Executing an applet

I want to execute an applet as depicted within this
<APPLET tag. The class is located in the same directory as this html file. yet when I click oin the html it brings up IE but indicated that this class is not found.
What am I doing wrong?
<APPLET
CODEBASE = "."
CODE = "DatesApplet.class"
NAME = "List - Intervening Dates"
WIDTH = 400
HEIGHT = 300
HSPACE = 0
VSPACE = 0
ALIGN = middle
>

Here is an example of a html file used for a applet.
<html>
<HEAD>
<TITLE>YOUR TITLE</TITLE>
</HEAD>
<BODY BGCOLOR=WHITE>
<APPLET CODE="YOURAPPLETNAME.class"
HEIGHT="300" WIDTH="500"
>
</APPLET>
</BODY>
</html>
Also might try to use appletviewer in your compiler. Works better then IE.

Similar Messages

Need help in executing EEM applet only once

Do we have any sample script for EEM applet counter ? We want applet to execute once after reload after matching a string . We tried couple of solutions like “ server suspend “( customer does not like server suspend) and event counter ( this does not allow syslog string matching ). Please let me know if there are any options.
At the router reload, match the string , bring down the interface and run this applet only once . I have been trying multiple messages in Bootup log for this for bringing the interface down.
The issue we are facing is that most of the bootup log messages can be triggered when the router is up as well which will result in triggering of the applet which is what we want to avoid.
event manager applet Interface_down
event syslog pattern "SPA removed from subslot 0/0"
trigger delay 10
action 1.0 cli command "enable"
action 1.5 cli command "config t"
action 2.0 cli command "interface gi0/0/0"
action 2.5 cli command "shutdown"
action 3.0 cli command "end"
event manager applet Interface_up
event syslog pattern "Bulk Sync succeeded"
trigger delay 100
action 1.0 cli command "enable"
action 1.5 cli command "config t"
action 2.0 cli command "interface gi0/0/0"
action 2.5 cli command "no shutdown"
action 3.0 cli command "end"
end

This is a bit dirty but you can create an applet to run at startup that creates the event detection applet. Then at the end of the detection applet, have it remove itself from the running config. This means that the applet running at startup will always create the event detection applet but the event detection applet will only ever run once for that router boot period as it deletes itself after first run.
The problem is that when you want to have one applet create another applet, you have issues with the inverted commas being correctly configured for the second applet which will cause it to run once, but fail after that. The way you can get around this is to write the applet to a text file on the flash and then copy the contents of the text file to the running config at boot. This preserves the structure of the applet being created and ensures that it will function correctly.
The following example builds the event detection applet at system restart (BUILDAPPLET) by copying the file "eventapplet.txt" to running config. The event detection applet (EVENTDETECT) detects a syslog pattern, in this case exiting global config, and runs the applet sending a puts command and outputting HELLO. The event detection applet then removes itself from the running config.
!# configure the router
conf t
!# turn off file prompting to let the BUILDAPPLET run when copying
file prompt quiet
!# create the applet that runs at system restart and copies the flash applet to the running config
event manager applet BUILDAPPLET
event syslog pattern "%SYS-5-RESTART"
action 10 cli command "en"
action 11 cli command "copy flash:eventapplet.txt running-config"
!# exit
end
!######## Create the flash file containing your run once applet ########
! enter the tclsh so we can write our applet to a file - put your event detection applet in here between the {} that you want to run once
tclsh
puts [open "flash:eventapplet.txt" w+] {
event manager applet EVENTDETECT
event syslog pattern "%SYS-5-CONFIG_I"
action 1.0 puts "HELLO"
action 2.0 cli command "en"
action 3.0 cli command "conf t"
action 4.0 cli command "no event manager applet EVENTDETECT"

How to execute an applet after a button was clicked in an html page?

the title says it all..
I have an applet, and I want it to run only after I click a button, anyone knows how to do that?

here is htmlpage
www.somepage.com/index.html
index.html has a button the hrefs to /yourapplet.html page
www.sompage.com/appletPage.html

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.

