Make IE ready to run the applet in ubuntu machine
Dear friends,
I want to check JMF installation using diagnostic code in IE6/IE7 on ubuntu.
I have downloded these browsers. When I was checking the JMF installation, using this below URL,
http://ku-prism.org/virtualprism/explorations/JavaTest/javatestpage.html
Applet wasn't run, and it hasn't display the any messages ( success/Failure) inside the applet window.
Can any one tel me that, How can I run the applet in IE6/IE7 on ubuntu ?
Note:
When I was checking this to windows xp ( IE) , it says below nmessages,
For JRE => jre Version... 1.5.0_10
For JMF => JMF Version... 2.1.1e
All Java Build
Native Libraries found success.
Thank you,
As an Applet does not have a method main, then obviously you need to convert it to an application, which does.
Similar Messages
-
HOw to run the Applet in dos mode
how to run the applet in Command Prompt(DOS).
I have save this in directory D/vijay/javap/A.java and my JDK is in C drive.
Plz send me reply as soon as possible.
My code is :-
import java.applet.*;
import java.awt.*;
public class A extends Applet
private int w, h;
public void init( )
w = 45;
h = 50;
public void paint(Graphics g)
g.drawRect(w, h, 20, 80);
}import java.applet.*;
import java.awt.*;
public class A extends Applet
private int w, h;
public void init( )
w = 45;
h = 50;
public void paint(Graphics g)
g.drawRect(w, h, 20, 80);
<applet class="A" height="200" width="200" code="A.class">
</applet>
*/And in command prompt
javac A.java
appletviewer A.java
Message was edited by:
passion_for_java -
hi,
im trying to run an applet from JSP i am not able to see the output of the applet on the JSP page?
<APPLET CODE="com.metro.supex.admin.SampleApplet.class" HEIGHT="25" WIDTH="125" ALIGN="bottom"></APPLET>
this line of code is included in JSP to run the applet, it is giving error
java.lang.ClassNotFoundException:com.metro.supex.admin SampleApplet
please can you help me in this matter.And don't use the applet tag, use object embed.
use the htmlconverter in the jdk bin dir to convert an applet tag. -
Why can't I run the applet in jdev2.0?
sir:
After I installed the jdev2.0 beta,I create a applet through
wizard,but when I run the applet ,I always occured such error:
"createprocess failed for appletviewer windows nt error #5" ,and
I run the applet in the IE4.0,get the other error:"applet can't
instantialed",why ,please help me!
nullThis problem has already been encountered by others.
So, I will simply paste the answer.
Windows NT error #5 is ERROR_ACCESS_DENIED. I'd suggest you look
at who ownership and protection of the exes and dlls in your
installation of jdeveloper.
You saved my life!
I have no idea, what happened with my NT setup, I did a normal
setup, there is only one user for the NT, with admin rights.
Anyhow, I'm not an NT expert and it seemed to be quite
difficult to find the offending files with wrong permissions.
So I took the lazy solution, selected JDev home directory and
changed the permission of all files and all subdirectories to
"full control for Everyone". That cured the error.gang lee (guest) wrote:
: sir:
: After I installed the jdev2.0 beta,I create a applet through
: wizard,but when I run the applet ,I always occured such error:
: "createprocess failed for appletviewer windows nt error #5"
,and
: I run the applet in the IE4.0,get the other error:"applet can't
: instantialed",why ,please help me!
null -
Hi,
I have an simple applet . I have created the jar file for the applet using the jar utility.
1. I would Like to make my applet run simply by double clicking of the jar file.
2. I have included in the manifest file manifest.inf the main-class file.
3. When I double click I get the message failed to load the main-class
Can anyone help
G.ThirukumaranAs an Applet does not have a method main, then obviously you need to convert it to an application, which does.
-
Chat Applet using RMI .... trouble running the Applet using the IE browser.
