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which Collection Class is synchronied?

 
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Ara all Collection Class unsynchronied? or there are some synchronied and some unsynchronied?
 
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Some are and some aren't. For example, ArrayList isn't synchronized while Vector is. Your best resource would be to check the API for whichever classes you're interested in.
Corey
 
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3x
 
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Well, specifically Vector and HashTable are synchronized. All the other collection classes are unsynchronized. However, you can obtain a synchronized wrapper for the collection classes via the Collections class; but the default implementations are all unsynchronized (except for Vector and HashTable)
 
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