Cannot resolve symbol....

[Andrew Hartman]

Hi, Im having a problem with compiling some code. Could anyone please tell me what the problem is:

  
import java.net.*;
import java.io.*;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class EditorPaneFrame extends JFrame 
{
public EditorPaneFrame()
{
setTitle("Simple Browser");
setSize(600, 400);
addWindowListener(new WindowAdaptor()
{public void windowClosing(WindowEvent e)
{System.exit(0);
}
});

//set up text field and go button for typing in a 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(IOException ioe)
{
editorPane.setText("Error: " +ioe);
}
}
});

// set up back button and button action

backButton = new JButton("Back");
backButton.addActionListner(new ActionListener()
{public void actionPerformed(ActionEvent event)
{
if (urlStack.size() <= 1) return;
try
{
// get URL from back button
urlStack.pop();

// show URL in text field
String urlString = (String)urlStack.peek();
url.setText(urlString);

editorPane.setPage(urlString);
}
catch(IOException ioe)
{
editorPane.setText("Error: " +ioe);
}
}
});

// set up HTML pane and hyperlink listener

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

// show URL in text field
url.setText(event.getURL().toString());

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

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

// put all control components in a panel

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

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

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

and a test file:

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

My compiling errors are:
EditorPaneFrame.java:15: cannot resolve symbol
symbol : class WindowAdaptor
location: class EditorPaneFrame
addWindowListener(new WindowAdaptor()
^
EditorPaneFrame.java:45: cannot resolve symbol
symbol : method addActionListner (<anonymous java.awt.event.ActionListener>
location: class javax.swing.JButton
backButton.addActionListner(new ActionListener()
^
2 errors
Hope someone can help, many thanks

[Craig Wood]

Looks like typos

    addWindowListener(new WindowAdapt[B]e[/B]r()
    backButton = new JButton("Back");
    backButton.addActionList[B]e[/B]ner(new ActionListener()