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Check if 32 bit or 64 bit processor?

 
Greenhorn
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Is there a way to find out if the processor is 32 bit or 64 bit?

System.getProperty("os.arch") or System.getProperty("sun.arch.data.model") checks for the OS.

Similarly do we have anything specific to processor in Java?



 
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Does it matter? You can't use any 64-bit features of the processor if the OS is only 32-bit.
 
Aparna Sree
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Ok!
I wasn't sure of the behavior of a 64 bit processor with 32 bit OS .
I have DLLs for 64 bit machine and 32 bit machine which I am supposed to execute through java. I had to check the processor version before executing.
That info helped. Thanks!
 
Rob Spoor
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64-bit DLLs will not work on 32-bit Windows, even if the processor is 64-bit. So if you just use the OS architecture that will be just fine.
 
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