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Hashtables are synchronized...

 
Greenhorn
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Can some one throw light on why Hashtables are called synchronized ...
 
Ranch Hand
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Most all of Hashtable's methods are synchronized to make them (mostly) thread-safe. If you don't need thread-safety (or need finer-grained control), HashMap is your friend. Java 1.5 also added ConcurrentHashMap (or some similar name) that I believe allows multiple readers simultaneously.
 
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I don't know why they chose to synchronize it. Its synchronization is not going to preclude your own synchronization. IMHO its a design flaw and a waste of time for them to have done that.

I welcome other opinions.
 
David Harkness
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Originally posted by CL Gilbert:
I don't know why they chose to synchronize it.

I'd bet five bucks it was a simple matter of the early Java developers at Sun going hog-wild: "Man, it's so cool having synchronization built into the language. I wonder where else I can use it?"
 
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Most of time you end up with client level sychronization and would find that hashtable don't really help. HashMap serves you then.
 
Mr. C Lamont Gilbert
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Yes but hashtable and hashmap are not interchangeable.
 
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