Java Interview Question And Answer How to Synchronize HashMap In Java Interview Question

Published: 08 December 2013
on channel: Interview DOT

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HashMap is not synchronized internally i.e if multiple threads access/modify the contents of HashMap,then there is a possibility of inconsistent data in HashMap-- hence its not thread safe.

So before using the HashMap in a multiple thread environment ,it should be synchronized.

Map m = Collections.SynchronizedMap(new HashMap(...));

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