Hi,
I'm trying to run a chat application using RMI technology. Actually, this wasn't created from the scratch. I got this one from from the cd that comes with the book I bought and I did some refinements on it to suit what I wanted to:
These are the components of the chat application:
1. RApplet.html - invokes the applet
html>
<head>
<title>Sample Applet Using Dialog Box (1.0.2) - example 1</title>
</head>
<body>
<h1>The Sample Applet</h1>
<applet code="RApplet.class" width=460 height=160>
</applet>
</body>
</html>
2. RApplet.java - Chat session client applet.
import java.rmi.*;
import java.applet.*;
import java.awt.event.*;
import java.awt.*;
import java.io.*;
import java.rmi.server.*;
//import ajp.rmi.*;
public class RApplet extends Applet implements ActionListener {
// The buttons
Button sendButton;
Button quitButton;
Button startButton;
Button clearButton;
// The Text fields
TextField nameField;
TextArea typeArea;
// The dialog for entering your name
Dialog nameDialog;
// The name the server knows us as
String privateName;
// The name we want to be known as in the chat session
String publicName;
// The remote chats erver
ChatServer chatServer;
// The ChatCallback
ChatCallbackImplementation cCallback;
// The main Chat window and its panels
Frame mainFrame;
Panel center;
Panel south;
public void init() {
// Create class that implements ChatCallback.
cCallback = new ChatCallbackImplementation();
// Create the main Chat frame.
mainFrame = new Frame("Chat Server on : " +
getCodeBase().getHost());
mainFrame.setSize(new Dimension(600, 600));
cCallback.displayArea = new TextArea();
cCallback.displayArea.setEditable(false);
typeArea = new TextArea();
sendButton = new Button("Send");
quitButton = new Button("Quit");
clearButton = new Button("Clear");
// Add the applet as a listener to the button events.
clearButton.addActionListener(this);
sendButton.addActionListener(this);
quitButton.addActionListener(this);
center = new Panel();
center.setLayout(new GridLayout(2, 1));
center.add(cCallback.displayArea);
center.add(typeArea);
south = new Panel();
south.setLayout(new GridLayout(1, 3));
south.add(sendButton);
south.add(quitButton);
south.add(clearButton);
mainFrame.add("Center", center);
mainFrame.add("South", south);
center.setEnabled(false);
south.setEnabled(false);
mainFrame.show();
// Create the login dialog.
nameDialog = new Dialog(mainFrame, "Enter Name to Logon: ");
startButton = new Button("Logon");
startButton.addActionListener(this);
nameField = new TextField();
nameDialog.add("Center", nameField);
nameDialog.add("South", startButton);
try {
// Export ourselves as a ChatCallback to the server.
UnicastRemoteObject.exportObject(cCallback);
// Get the remote handle to the server.
chatServer = (ChatServer)Naming.lookup("//" + "WW7203052W2K" +
"/ChatServer");
catch(Exception e) {
e.printStackTrace();
nameDialog.setSize(new Dimension(200, 200));
nameDialog.show();
* Handle the button events.
public void actionPerformed(ActionEvent e) {
if (e.getSource().equals(startButton)) {
try {
nameDialog.setVisible(false);;
publicName = nameField.getText();
privateName = chatServer.register(cCallback, publicName);
center.setEnabled(true);
south.setEnabled(true);
cCallback.displayArea.setText("Connected to chat server as: " +
publicName);
chatServer.sendMessage(privateName, publicName +
" just connected to server");
catch(Exception ex) {
ex.printStackTrace();
else if (e.getSource().equals(quitButton)) {
try {
cCallback.displayArea.setText("");
typeArea.setText("");
center.setEnabled(false);
south.setEnabled(false);
chatServer.unregister(privateName);
nameDialog.show();
catch(Exception ex) {
ex.printStackTrace();
else if (e.getSource().equals(sendButton)) {
try{
chatServer.sendMessage(privateName, typeArea.getText());
typeArea.setText("");
catch(Exception ex) {
ex.printStackTrace();
else if (e.getSource().equals(clearButton)) {
cCallback.displayArea.setText("");
public void destroy() {
try {
super.destroy();
mainFrame.setVisible(false);;
mainFrame.dispose();
chatServer.unregister(privateName);
catch(Exception e) {
e.printStackTrace();
