JRE from zip file

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Samik R - 23 Dec 2005 02:14 GMT

Hello,

If I just zip the jre directory from one machine and unzip it in another machine, and set the path, classpath etc, will my java program run ok?
I am planning to run my java program in a machine where I am not able to install JRE (not enough previlege and other issues). Was wondering if I will be able to run my program.

Thanks.

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Dave Glasser - 23 Dec 2005 03:25 GMT

Samik R <samik@frKKshKll.org> wrote on Thu, 22 Dec 2005 20:14:37 -0600
in comp.lang.java.programmer:

>Hello,
>
>If I just zip the jre directory from one machine and unzip it in another machine, and set the path, classpath etc, will my java program run ok?
>I am planning to run my java program in a machine where I am not able to install JRE (not enough previlege and other issues). Was wondering if I will be able to run my program.

I did it successfully once, using JDK 1.3, I think. YMMV.

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Roedy Green - 23 Dec 2005 04:36 GMT

>If I just zip the jre directory from one machine and unzip it in another machine, and set the path, classpath etc, will my java program run ok?

No. You won't get the registry set up. Copy the JRE download and
install. Get the big one.
see http://mindprod.com/jgloss/jre.html

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Samik R - 23 Dec 2005 06:16 GMT

>>If I just zip the jre directory from one machine and unzip it in another machine, and set the path, classpath etc, will my java program run ok?
>
> No. You won't get the registry set up. Copy the JRE download and
> install. Get the big one.
> see http://mindprod.com/jgloss/jre.html

Thanks for the comments. I did it successfully just now with JRE_1.5.0_05.
While running, I guess, it does not require the registry settings.

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Thomas Kellerer - 23 Dec 2005 09:11 GMT

Samik R wrote on 23.12.2005 07:16:

>>> If I just zip the jre directory from one machine and unzip it in
>>> another machine, and set the path, classpath etc, will my java
[quoted text clipped - 6 lines]
> Thanks for the comments. I did it successfully just now with JRE_1.5.0_05.
> While running, I guess, it does not require the registry settings.

The registry entries are only required for the browser plugin, for some
.exe wrappers that use the registry to search for the JDK/JRE, and it
enables you to doubleclick executable jar files.

You will always be able to start a Java program without the registry
setting by simply calling java.exe supplying the necessary parameters.

Thomas

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Roedy Green - 23 Dec 2005 12:40 GMT

>Thanks for the comments. I did it successfully just now with JRE_1.5.0_05.
>While running, I guess, it does not require the registry settings.

the Java console in the control panel will be screwed up.

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Chris Uppal - 23 Dec 2005 08:51 GMT

> If I just zip the jre directory from one machine and unzip it in another
> machine, and set the path, classpath etc, will my java program run ok?

That should work. In believe that is the generally recommended way to ship a
Java-based application since it avoids dependency on the end-user's set up.

-- chris

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Dave Glasser - 23 Dec 2005 15:09 GMT

"Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> wrote on Fri,
23 Dec 2005 08:51:14 -0000 in comp.lang.java.programmer:

>> If I just zip the jre directory from one machine and unzip it in another
>> machine, and set the path, classpath etc, will my java program run ok?
>
>That should work. In believe that is the generally recommended way to ship a
>Java-based application since it avoids dependency on the end-user's set up.

In my case, I put both the JDK and a Swing app on a network file
server, along with a .bat file to launch the app. Users only needed to
double-click the icon for the .bat file and they had the app up and
running, with no code at all deployed to their PCs. It made it very
easy to deploy updates to the Swing app.

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JRE from zip file

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