Java applet in browser

When i try to put my new applet in an browser, i get errors like can't find List.class and so on, some of the things from java.util the user interface is made in pure awt. Any idea how to solv this, when i lunch from jbuilder it works.

The Collection classes (of which List is a part) are available only since jdk1.2
Most browsers do not have built-in support for jdk1.2+
If you want to use the new classes, you need to:
1. Get the JRE1.3
2. Run your html page through HTMLConverter

Similar Messages

Problem in display file in java applet embeded browser

hi, i am facing problem to display the file from local drive in java applet embeded browser. here is the error message i get:
Exception loading file from path:java.security.AccessControlException: access denied (java.util.PropertyPermission user.dir read)
i think it should be the java security problem and i have try to get the solution from internet. i try to solve by using the fllowing method:
keytool -genkey -keyalg rsa -alias yourkey
keytool -export -alias yourkey -file yourcert.crt
javac yourapplet.java
jar cvf yourapplet.jar yourapplet.class
jarsigner yourapplet.jar yourkey
but the command prompt ask me to enter the keystore password. i try to enter any password. but i show me the error:
keytool error: java.io.IOException: Keystore was tampered with, or password was incorrect.
So may i know what is the problem actually?Thanks a lot.

Hi,
here is the sample coding :
import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.behaviors.mouse.MouseRotate;
import com.sun.j3d.utils.behaviors.mouse.MouseZoom;
import com.sun.j3d.utils.behaviors.mouse.MouseTranslate;
import javax.media.j3d.*;
import javax.vecmath.*;
import java.net.URL;
import java.net.MalformedURLException;
import org.web3d.j3d.loaders.VRML97Loader;
import com.sun.j3d.loaders.Scene;
public class SimpleVrml extends Applet implements ActionListener {
String           location;
String           initLocation;
Canvas3D     canvas;
SimpleUniverse     universe;
TransformGroup     vpTransGroup;
VRML97Loader     loader;
View          view;
Panel          panel;
Label          label;
BranchGroup     sceneRoot;
TransformGroup     examineGroup;
BranchGroup     sceneGroup;
BoundingSphere     sceneBounds;
DirectionalLight     headLight;
AmbientLight     ambLight;
TextField      textField;
Cursor          waitCursor;
Cursor          handCursor;
public SimpleVrml() {
initLocation="cylinder.wrl";
     setLayout(new BorderLayout());
     GraphicsConfiguration config =SimpleUniverse.getPreferredConfiguration();
     setLayout(new BorderLayout());
     canvas = new Canvas3D(config);
     add("Center",canvas);
     panel = new Panel();
     panel.setLayout(new FlowLayout(FlowLayout.LEFT));
     textField = new TextField(initLocation,60);
     textField.addActionListener(this);
     label = new Label("Location:");
     panel.add(label);
     panel.add(textField);
     add("North",panel);
     waitCursor = new Cursor(Cursor.WAIT_CURSOR);
     handCursor = new Cursor(Cursor.HAND_CURSOR);
     universe = new SimpleUniverse(canvas);
     ViewingPlatform viewingPlatform = universe.getViewingPlatform();
     vpTransGroup = viewingPlatform.getViewPlatformTransform();
     Viewer viewer = universe.getViewer();
     view = viewer.getView();
     setupBehavior();
     loader = new VRML97Loader();
     gotoLocation(initLocation);
public void actionPerformed(ActionEvent ae) {
     gotoLocation(textField.getText());
void gotoLocation(String location) {
     canvas.setCursor(waitCursor);
     if (sceneGroup != null) {
     sceneGroup.detach();
     Scene scene = null;
     try {
     URL loadUrl = new URL(location);
     try {
          // load the scene
          scene = loader.load(new URL(location));
     } catch (Exception e) {
          System.out.println("Exception loading URL:" + e);
     } catch (MalformedURLException badUrl) {
     // location may be a path name
     try {
          // load the scene
          scene = loader.load(location);
     } catch (Exception e) {
          System.out.println("Exception loading file from path:" + e);
