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way to tell if java-plug in is installed or not?

Posted on 2004-09-04
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Last Modified: 2010-03-31
Hello experts,

I have two questions.  

1- when the window pops up for someone that says "Doyou want to install and run Java Plug-in 1.4.2" is there a way whether someone clicked "yes" or "no"?  

2- is there a way to tell if someone logged into your site has it installed or not?

Thanks,
kesea
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Question by:kesea
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by:kesea
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and 3- can you do voice chat with the old AWT technology? Or just with the new swing?
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by:girionis
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1) I am not sure what you mean. I have never seen this window since I always have the JRE installed. Can you elaborate a bit?
2) You can do it if you use javascript: http://www.skyzyx.com/scripts/java.php
3) Voice chat does not have to do with AWT. It can work independently.
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by:CEHJ
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>>2- is there a way to tell if someone logged into your site has it installed or not?

One way would be to use a 1.4 feature and then get a response from the user based on its correct execution
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by:
objects earned 400 total points
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Load an small applet that requires the plugin, if its not installed it will not load.

You can see an example of this technique used at:

http://www.evalu8.com.au

> and 3- can you do voice chat with the old AWT technology? Or just with the new swing?

AWT/Swing handle the GUI so are not really voice related.
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by:kesea
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"Load an small applet that requires the plugin, if its not installed it will not load"

This is the solution that worked for me.
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by:objects
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Good stuff :)
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by:CEHJ
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That accepted 'answer' will not work for

>>2- is there a way to tell if someone logged into your site has it installed or not?

unless you happen to be sitting with them client-side as they try to load it or tell them to do something like email you with the result, whereas the one i gave, which is a functional superset of that 'answer', will
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by:objects
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Works fine for us, suggest you do a bit of testing before critising peoples suggestions :)

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by:CEHJ
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So you can produce a list of client-sides that have tried to load your applet in the last n days and failed can you?
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by:objects
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I can actually :)
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by:CEHJ
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Then perhaps you can tell all of us how you manage to do it?  ;-)
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by:kesea
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the solution that I accepted worked for me.
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by:CEHJ
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>>the solution that I accepted worked for me.

So you can tell me if i've got the plugin installed on a given machine can you?
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by:kesea
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yes, and for all of our users now as well.
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by:CEHJ
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How? What's the url?
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by:CEHJ
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Just waiting (and still waiting) for somebody to show me how the answer is correct, and *without* rummaging through server log files. I am quite willing to be proved wrong
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