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Hashset, Hashmap, Hashtable

pravin suroshe
Greenhorn

Joined: Jan 13, 2005
Posts: 8
Hi all,

What is the difference between Hashset, Hashmap, Hashtable?

Thanx in advance.
Steven Bell
Ranch Hand

Joined: Dec 29, 2004
Posts: 1071
From the javadoc of HashMap:

(The HashMap class is roughly equivalent to Hashtable, except that it is unsynchronized and permits nulls.)

As for the HashSet, it is a class that uses hash values to store objects, but obeys the Set contract to not allow duplicate objects.
 
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It's not a secret anymore!