     if (scene != null) {
     // get the scene group
     sceneGroup = scene.getSceneGroup();
     sceneGroup.setCapability(BranchGroup.ALLOW_DETACH);
     sceneGroup.setCapability(BranchGroup.ALLOW_BOUNDS_READ);
     // add the scene group to the scene
     examineGroup.addChild(sceneGroup);
     // now that the scene group is "live" we can inquire the bounds
     sceneBounds = (BoundingSphere)sceneGroup.getBounds();
     // set up a viewpoint to include the bounds
     setViewpoint();
     canvas.setCursor(handCursor);
void setViewpoint() {
     Transform3D viewTrans = new Transform3D();
     Transform3D eyeTrans = new Transform3D();
     // point the view at the center of the object
     Point3d center = new Point3d();
     sceneBounds.getCenter(center);
     double radius = sceneBounds.getRadius();
     Vector3d temp = new Vector3d(center);
     viewTrans.set(temp);
     // pull the eye back far enough to see the whole object
     double eyeDist = 1.4*radius / Math.tan(view.getFieldOfView() / 2.0);
     temp.x = 0.0;
     temp.y = 0.0;
     temp.z = eyeDist;
     eyeTrans.set(temp);
     viewTrans.mul(eyeTrans);
     // set the view transform
     vpTransGroup.setTransform(viewTrans);
private void setupBehavior() {
     sceneRoot = new BranchGroup();
     examineGroup = new TransformGroup();
     examineGroup.setCapability(TransformGroup.ALLOW_CHILDREN_EXTEND);
     examineGroup.setCapability(TransformGroup.ALLOW_CHILDREN_READ);
     examineGroup.setCapability(TransformGroup.ALLOW_CHILDREN_WRITE);
     examineGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
     examineGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
     sceneRoot.addChild(examineGroup);
     BoundingSphere behaviorBounds = new BoundingSphere(new Point3d(),
          Double.MAX_VALUE);
     MouseRotate mr = new MouseRotate();
     mr.setTransformGroup(examineGroup);
     mr.setSchedulingBounds(behaviorBounds);
     sceneRoot.addChild(mr);
     MouseTranslate mt = new MouseTranslate();
     mt.setTransformGroup(examineGroup);
     mt.setSchedulingBounds(behaviorBounds);
     sceneRoot.addChild(mt);
     MouseZoom mz = new MouseZoom();
     mz.setTransformGroup(examineGroup);
     mz.setSchedulingBounds(behaviorBounds);
     sceneRoot.addChild(mz);
     BoundingSphere lightBounds =
     new BoundingSphere(new Point3d(), Double.MAX_VALUE);
ambLight = new AmbientLight(true, new Color3f(1.0f, 1.0f, 1.0f));
ambLight.setInfluencingBounds(lightBounds);
ambLight.setCapability(Light.ALLOW_STATE_WRITE);
sceneRoot.addChild(ambLight);
headLight = new DirectionalLight();
headLight.setCapability(Light.ALLOW_STATE_WRITE);
headLight.setInfluencingBounds(lightBounds);
sceneRoot.addChild(headLight);
     universe.addBranchGraph(sceneRoot);
public static void main(String[] args) {
new MainFrame(new SimpleVrml(), 780, 780);
cylinder.wrl :
#VRML V2.0 utf8
# A cylinder
Shape {
appearance Appearance {
material Material { }
geometry Cylinder {
height 2.0
radius 1.5
view.html:
<html>
<applet code="SimpleVrml.class" width=600 height=600>
</applet>
</html>
error msg that i get :
Exception loading file from path:java.security.AccessControlException: access denied (java.util.PropertyPermission user.dir read)
i can display the wrl file in applet itself but i can't display in the browser.is it any problem with my code?Urgent, please help me. Thanks.

64-bit firefox on ubuntu 11.04 crashes trying to run 32-bit java applet, should this be possible?

on 64-bit Ubuntu installation I need to be able to run a 32-bit java applet within browser. If this is possible, how? With icedtea6 plugin (for 64-bit jre) firefox crashes when applet first starts to run.
11.0+build1-0ubuntu0.11.04.1

Hi,
You can try to install the Oracle Java via the Ubuntu Software Manager/Update Manager/PackageKit/Package Manager, if it is an option. Please note that you may have to temporarily disable the IcedTea plugin in '''Tools '''('''Alt '''+ '''T''') > '''Add-ons''' > '''Plugins '''to prevent conflicts when playing Java content in Firefox. Posting in the [http://ubuntuforums.org/ Ubuntu forums] would also be very helpful.

