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 .?

score 7 · Accepted Answer · answered Apr 12 '11 at 07:45

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 '11 at 07:45

Ryan Fernandes

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I used this one and it worked for me . thanks a lot Ryan and ysrb. – SSN Apr 12 '11 at 08:51

score 3 · Answer 2 · answered Apr 12 '11 at 08:04

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>

score 1 · Answer 3 · answered Dec 31 '12 at 12:12

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/

score 1 · Answer 4 · edited Jan 11 '14 at 06:11

1

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

The result of x will be: Java Enabled: false

edited Jan 11 '14 at 06:11

Qantas 94 Heavy

15,750
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answered Jan 11 '14 at 03:21

Pato de Borracha

21
1

score 1 · Answer 5 · edited Mar 21 '17 at 12:39

1

Try this:

https://cdnjs.com/libraries/jqplugin

Eg.

jQuery.browser.java //Java

edited Mar 21 '17 at 12:39

cagdasalagoz

460
1
12
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answered Apr 12 '11 at 07:03

ysrb

6,693
2
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thanks.but do we have any code in java or Java script..? I dont want to use jQuery .? – SSN Apr 12 '11 at 07:07
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. – ysrb Apr 12 '11 at 07:08
I tried that code but it returns "undefined" instead of true or false . Can u guide me on this please ..? – SSN Apr 12 '11 at 07:24
Can I see your HTML? Is it somewhere accessible? Do you have URL? – ysrb Apr 12 '11 at 08:04
Older jquery version have problems detecting java plugin .use the script given below. – Dead Programmer Apr 12 '11 at 08:07

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

5 Answers5

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