How to check ranges of java versions in javascript?

Question

I am stuck: how to check if a user has a specified java requirement? I need to find ranges (for instance java versions between 1.5.0_10 and 1.6.0_10). I am using javaDeploy.js from Oracle and using the versioncheck method but I can't figure what I need to pass inside the versionCheck method for ranges such as the example I provided.

So you want to only launch an application if it is between a range of versions? I checked docs.oracle.com/javase/6/docs/technotes/guides/jweb/… Your interested in using the deployJava object to find the exact version? — Μenelaοs
– Μenelaοs, Commented May 9, 2013 at 20:23

Ian · Accepted Answer · 2013-05-09 20:22:44Z

5

Try this:

var lower = deployJava.versionCheck("1.5.0_10+"),
    higher = deployJava.versionCheck("1.6.0_10+")
if (lower && !higher) {
    // between 1.5.0_10 && 1.6.0_10
}

Reference:

http://docs.oracle.com/javase/tutorial/deployment/deploymentInDepth/ensuringJRE.html

answered May 9, 2013 at 20:22

Ian

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Μenelaοs Over a year ago

You can also make use of deployJava.getJREs() to get the version directly.

Μenelaοs · Accepted Answer · 2013-05-09 20:38:34Z

0

You could also directly get the java version:

<script src="http://www.java.com/js/deployJava.js"></script>
<script>
     var versions = deployJava.getJREs();
     alert(versions);
     if(versions>= "1.5.0" && versions<= "1.6.1")
     alert("correct version");   
</script>

answered May 9, 2013 at 20:38

Μenelaοs

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