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What is Soft, Weak and Phantom references in java?

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What is Soft, Weak and Phantom references in java, please provide explanation with example?

posted Oct 9, 2014 by Vikram Luthra

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1 Answer

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Garbage Collector won’t remove a strong reference.

A soft reference will only get removed if memory is low.

A weak reference will get removed on the next garbage collection cycle.

A phantom reference will be finalized but the memory will not be reclaimed. Can be useful when you want to be notified that an object is about to be collected.

answer Jun 23, 2016 by Karthick.c
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