Unable to execute and applet

I'm new programmer in java. There are somme applet that run with appletwier
but witch do not run with Internet explorer and Netscape. I'm always getting
this error : 'Class not found'. I want to know all the steps to run and applet
using Netscape or Internet explorer.
I'm french speaking. Sorry if my english is poor.
Thank's for your answers.

I think you can't solve your problem.
The fact is that appletviewer supports the java classes you have installed with the sun's jdk... if you are using jdk 1.3.1, it uses the java libraries included in your installed distribution. IE virtual machine, instead, uses its own library, so you can't use in your applets classes like: swing, graphics2d, and so on...
I know that it's not a great help. Sorry!
However, if someone could tell us how to include these classes in our CABs/JARs... i think we are really happy! :-)
Ciao,
Paolo.

Enable policy to execute permissions applet

Hi,
I Creating an applet where this i create an object of a class that is in a jar in my directory lib / ext of java. As make to release all file permissions on my policy so that I can run my application, because now I am not able, is showing the following error:
java.security.AccessControlException: access denied (java.util.PropertyPermission java.home 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 org.jivesoftware.smack.ConnectionConfiguration.init (ConnectionConfiguration.java: 121)
At org.jivesoftware.smack.ConnectionConfiguration. <init> (ConnectionConfiguration.java: 111)
At com.supridatta.jabber.user.FramePrincipal.recebeConnect (FramePrincipal.java: 250)
Thanks for all the answers!
Thanks.
Edited by: Vilson on Jan 18, 2008 7:58 PM

Hi,
I Creating an applet where this i create an object of a class that is in a jar in my directory lib / ext of java. As make to release all file permissions on my policy so that I can run my application, because now I am not able, is showing the following error:
java.security.AccessControlException: access denied (java.util.PropertyPermission java.home 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 org.jivesoftware.smack.ConnectionConfiguration.init (ConnectionConfiguration.java: 121)
At org.jivesoftware.smack.ConnectionConfiguration. <init> (ConnectionConfiguration.java: 111)
At com.supridatta.jabber.user.FramePrincipal.recebeConnect (FramePrincipal.java: 250)
Thanks for all the answers!
Thanks.
Edited by: Vilson on Jan 18, 2008 7:58 PM

