Re: JAVA applet probelems

From:
"Andrew Thompson" <andrewthommo@gmail.com>
Newsgroups:
comp.lang.java.programmer
Date:
21 Mar 2007 05:57:27 -0700
Message-ID:
<1174481847.471376.322330@y66g2000hsf.googlegroups.com>
On Mar 21, 5:35 pm, "merrittr" <merri...@gmail.com> wrote:

not sure I understand the compiled classes are in the same directory
as the web page.


What compiled classes? Are you saying the 2 (?)
classes your were first mentioning? Or,
'a whole bunch of classes that includes..
com.adobe.acrobat.Viewer.class'?

Viewer class should *not* be in the same
directory as the HTML, but indeed (as a loose
class) a subdirectory of the applet codebase
(in this case, the HTML directory) determined
by the package name.

If the applet is at

http://www.thedomain.com/applet/

Then the Viewer class should be in
http://www.thedomain.com/applet/com/adobe/acrobat/Viewer.class

OTOH, the best thing to do is put it in a jar
archive and include the archive name in
the 'archive' attribute of the applet element.

Lets say the viewer and all the other
classes required, were in a jar called
viewer.jar, which itself was in the same
directory as the applet and web page.

You might change the call like this..

<html>
<body>

<applet code="SampleReader.class"


archive="applet.jar, viewer.jar"

 width=900 height=140></applet>

...

This also assumes your two applet classes are
put in archive 'applet.jar' - then the browser
should find all classes.

...What
I need to be able to do is make sure
the applet can be downloaded and run
by any user


Expect a snow storm in Hades, before that
happens. (Or to put that a less obscure way).

You can never *gaurantee* that an end user
will have the correct Java, or any Java,
or that some browser plug-in, browser
manufacturer reaction to a patent challenge,
or any of a dozen other things, causes an
applet to 'not load and run properly'.

As a developer you can take a variety of
measures to help inform an end user that
something has gone wrong, but even in that,
there are no gaurantees.

HTH

Andrew T.

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