Retrieve OS up time using java

How to retrieve the Operating System's up time using Java.

avila wrote:
Hi,
I'm wondering if someone found a better solution than parsing a result from a OS call.
I was trying with System.nanoTime() function which seems to return the number of nanoseconds since the computer was turned on, but the Java documentation does not say much about where the nanoTime value comes from.
Any help?If I recall correctly, the docs say it's an offset from "some epoch," meaning a given implementation can use whatever it wants as time zero.
As far as I know, there's still no pure Java way to do this.

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