Signed applet don't work on XP

Hi,
I'am currently working on a point-of-sale (POS) using windows XP/Firefox and a linux apache/jboss server.
I have developed a dynamic windows library in order to use an industrial printer connected to the POS to perform some printing without confirmation of the customer.
The POS is under Windows XP SP2 and use Firefox 2.0.0.11/JRE 1.5.0.14.
This dll is used by a signed applet located on the apache/jboss server.
The applet is correctly downloaded by the client, but normally i have to wait for the certicat authentification windows appearing and for confirming that i want execute the applet. And instead i have a java exception :
security: La v�rification du certificat � l'aide des certificats AC racine a �chou�
security: Aucune information d'horodatage disponible
java.lang.NullPointerException
     at com.sun.deploy.ui.UIFactory.showSecurityDialog(Unknown Source)
     at com.sun.deploy.security.TrustDeciderDialog.showDialog(Unknown Source)
     at com.sun.deploy.security.TrustDecider.isAllPermissionGranted(Unknown Source)
     at com.sun.deploy.security.TrustDecider.isAllPermissionGranted(Unknown Source)
     at sun.plugin.security.PluginClassLoader.getPermissions(Unknown Source)
     at java.security.SecureClassLoader.getProtectionDomain(Unknown Source)
     at java.security.SecureClassLoader.defineClass(Unknown Source)
     at java.net.URLClassLoader.defineClass(Unknown Source)
     at java.net.URLClassLoader.access$100(Unknown Source)
     at java.net.URLClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findClass(Unknown Source)
     at sun.applet.AppletClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.applet.AppletClassLoader.loadCode(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
security: L'utilisateur a refus� les droits d'acc�s au code
basic: Taille de cache du chargeur de classes courant : 1
basic: Termin�...
basic: Jonction du thread d'applet...
basic: Destruction de l'applet...
basic: Elimination de l'applet...
basic: Sortie de l'applet...
java.lang.ExceptionInInitializerError
     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
     at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
     at java.lang.reflect.Constructor.newInstance(Unknown Source)
     at java.lang.Class.newInstance0(Unknown Source)
     at java.lang.Class.newInstance(Unknown Source)
     at sun.applet.AppletPanel.createApplet(Unknown Source)
     at sun.plugin.AppletViewer.createApplet(Unknown Source)
     at sun.applet.AppletPanel.runLoader(Unknown Source)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Caused by: java.security.AccessControlException: access denied (java.lang.RuntimePermission loadLibrary.C:\Program Files\BICImpression\impression_api.dll)
     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.checkLink(Unknown Source)
     at java.lang.Runtime.load0(Unknown Source)
     at java.lang.System.load(Unknown Source)
     at applets.impression.Impression.<clinit>(Impression.java:38)
     ... 11 moreand then the certicat authentification windows appears but it's too late, the applet won't never execute ...
the apache/jboss server is accessed via some gateway, firewal, ... tha t i can't control
the apache jboss/server on my own PC is accessed directly :
What is amazing, is that work fine with my own professionnal PC on W2000 SP4, with JRE1.5.0.14 and Firefox 2.0.0.11 :
when I look in the java console, the java freeze until i have answered this java security window (certicat authentification windows). And when i answered "run" no problem the applet makes her own job.
here is the code when it works :
security: La v�rification du certificat � l'aide des certificats AC racine a �chou�
security: Aucune information d'horodatage disponible
basic: Plugin modality.pushed
basic: Modalit� empil�e
basic: push javax.swing.JDialog[dialog0,379,296,519x323,layout=java.awt.BorderLayout,modal,title=Avertissement - S�curit�,defaultCloseOperation=HIDE_ON_CLOSE,rootPane=javax.swing.JRootPane[,3,22,513x298,layout=javax.swing.JRootPane$RootLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
basic: Chargement arr�t�...
basic: Arr�t de l'applet...Conclusion
POS : Win XP SP2, JRE1.5.0.14 (i tried 1.5.0.6 and 1.6.3 the latest), Firefox 2.0.0.11 (I tried 2.0.0.0 and 3 beta2 don't work anyway)
my own server/client : W2000 SP4, JRE1.5.0.14, Firefox 2.0.0.11
Linux server : RHEL4
It works with IE on the POS with the linux sever but it's not the selected browser.
It works with IE on the POS with my own server.
It works with Firefox on the POS with my own server.
It works with IE on my own server with the linux sever but it's not the selected browser.
It works with IE on my own server with my own server.
It works with Firefox on my own server with the linux sever.
It works with Firefox on my own server with my own server.
If you have some idea to make it work i'm you're buyer !!
Thank a lot for reading this, and i apologize for my poor english ...
greetings,
Benoit
Edited by: bendur on Feb 29, 2008 3:49 AM

Ok I have found my problem :
On every web pages, we have defined some inactivity timeouts.
On my own server I have disabled these timeouts but not on the distant timeout.
And it seems that the timeout (defined in javascript ont he web pages : 3s) has a very bad influence on the launching of my applet ... only with firefox (with IE and Opera no problem)
My problem is anwsered but the problem keep alive for firefox ...

Call applet method with javascript

my html - code:
<APPLET NAME="Mail" ... ... ></APPLET>
<form action="javascript:document.applets("Mail").test("Execute JAVA Applet Function")">
<input type="submit" value="Execute Applet Function">
</form>
my applet code:
public void test(String t)
{System.out.println("executing test()");
teststr = t;
repaint();
in the paint() method i draw the teststr with Graphics.drawString - but nothing happens...
any suggestions?
thx

Directly calling a Java Applet's public method from within
JavaScript is made possible by LiveConnect which is not implemented by Internet Explorer as of yet. LiveConnect is only available on Netscape navigator at this time.