I am trying to use an education program that needs Java applets to install and use and it will not use Safari. When I download IE from the web it will not install. How can I get a browser that will work on my MacAir for travel use of this program?

I am trying to use and education program that needs Java applets and it will not run on Safari. IE will not install from the web. How do I get a browser that will work to install so I can use this program when I travel.

Try using FireFox. IE will only run on a Mac if you run Windows on the Mac.
Windows on Intel Macs
There are presently several alternatives for running Windows on Intel Macs.
Install the Apple Boot Camp software. Purchase Windows 7 or Windows 8. Follow instructions in the Boot Camp documentation on installation of Boot Camp, creating Driver CD, and installing Windows. Boot Camp enables you to boot the computer into OS X or Windows.
Parallels Desktop for Mac and Windows XP, Vista Business, Vista Ultimate, or Windows 7. Parallels is software virtualization that enables running Windows concurrently with OS X.
VM Fusion and Windows XP, Vista Business, Vista Ultimate, or Windows 7. VM Fusion is software virtualization that enables running Windows concurrently with OS X.
CrossOver which enables running many Windows applications without having to install Windows. The Windows applications can run concurrently with OS X.
VirtualBox is a new Open Source freeware virtual machine such as VM Fusion and Parallels that was developed by Solaris. It is not as fully developed for the Mac as Parallels and VM Fusion.
Note that Parallels and VM Fusion can also run other operating systems such as Linux, Unix, OS/2, Solaris, etc. There are performance differences between dual-boot systems and virtualization. The latter tend to be a little slower (not much) and do not provide the video performance of the dual-boot system. See MacTech.com's Virtualization Benchmarking for comparisons of Boot Camp, Parallels, and VM Fusion. A more recent comparison of Parallels, VM Fusion, and Virtual Box is found at Virtualization Benchmarks- Parallels 10 vs. Fusion 7 vs. VirtualBox. Boot Camp is only available with Leopard and later. Except for Crossover and a couple of similar alternatives like DarWine you must have a valid installer disc for Windows.
You must also have an internal optical drive for installing Windows. Windows cannot be installed from an external optical drive.

Java Applets not running in Any browser

Hi,
I have JRE / JSE (1.6.17) installed on a windows 7, 32 bit Intel Machine.
I am able to do all the programming and stuff (in Java), but when i try to open a web page with a Java Applet, it just does not show.
The page gives a message saying that an additional plugin is required.
I tried, Google Chrome, Firefox, Internet Explorer...all have the same problem.
The environment variables are correctly set.
This is something completely new for me, so would appreciate some help

Actually i think its more related to JRE.
I was actually referring to general applet loading.
I cannot open any applet in any browser.

Some Java applets do not work after silent installation, solved by toggling "Enable Java content in the browser" - Why?

