Multiple JREs on the same machine

Hi all,
I face a problem with JREs on my compter. I had a java 6 so when I typed Java -version it shows everything is fine. Then I installed Java 4 as I needed to test a class, when I type java -version it shows java 4. I downloaded multiple java 6, but my computer still feels that it is still java4.
I don't know how to make my computer feels my new jre to run the new version of eclipse for example?
I tried from java under the control panel but this doesn't make any deffernece.
Any help, Thanks a lot,
amm

Assuming Windows.
When you install Java's JRE it places files in the directory Windows\system32 named java.exe, javvaw.exe, and javaws.exe. These files cause a certain Java version to be executed. The last version installed will overwrite the files placed there by earlier installs. Because the default system path of the computer lists this directory first in the pathlist, these files determine what Java version will be executed when you type a "naked " java command - ie, when you type "java <someClassName>."
To execute a different Java version, you need to type the full path to that version's java.exe, ie, "directory1\directory2\etc\java <someClassName>."
Each application (like Eclipse) has it's own rules and settings that will determine which version will be executed. You need to refer to the app's Help for that information.

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nfalmeida wrote:
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          Please try -Dweblogic.system.bindAddr=<a.b.c.d> in your startWebLogic.sh.
          Brian
          "Merg" <[email protected]> wrote:
          >> Then , my question is How is it possible to configure
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          >
          >On Win2K/WinNT you can assign several IP adresses to you
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          >
          >Regards,
          >Merg
          >
          >

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          Please try -Dweblogic.system.bindAddr=<a.b.c.d> in your startWebLogic.sh.
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          "Merg" <[email protected]> wrote:
          >> Then , my question is How is it possible to configure
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          >Regards,
          >Merg
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          >

Multiple JREs on the same machine

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