HTML file in an Applet

How can I display the HTML file inside an applet. Somebody please help.
Thanks

You can use a JEditorPane to display an HTML document. You can find how-to information and examples of using editor panes in "Using Text Components", a section in The Java Tutorial.

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Emailing attached HTML file with embedded applet

Are there any mail servers that could reject emails with attached HTML file that includes embedded applet in a Java Plug-in Object tags? It has an absolute path to a server where the applet resides.
I have seen very few cases where Symantec Anti Virus filter is dropping the messages because of a mime problem. It appears that only two workarounds are to upgrade the Symantec product and to bypass our domain.
Is there anything I could do to prevent the mime problem issue? I hope the Java applet is not an issue.
John

pberardi1,
I hope you get better soon from the accident you must have had. Surely you must be in the hospital or something, otherwise by now surely you'd have had the courtesy to say a simple
"Thank you".
So,
"You're welcome".

Open an html-file in an applet

hi!
I'd like to write an applet. This applet should be like a button on a homepage. If the button is pressed a html-file should be opened.
Can anyone say me, how I can realize this?
Thanks,
qedi

In the first place, you need (something like) this;-
if(eventOfButton){
   String urlText = "http://www.myHomePage.com";
      try {
         java.net.URL url = new java.net.URL(urlText);
         getAppletContext().showDocument(url);
      catch(MalformedURLException me){}
And secondly, I am interested in making new friends (penpals or chat buddies) who share an interest in inter-galactic space travel and was wondering if you might be interested?

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 urgent

I 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".

How to show applets in a html file ?

Hi all
I have created an applet with jdev ,and I also generated the corresponding html file and a main method. So the java file runs standalone when I click on the run button , but when I copied the class file and the html file in a web server, then there is nothing in the applet region ! Can anyone help me ?
Here are the code :
Code of the java file :
// Copyright (c) 2001
package pack_applet;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
* Applet
* <P>
* @author xxxx
public class Capplet extends JApplet {
boolean isStandalone = false;
String x;
String y;
JLabel label = new JLabel();
* Constructs a new instance.
* getParameter
* @param key
* @param def
* @return java.lang.String
public String getParameter(String key, String def) {
if (isStandalone) {
return System.getProperty(key, def);
if (getParameter(key) != null) {
return getParameter(key);
return def;
public Capplet() {
* Initializes the state of this instance.
* init
public void init() {
x = this.getParameter("x", "0");
y = this.getParameter("y", "1");
try {
jbInit();
catch (Exception e) {
e.printStackTrace();
private void jbInit() throws Exception {
this.setSize(new Dimension(400, 400));
this.getContentPane().add(label, BorderLayout.CENTER);
label.setText("x = "+x+" y = "+y);
* start
public void start() {
* stop
public void stop() {
* destroy
public void destroy() {
* getAppletInfo
* @return java.lang.String
public String getAppletInfo() {
return "Applet Information";
* getParameterInfo
* @return java.lang.String[][]
public String[][] getParameterInfo() {
String[][] pinfo =
{"x", "String", ""},
{"y", "String", ""},
return pinfo;
* main
* @param args
public static void main(String[] args) {
Capplet applet = new Capplet();
applet.isStandalone = true;
JFrame frame = new JFrame();
frame.setTitle("Applet Frame");
frame.getContentPane().add(applet, BorderLayout.CENTER);
applet.init();
applet.start();
frame.setSize(400, 420);
Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
frame.setLocation((d.width - frame.getSize().width) / 2, (d.height - frame.getSize().height) / 2);
frame.setVisible(true);
frame.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } });
static {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
catch(Exception e) {
e.printStackTrace();
And code of the html file :
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows-1252">
<HTML>
<TITLE>
HTML Applet Test Page
</TITLE>
</HEAD>
<BODY>
<SCRIPT LANGUAGE="JavaScript"></SCRIPT>
<COMMENT><SCRIPT LANGUAGE="JavaScript1.1"></SCRIPT></COMMENT>
pack_applet.Capplet will appear below in a Java enabled browser.<BR>
<SCRIPT LANGUAGE="JavaScript"></SCRIPT>
<APPLET CODE = "pack_applet.Capplet" CODEBASE = "Capplet.class" WIDTH = 400 HEIGHT = 400 ALIGN = middle NAME = "TestApplet" >
</XMP>
<PARAM NAME = CODE VALUE = "pack_applet.Capplet" >
<PARAM NAME = CODEBASE VALUE = "Capplet.class" >
<PARAM NAME = NAME VALUE = "TestApplet" >
<PARAM NAME = "type" VALUE = "application/x-java-applet;version=1.2">
<PARAM NAME = "x" VALUE = "0">
<PARAM NAME = "y" VALUE = "1">
</APPLET>
</NOEMBED></EMBED></OBJECT>
</BODY>
</HTML>
Thank you very much.