3. Chatcallback.java - interface used by clients to connect to the server.
import java.rmi.*;
public interface ChatCallback extends Remote {
public void addMessage(String publicName,
String message) throws RemoteException;
4. ChatcallbackImplementation.java - implements Chatcallback interface.
import java.rmi.*;
import java.io.*;
import java.awt.event.*;
import java.awt.*;
public class ChatCallbackImplementation implements ChatCallback {
// The buttons
// The Text fields
TextArea displayArea;
public void addMessage(String publicName,
String message) throws RemoteException {
displayArea.append("\n" + "[" + publicName + "]: " + message);
5. Chatserver.java - interface for the chat server.
import java.rmi.*;
import java.io.*;
public interface ChatServer extends Remote {
public String register(ChatCallback object,
String publicName) throws RemoteException;
* Remove the client associated with the specified registration string.
* @param registeredString the string returned to the client upon registration.
public void unregister(String registeredString) throws RemoteException;
* The client is sending new data to the server.
* @param assignedName the string returned to the client upon registration.
* @param data the chat data.
public void sendMessage(String registeredString, String message) throws RemoteException;
6. ChatServerImplementation.java - implements Chatserver interface.
import java.rmi.*;
import java.util.*;
import java.rmi.server.*;
import java.io.*;
* A class that bundles the ChatCallback reference with a public name used
* by the client.
class ChatClient {
private ChatCallback callback;
private String publicName;
ChatClient(ChatCallback cbk, String name) {
callback = cbk;
publicName = name;
// returns the name.
String getName() {
return publicName;
// returns a reference to the callback object.
ChatCallback getCallback() {
return callback;
public class ChatServerImplementation extends UnicastRemoteObject
implements ChatServer {
// The table of clients connected to the server.
Hashtable clients;
// Tne number of current connections to the server.
private int currentConnections;
// The maximum number of connections to the server.
private int maxConnections;
// The output stream to write messages to.
PrintWriter writer;
* Create a ChatServer.
* @param maxConnections the total number if connections allowed.
public ChatServerImplementation(int maxConnections) throws RemoteException {
clients = new Hashtable(maxConnections);
this.maxConnections = maxConnections;
* Increment the counter keeping track of the number of connections.
synchronized boolean incrementConnections() {
boolean ret = false;
if (currentConnections < maxConnections) {
currentConnections++;
ret = true;
return ret;
* Decrement the counter keeping track of the number of connections.
synchronized void decrementConnections() {
if (currentConnections > 0) {
currentConnections--;
* Register with the ChatServer, with a String that publicly identifies
* the chat client. A String that acts as a "magic cookie" is returned
* and is sent by the client on future remote method calls as a way of
* authenticating the client request.
* @param object The ChatCallback object to be used for updates.
* @param publicName The String the object would like to be known as.
* @return The actual String assigned to the object for removing, etc. or
* null if the client could not register.
public synchronized String register(ChatCallback object, String publicString) throws RemoteException {
String assignedName = null;
if (incrementConnections()) {
ChatClient client = new ChatClient(object, publicString);
assignedName = "" + client.hashCode();
clients.put(assignedName, client);
out("Added callback for: " + client.getName());
return assignedName;
* Remove the client associated with the specified registration string.
* @param registeredString the string returned to the client upon registration.
public synchronized void unregister(String registeredString) throws RemoteException {
ChatCallback cbk;
ChatClient sender;
if (clients.containsKey(registeredString)) {
ChatClient c = (ChatClient)clients.remove(registeredString);
decrementConnections();
out("Removed callback for: " + c.getName());
for (Enumeration e = clients.elements(); e.hasMoreElements(); ) {
cbk = ((ChatClient)e.nextElement()).getCallback();
cbk.addMessage("ChatServer",
c.getName() + " has left the building...");
else {
out("Illegal attempt at removing callback (" + registeredString + ")");
* Sets the logging stream.