We have about 1,800 workstations running Windows 7 (both 32-bit and 64-bit) running various versions of the Java JRE from 6 update 32 through 7 update 51. Most are on 6 update 45. We would like to standardize on Java 7 update 51 (32-bit) and get everyone updated to that version for security reasons.
For the past two weeks, we have been having trouble with our installation pre-pilot. What we are seeing is that our procedure successfully closes any open Internet Explorer windows and Java-related processes, uninstalls all old versions of the Java JRE, and then claims to have successfully installed Java 7 update 51. The Java Control panel works. We can even take Internet Explorer to Verify Java Version or Java Tester - What Version of Java Are You Running? and confirm that the Java applets on those sites are loading (though the latter only works after adding the site to the exceptions site list); however, when testers try to access our Kronos Workforce Central 6.3.10 system, the Java applets used by that system do not load.
We have tried the following things, none of which worked:
Clear Internet Explorer browser cache and cookies.
Clear the local Java cache.
Reboot the computer.
Reset Internet Explorer settings, including personal settings.
The one thing which does work is going into the Java Control Panel, going to the Security tab, unchecking "Enable Java content in the browser", pressing Apply, pressing OK on the pop-up window, checking the "Enable Java content in the browser" box again, pressing OK, pressing OK on the pop-up window, and then restarting Internet Explorer. It is only after this point that all Java applets, including the ones used by Kronos Workforce Central 6.3.10, work.
What I need to know is how I can automate the procedure of reinitializing the "Enable Java content in the browser" checkbox after installation or am I doing something wrong or missing a step in the automated installation that is causing this to happen?
We are using Microsoft SCCM 2007 R3 to accomplish this upgrade, and everything is being run on the client machine using the SYSTEM account. First, the PowerShell script "javaclean.ps1" is run, with part of the command-line process changing the PowerShell script execution policy to Bypass. This script handles the closing of Java-dependent applications and Java processes and uninstalls old Java versions.
javaclean.ps1:
#Find all Java products excluding the auto updater which actually gets uninstalled when the main install is removed.
write-host "Searching for all installed Java versions" -ForegroundColor Yellow
[array]$javas=Get-WmiObject -query "select * from win32_Product where (Name like 'Java %' or Name like 'Java(TM)%' or Name like 'J2SE%') and Name <> 'Java Auto Updater'"
if ($javas.count -gt 0)
    write-host "Java is already Installed" -ForegroundColor Yellow
    #Get all the Java processes and kill them. If java is running and the processes aren't killed then this script will invoke a sudden reboot.
    [array]$processes=Get-Process -Name "Java*" #-erroraction silentlycontinue
    $processes += Get-Process -Name "iexplore" #-erroraction silentlycontinue
    $processes += Get-Process -Name "firefox" #-erroraction silentlycontinue
    $processes += Get-Process -Name "chrome" #-erroraction silentlycontinue
    $processes += Get-Process -Name "jqs" #-erroraction silentlycontinue
    $processes += Get-Process -Name "jusched" #-erroraction silentlycontinue
    $processes += Get-Process -Name "jp2launcher" #-erroraction silentlycontinue
    if ($processes.Count -gt 0)
        foreach ($myprocess in $processes)
            $myprocess.kill()
    #Loop through the installed Java products.
    foreach($java in $javas){
        write-host "Uninstalling "$java.name -ForegroundColor Yellow
        $java.Uninstall()
After this script is complete, SCCM calls a the VBS script "install.vbs" to perform the actual installation of Java JRE 7 update 51.
install.vbs
'* Script: Install JRE 7 routine
'* Date:   3/14/14
'* Author: [REDACTED]
'* Rev:    1.0
'* Notes:
'/// Common
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objWshShell = CreateObject("WScript.Shell")
' Get system architecture
Dim colSys : Set colSys = GetObject("WinMGMTS://").ExecQuery("SELECT AddressWidth FROM Win32_Processor",, 48)
Dim objSys
For Each objSys In colSys
    If objSys.AddressWidth = 64 Then bolIs64Bit = True
Next
' Get operating system
Dim colOS : Set colOS = GetObject("WinMGMTS://").ExecQuery ("Select * from Win32_OperatingSystem",,48)