you can load your pdf into your browser using
navigateToURL(new URLRequest("yourpdf.pdf"));

Html file to run an Applet using swings in 1.4.1 or 1.3.1

Can anyone send me an html document to launch the applet in a browser. I have very basic html, but I need one that uses the appropriate plug-in and that has parameters such as height, width, etc. My applet uses tabbed panes, dialog boxes and comboboxes. It works well with appletviewer, but does not work in IE or Netscape.
Thank you for your help
here is what I am using which does does show anything but a grey screen
<HTML>
<HEAD>
<TITLE>
CIS 602 Semister Project
</TITLE>
</HEAD>
<BODY>
<BR>
<H3>
<CENTER>
Swing
</CENTER>
</H3>
<H3>
<BR><BR>
<P><H3>
<CENTER>
<BR><BR>
<P><h2>
Structured Problem Solving Strategy
</h2>
<blockquote>


<SCRIPT LANGUAGE="JavaScript"></SCRIPT>
<COMMENT><SCRIPT LANGUAGE="JavaScript1.1"></SCRIPT></COMMENT>
<SCRIPT LANGUAGE="JavaScript"></SCRIPT>
<APPLET CODE = "semiclient.class" WIDTH = "570" HEIGHT = "500" ></XMP>
<PARAM NAME = CODE VALUE = "semiclient.class" >
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.4.2">
</APPLET>
</NOEMBED></EMBED></OBJECT>


</Center>
<BLOCKQUOTE><PRE>
</PRE></BLOCKQUOTE>
</H3>
<BLOCKQUOTE><PRE>
</PRE></BLOCKQUOTE>
</H3>
</BODY></HTML>

Try this:
<HTML>
<HEAD>
<TITLE>CIS 602 Semister Project</TITLE>
</HEAD>
<BODY>
<CENTER><H3>Swing</H3></CENTER><CENTER><H2>Structured Problem Solving Strategy</H2></CENTER>
        <OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
            width="750"
            height="575"
            align="baseline"
            codebase="http://java.sun.com/products/plugin/autodl/jinstall-1_4_0-win.cab">
            <PARAM NAME="code"       VALUE="full.qualified.ClassName">
            <PARAM NAME="codebase"   VALUE="path/to/your/class/files/or/archive/">
            <PARAM NAME="archive"    VALUE="nameOfJarWhichContainsClassFiles.jar">
            <PARAM NAME="type"       VALUE="application/x-java-applet;version=1.4">
            <PARAM NAME="scriptable" VALUE="false">
            <COMMENT>
                <EMBED type="application/x-java-applet;version=1.4"
                    width="750"
                    height="575"
                    align="baseline"
                    code="full.qualified.ClassName"
                    codebase="path/to/your/class/files/or/archive/"
                    archive="nameOfJarWhichContainsClassFiles.jar"
                    pluginspage="http://java.sun.com/products/plugin/1.4/plugin-install.html">
                    <NOEMBED>
                        No Java 2 SDK, Standard Edition v 1.4 support for APPLET!!
                    </noembed>
                </embed>
            </COMMENT>
        </OBJECT>
</BODY>
</HTML>

How to create a small HTML-file in Applet

What i wan't to do is as follows:
1. In an applet i create a string containing a small HTML-file. Its contents depends on what the user chose in the applet.
2. then i wan't to redirect the browser to that HTML-file. appletcontext.showDocument(URL) could be used.
The problem is how can i create an URL to a string which is only in memory.
Writing the string to a file and then creating URL to it poses problems, as we all know, writing files from applets is difficult.
Any help would be appreciated.