* @param out the stream to log messages to.
protected void setLogStream(Writer out) throws RemoteException {
writer = new PrintWriter(out);
* The client is sending new message to the server.
* @param assignedName the string returned to the client upon registration.
* @param data the chat data.
public synchronized void sendMessage(String registeredString, String message) throws RemoteException {
ChatCallback cbk;
ChatClient sender;
try {
out("Recieved from " + registeredString);
out("Message: " + message);
if (clients.containsKey(registeredString)) {
sender = (ChatClient)clients.get(registeredString);
for (Enumeration e = clients.elements(); e.hasMoreElements(); ) {
cbk = ((ChatClient)e.nextElement()).getCallback();
cbk.addMessage(sender.getName(), message);
else {
out("Client " + registeredString+ " not registered");
catch(Exception ex){
out("Exception thrown in newData: " + ex);
ex.printStackTrace(writer);
writer.flush();
* Write s string to the current logging stream.
* @param message the string to log.
protected void out(String message){
if(writer != null){
writer.println(message);
writer.flush();
* Start up the Chat server.
public static void main(String args[]) throws Exception {
try {
// Create the security manager
System.setSecurityManager(new RMISecurityManager());
// Instantiate a server
ChatServerImplementation c = new ChatServerImplementation(10);
// Set the output stream of the server to System.out
c.setLogStream(new OutputStreamWriter(System.out));
// Bind the server's name in the registry
Naming.rebind("//" + args[0] + "/ChatServer", c);
c.out("Bound in registry.");
catch (Exception e) {
System.out.println("ChatServerImplementation error:" +
e.getMessage());
e.printStackTrace();
Using my own machine (connected to a network), I tried to test this one out by setting mine as the server and also the client. I did the following:
1. Compile the source code.
2. Use rmic to generate the skeletons and/or stubs from the ChatCallbackImplementation and ChatServerImplementation.
3. Start the rmiregistry with no CLASSPATH
4. Start the server successfully.
5. Start the applet using the AppletViewer command.
It worked fined.
The problem is when I ran the applet using the browser, IE explorer, the dialog boxes, frame and buttons did appear. I was able to do the part of logging on. But after that, the applet seemed to have hang. No message appeared that says I'm connected (which appeared using the appletviewer). I clicked the send button. No response.
I double-checked my classpath. I did have my classpath set correctly. I'm still trying to figure out the problem. Up to now, I don't have any clue what it is.
I will appreciate much if someone can help me figure what's could have possibly been wrong ....
Thanks a lot ...Hi Domingo,
I had a similar problem running applet/rmi with IE.
Looking in IE..view..JavaConsole error messages my applet was unable to find java.rmi.* classes.
I checked over java classes in msJVM, they're not present.
( WinZip C:\WINDOWS\JAVA\Packages\9rl3f9ft.zip and others from msVM installed )
( do not contain the java.rmi.* packages )
I have downloaded and installed the latest msJVM for IE5. ( I think its included in later versions)
@http://www.objectweb.org/rmijdbc/RJfaq.html I found ref to rmi.zip download to provide
these classes. I couldn't get the classes from the site but I managed to find a ref to IBM
site @http://alphaworks.ibm.com/aw.nsf/download/rmi which had similar download.
The download however didn't solve my problems. I was unable to install rmi.zip with
RmiPatch.exe install.
I solved this by extracting the class files from rmi.zip and installing them at C:\WINDOWS\JAVA\trustlib ( msJVM installation trusted classes lib defined in
registry HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Java VM\TrustedLibsDirectory )
This solved the problem. My rmi/applet worked.
