How to manipulate Windows System Variables using Java

Hi There,
I want to manipulate Windows System variables (e.g. PATH, CLASSPATH) using Java program. Could anyone please let me know how it can be done in Java.
Regards,
Rakesh Nagar

This is not just a Java question. It has never been possible in any Windows program to permanently change the value of an environment variable. You can only change it temporarily, and when the process that changed it ends, so does the change to the environment variable. This has been true since environment variables were added to DOS in about 1983.

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I just want to know how can i get system variables
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Date today = new Date();
is instantiated with the current date and time.
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>
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JNI. (No.)
>
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>
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How to manipulate Windows System Variables using Java

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