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Explain about vector, dictionary,hash table, property

Explain about vector, dictionary,hash table, property classes?..

Answer / ravikiran(aptech mumbai)

vector is a legacy class which contains all static methods
dictionary is a sub class of hastable and is used to store
the objects as key-value pairs
hashtable is used to store the objects as key value pairs
and is a legacy class and doenn't allow null keys and null
property is subclass of hashtable used to save the objects

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