Thread: JFileChooser

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
 
import javax.swing.*;
 
 
public class Notepad extends JFrame{
 
	/**
	 * @param args
	 */
	Notepad()
	{
		final JFrame f = new JFrame();
		Container cp = f.getContentPane();
 
		final JLabel dl = new JLabel("");
		cp.add(dl,BorderLayout.NORTH);
 
		final JLabel fl = new JLabel("");
		cp.add(fl,BorderLayout.SOUTH);
 
		JFileChooser fc =new JFileChooser(".");
		fc.setControlButtonsAreShown(false);
		cp.add(fc,BorderLayout.CENTER);
 
		//The MenuBar
		JMenuBar mb = new JMenuBar();
		setJMenuBar(mb);
 
		//The Menu
		JMenu m1  = new JMenu("File");
		JMenu m2 = new JMenu("Edit");
		JMenu m3 = new JMenu("View");
 
		//The Menu Items
		JMenuItem i1 = new JMenuItem("New");
		JMenuItem i2  = new JMenuItem("Open");
		JMenuItem i3 = new JMenuItem("Close");
 
		mb.add(m1);
		mb.add(m2);
		mb.add(m3);
 
		m1.add(i1);
		m1.add(i2);
		m1.add(i3);
 
		//The TextArea
		final JTextArea ta = new JTextArea();
		add(ta);
 
		//The New ActionListener
		i1.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e)
			{
				ta.setText(" ");
			}
		});
 
		//The Open ActionListener
		i2.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ae)
			{
 
 
				JFileChooser tfc = (JFileChooser) ae.getSource();
				String command = ae.getActionCommand();
				if(command.equals(JFileChooser.APPROVE_SELECTION))
				{
					File sf = tfc.getSelectedFile();
					dl.setText(sf.getParent());
					fl.setText(sf.getName());
				}
				else if(command.equals(JFileChooser.CANCEL_SELECTION))
				{
					dl.setText(" ");
					fl.setText(" ");
				}
				f.pack();
				f.setVisible(true);
			}
		});
 
	}
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Notepad m = new Notepad();
		m.setSize(500,500);
		m.setVisible(true);
 
	}
 
}

The JFileChooser is not opening when the 'open' is clicked.Instead,it is throwing a series of exceptions.

Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: javax.swing.JMenuItem cannot be cast to javax.swing.JFileChooser
at Notepad$2.actionPerformed(Notepad.java:70)
at javax.swing.AbstractButton.fireActionPerformed(Unk nown Source)
at javax.swing.AbstractButton$Handler.actionPerformed (Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed (Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unk nown Source)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mou seReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent( Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(U nknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unkno wn Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectio nPrivilege(Unknown Source)
at java.security.AccessControlContext$1.doIntersectio nPrivilege(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectio nPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilter s(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(U nknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarch y(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

Hi, you are wrong when doing this:

JFileChooser tfc = (JFileChooser) ae.getSource();

Because the object that generates the event is the menu item, thus this exception:

java.lang.ClassCastException: javax.swing.JMenuItem cannot be cast to javax.swing.JFileChooser

There are some useful examples about JFilechooser here and there.

Thank u very much....It has worked.