🚀 go-pugleaf

On Tue, 05 Jun 2001 16:03:59 +0800, Russell wrote:

> I can see PID for a process , but how i am going to get PID
> value??? I try to read value without any successful ,belows
> is the code.

There are techniques that you can use to get at just about anything in 
Java, but be aware that doing this would depend on the implementation, 
which could change.  The class of the Process object that you saw was 
actually a subclass of Process, since process is abstract.  It may be 
that a future version of the Java platform you are using will change 
that class, or return an entirely different subclass of Process.  It is 
even possible that the current implementation of Runtime exec() may 
return a different subclass of Process depending on some unknown 
factors.

In other words, you would be giving up the assurances of portability 
that you currently have if you delve into the innards of code that is 
implementation dependant.  If you do that sort of thing, you should 
write *very* defensive code, and plan for the contingency that it will 
fail.

That said, if you are *sure* that you want to do this sort of thing, 
you should be able to use the Reflection API to get at the PID field.  
If the field is not normally accessible, it is possible to override
the accessibility using the setAccessible() method.

-- 
Regards,

John McGrath [TeamB]

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