08-26 10:40:30
hey... good post.. i compiled it n it showed no error .. but.how do i run it..?
purandar 2008-09-02 09:36:38
its not connecting da...jus rep me pls...wordlife4purandar@gmail.com
harshakirans 2008-09-04 00:18:44
Dude check if you have any automatic proxy configurations settings in your connection, And the URL encoding part is not included in the code..Well i think that should be the problem
jack_lorren 2009-03-06 08:41:46
i think it not automatic,you must write "http://"
nafees88 2009-06-06 00:48:44
www.chatpk.tk