How to check whether Java plugins are installed or not in a browser using Code .?

Question

How to check whether Java plugins are installed or not in a browser using java or javascript or JSP Code .?

Ryan Fernandes · Accepted Answer · 2011-04-12 07:45:47Z

7

Java/Sun/Oracle provides a deployment toolkit script in the form of a JavaScript file that lets you achieve what you need.

You could invoke the getJREs() function which returns an array of currently-installed JRE version strings.

You can even install a particular JRE version if you need to, via the installJRE(requestVersion) function.

answered Apr 12, 2011 at 7:45

Ryan Fernandes

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1 Comment

SSN Over a year ago

I used this one and it worked for me . thanks a lot Ryan and ysrb.

Dead Programmer · Accepted Answer · 2011-04-12 08:04:06Z

3

Use deployJava.js to check the java installation.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<SCRIPT LANGUAGE="JavaScript" src="deployJava.js">
</SCRIPT>
<script type="text/javascript">
function call()
{
    if (deployJava.versionCheck("1.6.0+") || deployJava.versionCheck("1.4") || deployJava.versionCheck("1.5.0*")) 
    {
        alert("Java is Enabled");
    } else 
    {
        alert("Java is Not Enabled");
    }
}
</script>
<BODY onload="call();">
</BODY>
</HTML>

answered Apr 12, 2011 at 8:04

Dead Programmer

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Comments

Dominik Steiner · Accepted Answer · 2012-12-31 12:12:01Z

1

I tried jqplugin and deployJava first, but those did fail for IE8 at least. So i came over this lib, that has the most comprehensive documentation and implementation that i could find and worked for all the browser that i could test

http://www.pinlady.net/PluginDetect/Java/

answered Dec 31, 2012 at 12:12

Dominik Steiner

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Qantas 94 Heavy · Accepted Answer · 2014-01-11 06:11:57Z

1

From Navigator javaEnabled(): var x = "Java Enabled: " + navigator.javaEnabled();

The result of x will be: Java Enabled: false

edited Jan 11, 2014 at 6:11

Qantas 94 Heavy

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answered Jan 11, 2014 at 3:21

Pato de Borracha

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cagdasalagoz · Accepted Answer · 2017-03-21 12:39:05Z

1

Try this:

https://cdnjs.com/libraries/jqplugin

Eg.

jQuery.browser.java //Java

edited Mar 21, 2017 at 12:39

cagdasalagoz

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answered Apr 12, 2011 at 7:03

ysrb

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5 Comments

SSN Over a year ago

thanks.but do we have any code in java or Java script..? I dont want to use jQuery .?

ysrb Over a year ago

JQuery is a javascript framework/library/helper. I really encourage you to use it. It really helps. You can configure it so that it will not conflict with other libraries.

SSN Over a year ago

I tried that code but it returns "undefined" instead of true or false . Can u guide me on this please ..?

ysrb Over a year ago

Can I see your HTML? Is it somewhere accessible? Do you have URL?

Dead Programmer Over a year ago

Older jquery version have problems detecting java plugin .use the script given below.

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