Hope this helps you.
Chris
([email protected]) -
How to run JMF Applet on a machine without JMF installed
Hi
I have found many question about that but I don't undertand reply.
I want display a JMF Applet on a machine without JMF installed. This PCs browser is the Netscape navigator 4.78
I have restrictions, I can't install anything on a client machine. What can I make ?
Is there solutions ?
Is it possible to install few components to run the JMF Applet and desinstall it properly ?
Thanks.
Sorry I don't speak well english.private void detectDevices(Label la) {
// Check if VFWAuto or SunVideoAuto is available
Class directAudio = null;
Class autoAudio = null;
Class autoVideo = null;
Class autoVideoPlus = null;
Object instanceAudio;
Object instanceVideo;
Object instanceVideoPlus;
try {
directAudio = Class.forName("DirectSoundAuto");
} catch (Exception e) {
try {
autoAudio = Class.forName("JavaSoundAuto");
} catch (Exception e) {
try {
autoVideo = Class.forName("VFWAuto");
} catch (Exception e) {
if (autoVideo == null) {
try {
autoVideo = Class.forName("SunVideoAuto");
} catch (Exception ee) {
try {
autoVideoPlus = Class.forName("SunVideoPlusAuto");
} catch (Exception ee) {
if (autoVideo == null) {
try {
autoVideo = Class.forName("V4LAuto");
} catch (Exception eee) {
if (directAudio == null && autoAudio == null &&
autoVideo == null && autoVideoPlus == null) {
return;
try {
if (directAudio != null) {
instanceAudio = directAudio.newInstance();
la.setText("loading....dirver:"+directAudio.getName());
if (autoAudio != null) {
instanceAudio = autoAudio.newInstance();
la.setText("loading....dirver:"+autoAudio.getName());
if (autoVideo != null) {
instanceVideo = autoVideo.newInstance();
la.setText("loading....dirver:"+autoVideo.getName());
if (autoVideoPlus != null) {
instanceVideoPlus = autoVideoPlus.newInstance();
la.setText("loading....dirver:"+autoVideoPlus.getName());
} catch (ThreadDeath td) {
throw td;
} catch (Throwable t) {
call this function for init -
Cannot run the code from local machine - works after deployment!!!
Hi,
I am totally new to application server. My problem is that the application code after it is 'deployed' from JDeveloper to Oracle Application Server - it works fine. I can go to the web application from the url and do a 'Submit' of forms and it works fine. The problem comes when I try to connect to dev. environment from local machine and try to do a 'Submit' (done for debugging purposes), I get a 500 Internal Server Error. Is there a configuration file or property I file I have to change? I am clueless.
Basically addRequest can be considered as the 'Submit'.
Javax.faces.FacesException: #{newRequestItem.addRequest}: javax.faces.el.EvaluationException: java.lang.IllegalAccessError: tried to access class javax.xml.rpc.FactoryFinder from class javax.xml.rpc.ServiceFactory
At com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98)
My application is built on ADF and JSF and connects to BPEL workflow and DRM. So it is using WebServices.
Thanks.Hi,
Top further pinpoint the issue, I can make the SSRS report work with the stored procedure by running
SP_recompile 'myStoredProcedure'
So, SQL Server has somehow messed up the execution plan for the sproc. But to repeat, executing the Sproc in Management Studio works just fine, I just look the exact sproc and parameters with SQL Profiler when it is not working in SSRS report, then run that
same sproc manually and it works.
After extensive debugging, it seems to raise from one specific SELECT row:
SELECT
cte.TIMEYEAR + 1 AS TIMEYEAR,
where cte.TIMEYEAR is varchar. After changing that to
SELECT
CAST(cte.TIMEYEAR + 1 AS VARCHAR) AS TIMEYEAR,
it started to work.
