How should I put an applet in a strict HTML page?

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I am trying to prepare web pages that contain applets. The old way,
which uses the <applet> tag, has been deprecated for a long time, and
is rejected  if the web page is declared to be strict HTML. The new,
correct, way that is supposed to be portable across browsers is to use
an <object> tag.

The exact details of how to use an object tag are not completely
spelled out, anywhere that I have found.  Mostly, one finds examples of
"this works for me." Well, here is a sample that does work for me, on
several Mac browsers.
   width = "500"
   height = "300" >

Here, "XXXXX" should be the name of the principal class in the applet
(probably an extension of Applet or JApplet), and "YYYYY.jar" should be
a path to the archive file; I make this path be relative to the
location of the HTML file, but I think it could be a general URL .

I have tested this successfully with Safari, Camino, Mozilla, Netscape,
and Firefox.  My test fails o iCab; I think there are serious problems
with CSS and layout that may have interfered.

I welcome criticism, and information on whether this markup is OK for
Windows browsers.

Chris Henrich
The total lack of evidence is the surest sign that the conspiracy is working.

Re: How should I put an applet in a strict HTML page?

On Wed, 22 Dec 2004 18:19:45 GMT, Christopher J. Henrich  


Quoted text here. Click to load it

Sun have produced a document that discusses applet inclusion within a Web  
(<URL: )

but it refers to the EMBED element when discussing Netscape. The proposed  
OBJECT syntax only works for IE and Opera.


Quoted text here. Click to load it

Unfortunately, that won't work with IE, though it will with Opera. After  
some experimentation, I found

   <object type="application/x-java-applet" width="300" height="100">
     <!--[if IE]>
     <object classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
      width="300" height="100">

     <param name="code" value="XXX.class">

     Alternative content

     <!--[if IE]>

to work with IE, Opera, and Mozilla[1], avoid repeating PARAM elements,  
and allow you to specify alternative content without IE rendering it. I  
don't have access to Macs. If you can manage to compile an applet to work  
with NN4 (I can't get my compiler to regress that far :D), adding


to the outer OBJECT element will add further compatibility, though it  
means you're specifying the source in more than one place. If you want to  
add additional information, such as the archive attribute, you might want  
to investigate the URL I cited earlier. Some of the information might need  
to be specified in PARAM elements. I've haven't tried that.

Perhaps someone else can suggest something simpler.


Good luck,

[1] Includes Firefox, Mozilla, and Netscape.

Michael Winter
Replace ".invalid" with ".uk" to reply by e-mail.

Re: How should I put an applet in a strict HTML page?

Christopher J. Henrich wrote:

Quoted text here. Click to load it

You might get more replies by posting the URL to an example.

Toby A Inkster BSc (Hons) ARCS
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