what is the use of Volatile Key word ??

[Dhineshkumar raj]

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

[Rob Spoor]

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.

[Gangadhar Reddy]

Well Said :-) Indeed I was looking for this anwer for quite some time