Here is how you do it:
1) use the JSObject (you may have to import
netscape.javascript.JSObject depending on the
version of your SDK) to open a window with an empty
URL, a title , and a _blank or _self
target.
2) use the JSObject document.write to write the HTML
string to the window that you opened in #1 above
3) close the document.
If you need further assistance, post your code and I
can modify it for you or if you want, I can whip up a
small demo applet for you to try.
;o)
V.V.Thanks!! Your post has been very helpful. One question though, I suppose the client has to have a java-plug-in installed in his/her web-browser, is that right?

Why the html file doesn't change with applet ?

i am new to java , i get a problem when i am modifying a applet . i recompile it to .class file but did not change its name . and the .html file which use the applet doesn't change with it , it still shows the original style , even when i delete the .class file . it works until i changed the name of the source file and use the different .class file in html . it's troublesome if i need to modify the source file because i must change the name to get it . can you tell me why and how could i avoid this ?

I am new also & had a similar experience.
In my case it was aftercompiling and trying to refresh the browser to get it to display the new version of my applet. I got around this by holding Ctrl down and pressing F5 to refresh.
Also, some of the systems at university cause exactly the problem you describe. Not sure why it should work but we overcame it by placing our files in the JDK folder on those systems & it worked properly. May be worth a try.

A helloworld java applet that will work on an html file

I have spent a lot of time trying to get a java applet to work on a web page. Of course, I can download zip packages and they will work. But I can?t seem to find a formula for creating something simple that will work.
All the examples that I have found will either work on Windows when running it on the command line, or work in Netbeans, but none of them will work when I put time into an html file on a linux web server.
Can someone post, maybe the simplest code that will output ?Hello world? on a Linux Apache Web server.
I have the gist for creating and programming java? as least a basic start. But I?m anxious to see an example that I can compile that will actually display on an html file and not just my Windows programming environment.
Thanks in advance for any feedback on this.
-- L. James
L. D. James
[email protected]
www.apollo3.com/~ljames

AndrewThompson64 wrote:
apollothethird wrote:
I have spent a lot of time trying to get a java applet to work on a web page. Of course, I can download zip packages and they will work.Does that somehow relate to this problem? What exactly does a Zip 'package' do when it 'works'?It displays the text on the web page.
>
.. But I cant seem to find a formula for creating something simple that will work.
All the examples that I have found will either work on Windows when running it on the command line, or work in Netbeans, but none of them will work when I put time into an html file on a linux web server.
Can someone post, maybe the simplest code that will output Hello world on a Linux Apache Web server.
Is that a question? Please make sure to add a question mark.
// <applet code='HelloWorldApplet' width='400' height='300'></applet>
import javax.swing.*;
public class HelloWorldApplet extends JApplet {
public void init() {
add(new JLabel("Hello World!"));
validate();
I have the gist for creating and programming java as least a basic start. ... Applets are not for newbies. Leave them alone for at least another 6 months.Thanks, Andrew. The lines of text you provided were very enlightening. I was able to do a lot of dissecting and experimenting and have the full gist of my question answered. I don?t have any problems outputting either text on the console or text on browsers.
-- L. James
L. D. James

Include many jars for a complex signed applet in html file??

hello
I'd like to know how it's possible to put a signed applet in an html file, that needs many jar files.
I explain myself: I know that to create a signed applet and to put it in an html file, I need to create a Jar file that contains this applet, create a private key with keytool, sign the jar and include it in my html file with the tag <applet code="....." archive="......jar".... />
This works fine if my applet is a simple program that only uses the clases present by default in the jdk.
In my case, I have a big project, with many packages. In one of these packages, I have my applet that uses some classes of the other packages, which use classes from imported jars, such as BouncyCastle, and others...
There is still no problem when I run the applet from the applet viewer.
The problem appears when I put the JAR file with all these classes in the html file: there is a problem since it doesn't know anything of these classes imported from these jars.. It's quite obvious actually.
My question is: how do I do to make the html file aware of these classes? Is there an html tag that allows us to include many jar files? Do I have to decompress all these jars, take all the directories, add them to the directories of my project and create a BIG jar (that's what I did, but it's really dirty, and heavy! (11M))??
Does anyone have an idea about how I can do it?
Thanks for your help
Philippe

11 MB is pretty big for an applet.
Let's say your applet uses java 3d, normally a client would download and
install this seporately, meaning the jars needed end up in lib/ext directory where
any applet can find them.
Check what applets need to be installed (put in lib/ext) and what can be
downloaded:
<object .....
<param name="archive" value="myJar.jar, myOtherjar.jar" />

Run applet in browser when html file is stored in different dir.