Applet embedded in JSP doesn't run on browser with older than JRE-1.6

I have embeded an Applet in my JSP Page which used JDK1.6's getHardwareAddress() method to get user's physical address.
I have embeeded this into a JAR file and used it in my JSP where this applet run on onload() event of the form --> runs the applet --> and gets physical address of user machine and prints it in one of the text boxes on the form.
Now, the issue is that the applet doesn't run on browser that doesn't support JRE 1.6
My concern is that how can I run this (if at all possible) in browsers that support lower versions of JRE or is it possible to check that if the browser doesn't support JRE 1.6 then load the basic version of form without running the applet. Can i actually check the version of browser JRE somehow and stop to execute the applet. Because what happens as of now is that if the applet doesn't execute, the complete form fails to load.
The last option is that I give a message on my web page that redirects user to Sun Java site and asks them to update their browsers.

Personally, I have no knowledge about Applet but have you checked this link?
[http://blogs.sun.com/thejavatutorials/entry/deployment_toolkit_101|http://blogs.sun.com/thejavatutorials/entry/deployment_toolkit_101]

Can a applet be SELECTED during its installing?

In the chapter 11.2 of <The Java Card 2.2 Runtime Environment (JCRE) Specification>, it depicts that
" The Installer shall ensure that during the execution of the install() method, the
new applet (not the Installer) is the currently selected applet. In addition, any
CLEAR_ON_DESELECT objects created during the install() method shall be
associated with the selection context of the new applet."
I am confused that whether a applet can be selected while it is being installed?
And the following paragraph cocludes that "The installation of an applet is deemed complete if all steps are completed without failure or an exception being thrown, up to and including successful return from
executing the Applet.register method. At that point, the installed applet will be selectable." It seems the latter depiction conflicts with the former.
Who can give me a help?
Thanks!

The JCRE has to call your static install() method in order for you to be able to call register(). That register() is what informs the JCRE to add your applet to the JCRE table. In order to call your install(), the JCRE has to make your applet the default selected applet .
If you violate something or throw an exception during the processing of the install(), the applet won't be installed, neither will it be in the JCRE table, therefore not selectable because it doesn't exist.
To try it, just throw an ISOException in your install() and see what happens. Then try calling an algorithm that's not implemented like AES and see what happens.

Applet started in a seperate JSP

Hi all,
Can anyone help me out of this problem...
I have 2 JSP files. say 1.jsp and 2.jsp.
In 1.jsp I initiate an applet using the <jsp:plugin> tag and doesnt want to start the applet running there... so what I do is I suspend the applet untill my 2.jsp is executed. When my 2.jsp is opened, then my applet should start running... how do I do this??? Please let me know this at the earliest... my applet is hanging around like an orphan...
thanx in advance..
Balu.

oops.. forgot one point here... I am using frames n these 2 paes are in the main frame n I try to execute the applet in the header frame which is above and common to the main frame.. irrespective of the pages in his frame.
thanx,
balu

Applet in local machine

What is the process in the browser when executing the applet over the internet? When it's downloaded from the internet, is it saved to the local machine like in temp directory?
When I use the same applet, I realized that it downloads the applet only if the applet's updated. If it's not updated, my browser does not download it again. But I can't find the applet on my local machine.
Any idea?

It's buried somewhere on your hard drive - probably under your browser's root directory. Your browser may well have renamed it, though.... ain't no tellin'!
Yours,
Tom

