Sending/returning a string from a Java Applet to JavaScript

[Bary W Pollack]

Is it possible to have a Java Applet that is running on a web page to send/return a string (or an int) so that some JavaScript that is running on the same webpage can retrieve the information? If so, HOW?

Thanks!

-Bary-

[Laurent Bugnion, GalaSoft]

Re: Sending/returning a string from a Java Applet to JavaScript

Hi,

Bary W Pollack wrote:[color=blue]
> Is it possible to have a Java Applet that is running on a web page to
> send/return a string (or an int) so that some JavaScript that is running
> on the same webpage can retrieve the information? If so, HOW?
>
> Thanks!
>
> -Bary-[/color]

If the browser supports LiveConnect (IE and Netscape do), then it is
possible. See
<URL: http://www.galasoft-LB.ch/myjavascript/consulting/LiveConnect102>
and
<URL: http://www.galasoft-LB.ch/myjavascript/consulting/LiveConnect130>

Laurent
--
Laurent Bugnion, GalaSoft
Webdesign, Java, JavaScript: http://www.galasoft-LB.ch
Private/Malaysia: http://mypage.bluewin.ch/lbugnion
Support children in Calcutta: http://www.calcutta-espoir.ch

[George Maydwell]

Re: Sending/returning a string from a Java Applet to JavaScript

On Fri, 1 Aug 2003 01:10:12 -0700, "Bary W Pollack"
<bpollack@sierr anevada.edu> wrote:
[color=blue]
>Is it possible to have a Java Applet that is running on a web page to send/return a string (or an int) so that some JavaScript that is running on the same webpage can retrieve the information? If so, HOW?
>
>Thanks!
>
>-Bary-[/color]

This is very easy to do. The Java applet needs a public method which
returns a String and all Javascript has to do is call it. Here's The
Modern CA Author Javascript which does this in a setting with frames
where the applet may not even exist:
var mutatedRule = 'Press the "Test CA" button first'
var d = parent.frames["view"].document
var applet = d.applets[0]
if (applet) {
mutatedRule = applet.getRuleC urrentMutation( )
}

Here's what the Java method looks like:
public synchronized String getRuleCurrentM utation() {
return RuleExport.toSt ring(rule, rule.mutated != null ?
rule.mutated : rule.unmutated) ;
}


George Maydwell
--
Modern Cellular Automata: www.collidoscope.com/modernca
Collidoscope Hexagonal Screensaver: www.collidoscope.com