*i have a question please make me correct if i am wrong :-*

if we compare  FastMap Vs HashMap,

*FastMap is faster than HashMap so long as the map is long lived and
relatively predictable in size. If you try to use it as a short-lived
general replacement for HashMap it may very well kill your performance.

*I found these lines some where in Google.
so does it mean that we should use HashMap for local variables ?

Also please explain me the performance issue if we use HashMap rather then
FastMap.

Thanks for suggestion.

-- 
Sumit Pandit

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