What will probably remain forever unclear is that WHY the original select always breaks every now and then, and always starts to work with a simple sp_recompile. I could reproduce the error easily by running
exec sp_msforeachtable @command1="EXEC sp_recompile '?'";
after which the sproc raised error: "Conversion failed when converting nvarchar value 'Q1/2000' to data type int".
..aaaand then just by running SP_recompile 'myStoredProcedure' it again started working fine. I could reproduce this break & fix pair coherently.
Still it makes no sense from SSRS report perspective, when sproc was broken in Management Studio query, it was always broken from SSRS report end as well, but sometimes when sproc was working from SSMS, it wasn't working from SSRS. -
How to run an applet(in a html file) in the server?
I am using the jpedal Viewer inmy code, I embedded the applet code
in a html file , it is running fine, but when I try to run the same Viewer applet in the Server it is throwing an error
"java.lang.NoClassDefFoundError: org/jpedal/objects/acroforms/DefaultAcroRenderer
at org.jpedal.PdfDecoder.startup(Unknown Source)
at org.jpedal.PdfDecoder.<init>(Unknown Source)
at pdfViewer.PdfApplet.init(PdfApplet.java:199)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)"
What is the problem ?
Please suggest solution for it?
Its urgentI am trying to run the Applet in Tomcat server,
Could you post the code where you invoke the Applet? It sounds like you're saying you're trying to run the Applet as part of your server-side code. The other interpretation is that you are simply accessing the Applet through the browser that happens to be on the machine being used as the server.
Like I say, post the code that shows how you're trying to use the Applet "on the server". -
Why can't I make the applet work?
I have developed an applet to capture the video stream from a Logitech (usb) camera and display it in the applet. This is a clone of another program that captures a network camera video stream and does the same thing.
I am using JBuilder 2005 and when I run the applet in the JBuilder applet viewer, it works fine, but not when I attempt to run it in the browser.
In the network camera application, I was able to overcome this by signing the jar file and it would run in the browser.
In the Logitech application signing the jar file does not work. I get the mesage that asks me if I want to accept the certificate, but it still does not initialize the camera.
Since I can use it in the Applet Viewer, I have to assume that all the connections are set up OK.
But the application fails when trying to get the capture device in:
di = CaptureDeviceManager.getDevice(str2);
I put the startup code in a thread and perform several iterations with a slight delay, suspecting that there may be a timing issue, but that was not the problem.
This code also works in a stand-alone application version.
The only thing I can think of is that there is some other connection or security issue that I am not addressing.
Since signing the jar file works with network video streams, I have to think that there is something different between USB and network video streams, but I have no clue as to what it might be.
Anyone have any suggestions?from the JMF readme file
Security Note
During the installation, you will be asked two security related questions:
* Permit recording from an applet
If you agree to this, JMF will allow applets to capture audio and video from the local capture devices. It is possible for a malicious hidden applet on a web page to quietly record sounds or video from your system and transmit the data back to a system on the internet. This is usually a risk only if you visit unfamiliar web sites.
You can disable or enable this feature by running the JMFRegistry application (or choose Preferences from the JMStudio File menu), modify the setting in the User Settings tab and commit the changes.
* Permit writing local files from an applet
This is a greater security risk since a malicious applet can overwrite files on your hard disk without your knowledge. Enable this feature only if you need it for a specific application and are sure that you will not visit any possibly malicious web sites.
You can disable or enable this feature by running the JMFRegistry application (or choose Preferences from the JMStudio File menu), modify the setting in the User Settings tab and commit the changes. -
Hi...
I am trying to make an JAVA applet in which i am trying to read the File through JFileChooser, so for that we need a dialog box to show up...right...
when i run that applet from the JCreator environment, it does shows me that dialog box when i click on the menu and say open..
but when i tried running just that webpage and try opening a file through the menu, it didn't work....any ideas y...
AnchalApplets cannot access the local file system, nor can they make connections to a server
other than the one the applet came from. it can allso not run other programs.
