Something is wrong in the following program but I don't know where is the
error.
import java.awt.*;
import java.awt.event.*;
public class WindowMenu extends Frame implements ActionListener
{
private TextArea output;
public WindowMenu()
{
super("A Simple Window Application with a Menu");
addWindowListener(new WindowMenu.WindowEventHandler());
Toolkit toolkit = getToolkit();
Dimension wndSize = toolkit.getScreenSize();
initializeMenu();
setLayout (new BorderLayout());
output = new TextArea(5,30);
output.setEditable(false);
add("Center", output);
setBounds (wndSize.width/4, wndSize.height/4, wndSize.width/2,
wndSize.height/2);
setVisible(true);
}
private void initializeMenu()
{
MenuBar menuBar=new MenuBar();
setMenuBar(menuBar);
Menu fileMenu = new Menu("File");
MenuItem textDocItem = new MenuItem("Text Document");
MenuItem javaDocItem = new MenuItem("Java Document");
textDocItem.setActionCommand("TEXT Document");
javaDocItem.setActionCommand("JAVA Document");
textDocItem.addActionListener(this);
javaDocItem.addActionListener(this);
Menu newMenu = new Menu ("New");
newMenu.add(textDocItem);
newMenu.add(javaDocItem);
fileMenu.add(newMenu);
MenuItem openItem = new MenuItem("Open");
MenuItem closeItem = new MenuItem("Close");
MenuItem saveItem = new MenuItem("Save");
MenuItem saveAsItem = new MenuItem("Save As...");
MenuItem printItem = new MenuItem("Print");
openItem.setActionCommand("OPEN");
closeItem.setActionCommand("CLOSE");
saveItem.setActionCommand("SAVE");
saveAsItem.setActionCommand("SAVE AS");
printItem.setActionCommand("PRINT");
openItem.addActionListener(this);
closeItem.addActionListener(this);
saveItem.addActionListener(this);
saveAsItem.addActionListener(this);
printItem.addActionListener(this);
fileMenu.add(openItem);
fileMenu.add(closeItem);
fileMenu.addSeparator();
fileMenu.add(saveItem);
fileMenu.add(saveAsItem);
fileMenu.addSeparator();
fileMenu.add(printItem);
menuBar.add(fileMenu);
}
public void actionPerformed(ActionEvent e)
{
output.append(e.getActionCommand() + "Menu Item was clicked.\n");
}
public static void main (String[] args)
{
WindowMenu app =new WindowMenu();
}
class WindowEventHandler extends WindowAdapter
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
}
}
Thanks.
CW
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