Dim objOS
For Each objOS In colOS
    If Left(objOS.caption, 20) = "Microsoft Windows 8 " Then
        bolIsWin8 = True
        WScript.Echo "win8"
    End If
    If Left(objOS.caption, 22) = "Microsoft Windows 8.1 " Then
        bolIsWin81 = True
        WScript.Echo "win81"
    End    If
Next
' Set 32 bit program files directory
If bolIs64Bit = True Then
    strPFILES = "Program Files (x86)"
    strSYSDIR = "SysWOW64"
    Else strPFILES = "Program Files"
    strSYSDIR = "System32"
End If
' Set windows directory
strWIN = objWshShell.ExpandEnvironmentStrings("%windir%")
' Set the current directory
strCurrentDir = objFSO.GetParentFolderName(Wscript.ScriptFullName)
' Set computer name
strCompName = objWshShell.ExpandEnvironmentStrings("%computername%")
'/// Main script
    '/// Install via .msi & capture exit code
    'intExitCode = objWshShell.Run("msiexec.exe /i """ & strCurrentDir & "\package.msi""" & " TRANSFORMS=""" & strCurrentDir & _
    '    "\transform.mst"" ALLUSERS=1 Reboot=ReallySuppress /qn", 8, True)
    'wscript.quit(intExitCode)
    '****RUN COMMANDS HERE****
    ' Create folder structure if it doesn't exist already
    strFullPath = "c:\Windows\Sun\Java\Deployment" '
    ' How many levels are there in the path?
    nLevel = 0
    strParentPath = strFullPath
    Do Until strParentPath = ""
        strParentPath = objFSO.GetParentFolderName(strParentPath)
        nLevel = nLevel + 1
    Loop
    For iLevel = 1 To nLevel
        ' Figure out path for directory at level iLevel
        strParentPath = strFullPath
        For j = 1 To nLevel - iLevel
            strParentPath = objFSO.GetParentFolderName(strParentPath)
          Next
    ' Does this directory exist? If not, create it.
        If objFSO.FolderExists(strParentPath) = False Then
            Set newFolder = objFSO.CreateFolder(strParentPath)
        End If
    Next
    ' Kill running processes
    objWshShell.Run "taskkill /F /IM iexplore.exe", 8, True
    objWshShell.Run "taskkill /F /IM firefox.exe", 8, True
    objWshShell.Run "taskkill /F /IM chrome.exe", 8, True
    objWshShell.Run "taskkill /F /IM javaw.exe", 8, True
    objWshShell.Run "taskkill /F /IM java.exe", 8, True
    objWshShell.Run "taskkill /F /IM jqs.exe", 8, True
    objWshShell.Run "taskkill /F /IM jusched.exe", 8, True
    ' Copy deployment files
    objFSO.CopyFile strCurrentDir & "\deployment.config", "c:\Windows\Sun\Java\Deployment\", True
    objFSO.CopyFile strCurrentDir & "\deployment.properties", "c:\Windows\Sun\Java\Deployment\", True
    ' Disable UAC
'    If bolIsWin8 Or bolIsWin81 = True Then
'        objWshShell.Run "reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v PromptOnSecureDesktop /t REG_DWORD /d 0 /f", 8, True
'        objWshShell.Run "reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f", 8, True
'        objWshShell.Run "reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v ConsentPromptBehaviorAdmin /t REG_DWORD /d 0 /f", 8, True
'    End If
    ' Install application
    intExitCode = objWshShell.Run("msiexec.exe /i """ & strCurrentDir & "\jre1.7.0_51.msi"" IEXPLORER=1 AUTOUPDATECHECK=0 JAVAUPDATE=0 JU=0 WEB_JAVA=1 ALLUSERS=1 Reboot=ReallySuppress /qn", 8, True)
    ' Enable UAC
'    If bolIsWin8 Or bolIsWin81 = True Then
'        objWshShell.Run "reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v PromptOnSecureDesktop /t REG_DWORD /d 1 /f", 8, True
'        objWshShell.Run "reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 1 /f", 8, True
'        objWshShell.Run "reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v ConsentPromptBehaviorAdmin /t REG_DWORD /d 5 /f", 8, True
'    End If
    wscript.quit(intExitCode)
    '/// Install via .exe on network
    'objWshShell.Run """" & strCurrentDir & "\Setup.exe"" -s -sms -f1""" & strCurrentDir & _
    '    "\setup.iss"" -f2""" & strWIN & "\Temp\Install-app.txt""", 8, True
    ' Need to turn off the open file security warning first
    Set objEnv = objWshShell.Environment("PROCESS")
    objEnv("SEE_MASK_NOZONECHECKS") = 1
'    intExitCode = objWshShell.Run("""" & strCurrentDir & "\jre-7u45-windows-i586.exe"" /s /v""/norestart " & _
'        "TRANSFORMS=""" & strCurrentDir & "\Tribe-jre7.mst""""", 8, True)
'    WScript.Quit(intExitCode)
    '****RUN COMMANDS HERE****
    ' Then turn it back on
    objEnv.Remove("SEE_MASK_NOZONECHECKS")
'/// Additional functions
Help on this issue would be much appreciated!

