Collection framework series in Java - WeakHashMap in java- Explained in Detail

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WeakHaspMap in Java :-
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WeakHashMap is exactly similar to the HashMap but there is a difference with respect to key.
The keys of the HashMap are of Strong reference and the keys of the WeakHashMap are of weak references.
HashMap---Strong references
WeakHashMap---Weak references
The HashMap will ensure that the keys are not Garbage collected
The WeakHashMap will not protect it keys from the Garbage collection.