Java Applet Security Restriction?

Question

Hi,
I wrote a java applet and test it on my computer. When I view it with applet viewer I can view the applet correctly. But when I try to view on the Internet Explorer, it said "Java Applet Started" But I didn't see anything on the screen.
This happens when I actually incorporate the JFileChooser. When I take out that, the applet can run.
What I think is, even if I run the applect in Internet Explorer, since I am actually running directly from my computer (i.e C:\Myapplet.html) and not even through Apache or IIS why I won't be able to carry out such operation?

Answer 1

Output from JavaConsole
Exception in thread "AWT-EventQueue-2" java.security.AccessControlException: access denied (java.util.PropertyPermission user.dir read)
     at java.security.AccessControlContext.checkPermission(Unknown Source)
     at java.security.AccessController.checkPermission(Unknown Source)
     at java.lang.SecurityManager.checkPermission(Unknown Source)
     at java.lang.SecurityManager.checkPropertyAccess(Unknown Source)
     at java.lang.System.getProperty(Unknown Source)
     at java.io.Win32FileSystem.getUserPath(Unknown Source)
     at java.io.Win32FileSystem.resolve(Unknown Source)
     at java.io.File.getAbsolutePath(Unknown Source)
     at sun.awt.shell.Win32ShellFolder2.<init>(Unknown Source)
     at sun.awt.shell.Win32ShellFolder2.listFiles(Unknown Source)
     at sun.awt.shell.ShellFolder.listFiles(Unknown Source)
     at sun.awt.shell.Win32ShellFolderManager2.get(Unknown Source)
     at sun.awt.shell.ShellFolder.get(Unknown Source)
     at javax.swing.plaf.metal.MetalFileChooserUI.updateUseShellFolder(Unknown Source)
     at javax.swing.plaf.metal.MetalFileChooserUI.installComponents(Unknown Source)
     at javax.swing.plaf.basic.BasicFileChooserUI.installUI(Unknown Source)
     at javax.swing.plaf.metal.MetalFileChooserUI.installUI(Unknown Source)
     at javax.swing.JComponent.setUI(Unknown Source)
     at javax.swing.JFileChooser.updateUI(Unknown Source)
     at javax.swing.JFileChooser.setup(Unknown Source)
     at javax.swing.JFileChooser.<init>(Unknown Source)
     at javax.swing.JFileChooser.<init>(Unknown Source)
     at FotoUpload.createGUI(FotoUpload.java:48)
     at FotoUpload.access$000(FotoUpload.java:24)
     at FotoUpload$1.run(FotoUpload.java:86)
     at java.awt.event.InvocationEvent.dispatch(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.run(Unknown Source)
This is what happen when I run my code below
* FotoUpload.java
* Created on November 15, 2006, 11:30 AM
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
* @author Leo Liu
import java.io.*;
import javax.swing.JApplet;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.JComponent.*;
import javax.swing.filechooser.*;
public class FotoUpload extends JApplet implements ActionListener{
    JButton BtnBrowse;
    JPanel PnlUpload;
    JFileChooser fcSelectFile;
    JTextArea log;
    private void createGUI(){
        setLayout(new BorderLayout(5,5));
        //Making Button
        BtnBrowse=new JButton("Browse");
        BtnBrowse.setToolTipText("Click on Browse to select picture");
        BtnBrowse.setAlignmentX(Component.RIGHT_ALIGNMENT);
        BtnBrowse.setPreferredSize(new Dimension(30,20));
        BtnBrowse.addActionListener(this);
        //Putting Button inside the panel and specifying the button size
        JPanel PnlBrowse = new JPanel();
        PnlBrowse.setLayout(new BoxLayout(PnlBrowse, BoxLayout.X_AXIS));
        PnlBrowse.add(Box.createRigidArea(new Dimension(30,20)));
        PnlBrowse.add(BtnBrowse);
        //Create a file chooser
        fcSelectFile = new JFileChooser();
        //Creating Panel to show selected pictures for uploading
        PnlUpload=new JPanel();
        PnlUpload.setBorder(javax.swing.BorderFactory.createTitledBorder("Place Pictures to Upload"));
        PnlUpload.setToolTipText("You can drag and drop images into this area");
        log=new JTextArea(5,20);
        log.setMargin(new Insets(5,5,5,5));
        log.setEditable(false);
        PnlUpload.add(log);
        //adding UI components to Applet
        add(PnlBrowse,BorderLayout.NORTH);
        add(PnlUpload,BorderLayout.CENTER);
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == BtnBrowse) {
            int returnVal = fcSelectFile.showDialog(this,"Select");
            if (returnVal == JFileChooser.APPROVE_OPTION) {
                File file[]= fcSelectFile.getSelectedFiles();
                //This is where a real application would open the file.
                int count=0;
                while(count<file.length)
                    log.append("Opening: " + file[count].getName() + ".\n");
                    count++;
            } else {
                log.append("Open command cancelled by user.\n");
    public void init() {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createGUI();
}It seems like I need to catch some exception or something. Can anyone help me?