Sign the applet or let the client set up a policy for it.
http://forum.java.sun.com/thread.jsp?forum=63&thread=524815
second post
My guess is that when you run the applet with JCreator a full permission policy is used
just like with Eclypse. -
Genuin solution required on security of the applet
Hi foks !
Well I have a simple signed applet which reads the file from the local machine. I am using JRE 1.4 for running the applet. And i have signed the applet using 1.3. Now, my applet works fine with JRE 1.4 plugin but when i run the same applet on JRE 1.3.0 or JRE 1.3.1 or .2 It gives me the exception said : I have given the net and file read,write permissions on all files. Follwing is the exception I am haveing
java.security.cert.CertificateException: Unable to verify the certificate with root CA
Any help???
Thanks in advance..
KaushHi Kaush:
1.4 version supports SelfSigned certificate, not 1.3.
So to make ur plugin trust ur selfsigned certificate, u need to import your selfsigned certificate to the cacert file which can be found under the <plugin installation>/jre/lib/security directory. I expect u to know how to export and import the certificate to the cacert keystore. Only verisign and thawte certificates are present in the cacert keystore and not ur selfsigned certificate.
Rest assured and have a nice weekend.
hasta la vista -
I am new to java card . I am running the Sample Example given and some.....
I am using the ACR 38 Smart card System
I am running the applet file of ACOS 3
in the First button
ACCOUNT :
what to enter in the Credit,Debit,Certify,Revoke text fields and while clicking those buttons in bottom ,it just focusing on the particular text field is this the case
CREATE FILES:
Why the drop down list of Select Reader is activating after clicking intialize button .How to create filesHey Carolyn1951,
Thanks for the question. I understand you have a few apps that only display "Waiting". The following is a past discussion that dealt with a similar issue, the answer may help you as well:
App updates won't download on my...: Apple Support Communities
https://discussions.apple.com/thread/4111336
Try tapping the App, so that it changes to Paused instead of Waiting, then tap it again to resume the install.
Make sure you don't have any paused downloads in other apps either, like the App Store or iTunes Store.
If that doesn't do it, try resetting or restoring the iPhone.
via whatheck
Thanks,
Matt M. -
How do I update a file in an Applet's JAR file from the Applet code
Here's my problem.
My applet is using a serializable history data in which I am storing in the applet's JAR file. When I run the applet, I read the file with "getResourceAsStream()" and run my program with that hist data. When my applet is closed, I need to update this file from my Applet's code and I dumfounded about how to do that.
Is there any way to update a file in the Applet's JAR file through the Java Applet code? (i.e. OutputStream?).
Would appreciate any advice people have.Just place a copy of the file on the local hard disk and update that. When you start the Applet you try to read from the hard disk. If the file exists then no problem otherwise copy it from the jar to the hard disk.
-
Why cant i run my applet on JRE 1.6 but on JRE 1.5?
Hello,
I know this is a very basic problem, but i still cannot get a justified answer for this problem. Its like i have an applet which is compiled in JDk j2sdk1.4.2_16. Now when i try to run this applet on my IE under jre 1.5.* family on all the client machines it works fine. But when i switch to jre 1.6.* family, i see the applet being displayed, but i cannot perform any operations on it i no mouse clicks work and i cannot open any file menu or my jdialog boxes.
Is it because of the incompatibilities in jre 1.6, but wont it be backward compatible to that older version applets can run on this new jre. My applet seems to be a simple applet,with only one exception that it has lot of jframes and jpanel in it.
This problem is killing me ..
Can someone point me towards where can i find what all changes are made in JRE 1.6 over JRE 1.5 so that atleast i can compare what is causing my applet freeze in JRE 1.6.
i went through the release notes but cant find anything useful there.
Please help.Sun ensures that newer versions of the JRE are backward compatible. Your applet should work under the newest JRE version. Have you tried running the applet in a different browser (e.g., Firefox) with JRE 1.6 to eliminate it being an IE issue?
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