It turns out that this is actually a problem with Kronos Workforce Central. We had the "site.java.plugin.CLSID.familyVersion" setting in that application set to "clsid:CAFEEFAC-0016-0000-FFFF-ABCDEFFEDCBA", which is the Java CLSID for Java 6. After updating this value to "clsid:8AD9C840-044E-11D1-B3E9-00805F499D93" (the Java universal CLSID), this problem did not occur upon the automatic upgrade of Java.
We have both Java 6 and Java 7 in our environment, and did during our Kronos implementation, so I don't know why we were using the Java 6 CLSID in the first place.
Case closed!

When using Java Wizard with Firefox 3.6.23 on a Mac OS X 10.6.8 it keep getting an error message: "The Java Wizard cannot run. Please configure your browser to allow Java applets to access the filesystem." Have NO idea how to fix this problem.

When trying to upload files I received the following error: "The Java Wizard cannot run. Please configure your browser to allow Java applets to access the filesystem."

If the problem is with a site that is hosted using MOVEit DMZ by Ipswitch, please notify the site owner of the issue and ask them to apply the patch that is available on the support site to resolve the issue.
This is a better resolution than downgrading your version of Java that was updated due to security issues.

How to put my java applet application inside a browser

currently I have a java applet appilcation but it pops-out outside the browser. does anyone can show me how to embed it on my browser

make an html file like this inside the same folder as your .class files
<html>
<body>
<p align = center><applet code ="Main.class" width=500 height=300>
</applet></p>
</body>
</html>width and height have to be within the resolution of your screen

Java applet won't load on browser

God, I've never been this frustrated with Java before.
Ok, I created an applet in my eclipse IDE and ran it. It works. I decided to create a HTML file so that the applet would display on my firefox browser (my browser has no problem displaying java applets. All settings are fine).
This is my HTML code:
<html>
<title>Site Selector</title>
<body>
   <applet code = "SiteTesting.class" width = "300" height = "75">
   </applet>
</body>
</html>Now, my eclipse IDE creates a "src" or source folder and a bin folder. The bin folder is where the class files are kept. The HTML file was in the src folder. When I ran it, I got this:
load: class SiteTesting.class not found.
java.lang.ClassNotFoundException: SiteTesting.class
     at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Caused by: java.io.FileNotFoundException: F:\Workspace\RefreshalCourse\src\networking\SiteTesting\class.class (The system cannot find the path specified)
     at java.io.FileInputStream.open(Native Method)
     at java.io.FileInputStream.<init>(Unknown Source)
     at java.io.FileInputStream.<init>(Unknown Source)
     at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)
     at sun.net.www.protocol.file.FileURLConnection.getInputStream(Unknown Source)
     at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source)
     at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source)
     at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     ... 9 more
Exception: java.lang.ClassNotFoundException: SiteTesting.classMakes sense, considering the class file isn't in the src folder. So I copied the class files into the src folder, ran the HTML file, and I got this:
java.lang.NoClassDefFoundError: SiteTesting (wrong name: networking/SiteTesting)
     at java.lang.ClassLoader.defineClass1(Native Method)
     at java.lang.ClassLoader.defineClassCond(Unknown Source)
     at java.lang.ClassLoader.defineClass(Unknown Source)
     at java.security.SecureClassLoader.defineClass(Unknown Source)
     at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Exception: java.lang.NoClassDefFoundError: SiteTesting (wrong name: networking/SiteTesting)Huh. I took the html file and placed it in the bin folder where the class file was and I ran it and got the exact same error message above.
I'm obviously doing something wrong. So, any help in fixing this will be most appreciated. Cheers

Your java file starts with:
package networking;Right?
If so, the fully qualified name name of your class is networking.SiteTesting.
Use this in the applet tag:
<applet code = "networking.SiteTesting" width = "300" height = "75">Suppose you have your html file in the directory zzz.
Put SiteTesting.class in zzz/networking/, like this:
zzz/whatever.html
zzz/networking/SiteTesting.class

How to make a java browser to execute java-applets

Hi all!
I' ve recently build (according to examples that I came accross) a java browser that successfully loads HTM, HTML and JSP pages, but it doesn 't load any of my java applets.
What could be wrong? Does anyone have an idea?
Thank you, in advance.
John.

If you like I could personally mail to you my code of java-browser.
John.

On certain web sites(with java applets embedded or rich content),sometimes browser hotkeys are beeing used with other functionality (eg.: youtube uses ctrl + tab for sliding between player controls).How can I prevent this?

On certain web sites(with java applets embedded or rich content),sometimes browser hotkeys are beeing used with other functionality (eg.: youtube uses ctrl + tab for sliding between player controls).How can I prevent this ?

Thanks for posting this!
I would only mention that your definition is incomplete for this -
Contextual selector A type of Style Sheet Selector that
and that it's most often referred to now as a Descendent selector, not a contextual selector. It's basically the same as the Compound selector that you have already defined....

