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what is the use of Volatile Key word ??

 
Greenhorn
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what is the use of Volatile Key word ??

There is a primitive variable
volatile int b = 10; // this is a master copy

Locally thread A changes this int b as 5.
Locally thread B changes this int b as 20.

thread c want to use this int b.
now what c will get??

If didn't use volatile what will happen.

Regards
Dhinesh
 
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Volatile is only meaningful in a threaded environment. It means that instead of using a possibly cached version, the latest version is retrieved every single time.
 
Greenhorn
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Well Said :-) Indeed I was looking for this anwer for quite some time
 
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