ERROR in my applet program

When I execute my applet, it gives me this error:
Exception in thread "main" java.lang.NoSuchMethodError: main
However when it runs in the appletviewer fine. Heres the code:
import java.applet.Applet;
import java.awt.*;
import javax.swing.*;
public class slideshow extends Applet implements Runnable
        //creates the main thread
     Thread mainthread=null;
     //the amount of sleep time for the thread
     int time=2000; //milliseconds
        int x=1;
        int numberofimages=5; //this variable is needed since the paint function will know how many
        private Image bgimage1;
        private Image bgimage2;
        private Image bgimage3;
        private Image bgimage4;
        private Image bgimage5;
        String parameter;
     public void init()
                parameter = getParameter("totalimages");
                int numimages = (parameter==null? 0:Integer.parseInt(parameter));
                numberofimages=numimages;//setting the global to this value
                String imagename = getParameter( "name" );
                String imagename2 = getParameter( "name2" );
                String imagename3 = getParameter( "name3" );
                String imagename4 = getParameter( "name4" );
                String imagename5 = getParameter( "name5" );
                bgimage1=getImage(getDocumentBase(), imagename);
                bgimage2=getImage(getDocumentBase(), imagename2);
                bgimage3=getImage(getDocumentBase(), imagename3);
                bgimage4=getImage(getDocumentBase(), imagename4);
                bgimage5=getImage(getDocumentBase(), imagename5);
          //constructs the thread
          mainthread=new Thread(this);
          //starts the thread
          mainthread.start();
    public void run(){
          while(mainthread!=null)
                {try{
              //makes the thread sleep
              mainthread.sleep(time);
          catch(Exception e){}
          //repaints the applet
          repaint();
    public void stop()
          if(mainthread!=null){mainthread.stop();}
    public void paint(Graphics g)
            if (x==1)
               g.drawImage(bgimage1,0,0,getWidth(),getHeight(),this);
               //draws image the full size of the applet
            if (x==2)
               g.drawImage(bgimage2,0,0,getWidth(),getHeight(),this);
            if (x==3)
               g.drawImage(bgimage3,0,0,getWidth(),getHeight(),this);
            if (x==4)
               g.drawImage(bgimage4,0,0,getWidth(),getHeight(),this);
            if (x==5)
               g.drawImage(bgimage5,0,0,getWidth(),getHeight(),this);
            x++;
            if (x>numberofimages)
               x=1;
//end
}

When you say "execute" do you mean you are trying to launch your Applet as an application like:
java slideshow
That won't work because your code is only an Applet. When you invoke a class with the java.exe command, you need a main method and your code doesn't have one. You'll also need to explicitly call init() and run(), and you'll need to provide a Frame to hold your Applet.

Error in applet

hi,
i got the following error when m trying to execute my applet.
plz any on can give me suggetion to slove this prob.....
Exception in thread "main" java.util.MissingResourceException: Can't find resour
ce for bundle sun.applet.resources.MsgAppletViewer, key appletpanel.badattribute
.exception
at java.util.ResourceBundle.getObject(ResourceBundle.java:325)
at java.util.ResourceBundle.getString(ResourceBundle.java:285)
at sun.applet.AppletMessageHandler.getMessage(AppletMessageHandler.java:
39)
at sun.applet.AppletPanel.showAppletStatus(AppletPanel.java:866)
at sun.applet.AppletPanel.init(AppletPanel.java:197)
at sun.applet.AppletViewer.<init>(AppletViewer.java:177)
at sun.applet.StdAppletViewerFactory.createAppletViewer(AppletViewer.jav
a:82)
at sun.applet.AppletViewer.parse(AppletViewer.java:1122)
at sun.applet.AppletViewer.parse(AppletViewer.java:1056)
at sun.applet.Main.run(Main.java:138)
at sun.applet.Main.main(Main.java:80)

I am not sure about missing resource(might be a corrupt installation) but i think this is happening becuase it is complaning about the width or height of the applet tag. Please make sure they are correct or post them here...

Applets with databases

I have a problem with an application done with applets in Java that is connected to a data base in Oracle, the problem is that when I execute the applet in a navigator to not it gives back the consultations me that assume must make…. as I solve this?
Please help me....

Claudia,
your aren't to speficic about what kind of error occurs. Do you simply get nothing in return, hangs the request, or is the request aborted with an exception?
If you use the Java Plugin (part of Sun's Java JDK), you can open the Java console and watch, whether you get an exception or not.
Which Oracle driver do you use (thin or OCI) ? And which version do you use ? Does the request work well in an application (i.e. not runing in an applet context) ?
Is the database server located on the same machine as the web server, from which you download your applet ?
Best,
Manfred

Executing an applet

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