After downloadeding the latest Java plugin, I start to receive "Please configure your browser to allow Java applets to access the filesystem" message when I try to run a download wizard. What do I need to do? BTW, IE does not have this problem.

I had no problem using a download wizard Java applet to download file to my computer from an SFTP site using Firefox. When I tried to do the same thing with Chrome, I was told to download the latest plugin. Once I did that, I receive the following message when I run the downlaod wizard:
The Java Wizard cannot run.
Please configure your browser to allow Java applets to access the filesystem.
I got the same message using Firefox and Chrome. However, I have no problem using IE to run the same download wizzard. Please help.

If the problem is with a site that is hosted using MOVEit DMZ by Ipswitch, please notify the site owner of the issue and ask them to apply the patch that is available on the support site to resolve the issue.
This is a better resolution than downgrading your version of Java that was updated due to security issues.

BROWSER HANGING WITH LOADING JAVA APPLET

HI
WHEN I RUN THE FORM ON THE EXTERNAL
BROWSER.(USING OPTION RUN A FORM ON THE WEB).
FILLING IN ALL THE DETAILS.
BROWSER HANGS WITH MESSAGE LOADING JAVA APPLET.
TEST.FMX IS IN THE FORMS60 PATH.
I NEED HELP THANKS
DEEPAK.
null

Try using the java console to get more info on what is hapenning.
If you have using Jinitator its on the jinitator control panel.

Regarding a browser running in a Java applet

Hi,
I'm pretty new to Java so please, bare with me.
Would it be possible to run a fully functional Firefox (or other browser) instance in a Java applet, provided the server is a Fedora box with virtual frame buffer?
If yes, what would happen if I download a file, where would the file be downloaded? The user (me) or the server the applet is hosted on?
Thanks in advance for your thoughts!

Thanks Chuck!
I'm just trying to create for myself a tool which is able to act like a browser. I'm using currently a headless user on an X, then exporting the X window to an image.
I was thinking to effectively bound the virtual frame buffer to an applet. Say, the vfb is running on display :11 and to bring that display to the applet, in live. Applet because I can't think of any other thing which would be able to do it.
So you think this would not be possible?

Java applet freeze completly browser

Hi there
Ive created a smalle board game in an ASP / Javascript page. The game is multiplayer and i connect everybody via an java applet to a java server.
Well, it look like this :
ASP / Javascript --> Applet --> JavaServer --> Applet --> ASP / javascript
The game is just fine and completly functionnal. The problem is : We just brought in some video for the players who have Webcams. And those video freeze when the applet is waiting a response from the server. Is there anyway that the applet does not freeze the whole browser so that the video continu playing even if the game is waiting?
the main window contain 2 sections, �video & chat� and the game. The game containt a few frames with one of them containing the applet. In the java applet, im using BufferedReader and PrintWriter with AppletSocket to communicate with the server.
Im not sure if i have made myself clear, if not, tell me, ill try to make it clearer.
Thanks in advance
Marc
P.S. sorry for my english

There maybe some code will help most of you to understand better my problem.
Here's the function in my asp pages that wait for the applet response.
function AttendreReponse()
     AppletConnect.Recevoir();
     GererRecevoir();
}The javascript function 'GererRecevoir()' get the code that was sent by the server, analyse it and then, do run the proper function so the game can go on normally..
And here's the java function 'Recevoir()' in the applet
public void Recevoir()
// String received from the server
String fromServer = "";
this.paramTransaction = "";
this.codeTransaction ="";
try{
    // Reads the string received
    fromServer = this.in.readLine();
    if(fromServer != null)
      this.codeTransaction = fromServer.substring(0,2);
      if(fromServer.length() > 2){
        this.paramTransaction = fromServer.substring(2); //retrieve the 2 next ^^
// Applet dosent receive anything anymore from the server
catch (IOException e){
    System.out.println("Le serveur n'est plus en fonction");
    System.exit(1);
}So the main problem is that the applet freeze the whole window then ge gets to : fromServer = this.in.readLine();
He wait until he get a response or untill he timeout.
What I would like, is that the applet does not freeze the whole window while waiting since videoconference, chatting and sound arent very usefull if you can use them 3/4 of the time.
I hope this helped you to understand a little bit more.
Thanks again
Marc

Java applet in browser

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