Computer scienceProgramming languagesJavaWorking with dataMultithreadingThread-safe collections

Thread-safe maps

Theory

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Match the sentence halves to get correct statements about Collections.synchronizedMap and ConcurrentHashMap.

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The synchronization in synchronizedMap
The synchronization in ConcurrentHashMap
To iterate over a synchronizedMap
To iterate over a ConcurrentHashMap
In synchronizedMap
In ConcurrentHashMap
several threads at a time has access to the map.
only one thread at a time has access to the map.
is performed by an object.
you need to use a synchronized block.
is performed at the bucket level.
you don't need to use a synchronized block.
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