I have a SiteSelector.class stored in: "D:\DATA\Java Programmes\Networking\"
and a SiteSelector.html stored in :"D:\DATA\Java Programmes\Networking\HTML files\"
Here is a part of the code of SiteSelector.html:
<applet code= "SiteSelector.class"
width=500
height=500
codebase="D:\\DATA\\Java Programmes\\Networking\\"
archive=""
alt="Your browser understands the <APPLET> tag but isn't running the applet, for some reason."
>
<param name = "title0" value = "Java Home Page">
          <param name = "location0" value = "http://java.sun.com/">
<param name = "title1" value = "Deitel">
          <param name = "location1" value = "http://www.deitel.com/">
          <param name = "title2" value = "JGuru">
<param name = "location2" value = "http://www.jGuru.com/">
<param name = "title3" value = "JavaWorld">
<param name = "location3" value = "http://www.javaworld.com/">
Your browser is ignoring the <APPLET> tag!
</applet>
Since html file and .class file are stored in different directories so in applet tag I specify absolute url in "codebase = ......" to indicate that the browser should look for .class file in "D:\DATA\Java Programmes\Networking\".
But when I run the Applet in the browser, nothing happens. But when I copy the html file back to "D:\DATA\Java Programmes\Networking\" and change the codebase = "D:\\...." to codebase = "." It works well. Any one can help me to hanld this problem. I want to run the applet in the browser when the html file is stored in different directory. Thank you.
Message was edited by:
beckham12a18
Message was edited by:
beckham12a18
Message was edited by:
beckham12a18
Message was edited by:
beckham12a18

anyone please help me!!!!

How to keep HTML code in the applet source (.java) file itself?

Hi,
How to keep HTML code (APPLET tag) in the applet source (.java) file itself?
Please give an example?
thank you,

R6i wrote:
...What I mean is without writing external HTML file, how to run an applet (during practice)?'Practice'? What does that mean? During development? If that is what you are referring to, add an applet tag at the top of YourApplet.java inside a Java comment area. Then AppletViewer (in recent SDKs) can then run it with just..
prompt:javac YourApplet.java
prompt:// the '.java' extension is not a mistake
prompt:appletviewer YourApplet.javaIf you do not mean 'during development', then that brings us back to +"What advantages do you see that is bringing to the end user?".+

Applet. Is it new while browser opens html file?

I want to know if applet is new every time. I have an applet in html. it works to write some strings so I use param to transfer new string content. do it takes time to download applet everytime while the new string transfer to html file? in fact, browser get asp file.
by the way:
I am confused about that I should deal string by applet in browser or in server? which on is the better? I use w_server and asp.
Thank you for your attention.

Your question is a little unclear. You may want to start here (below). It explains the basics of how an applet works and its lifecycle.
http://download.oracle.com/javase/tutorial/deployment/applet/index.html

Link button in applet to open html file in same window

Hello I am an student in holland.
I am working on a project but can't find a code to make a button what links to an html file practicly just a link
I got a html where i need to implent the applet to the applet only needs 10 buttons who can link to another html file or site.
its not realy difficult i geus but i just cant find the right codes and because i only got 1 day left im asking for help on this forum.
I realy hope you guys can help me.
greets,
Rob

It's hard to tell what you're asking, but you should probably take a look at java.applet.AppletContext.showDocument.

Adding 2 archive into one applet html file

I have 2 questions
first one is i have an applet html file and i want to add 2 jar file as an archive of it
but i dont know how can i do it?
second one is i have a signed jar file and i want when people open the html page one of the clases which include in jar file to be shown
for example i have an applet class inside of the jar file and when people open the html page i want that applet class to be show
is two of this possible if it is how?

sorry i found the java console error and it says
java.lang.ClassFormatError: Incompatible magic value 1347093252 in class file techclient
     at java.lang.ClassLoader.defineClass1(Native Method)
     at java.lang.ClassLoader.defineClass(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)

HTML file in an Applet

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