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Cloning a Hashtable

bhuvan gupta

Joined: Mar 26, 2001
Posts: 13

the java documentation says :
Hashtable.clone() Creates a shallow copy of this hashtable. The keys and values themselves are not cloned. This is a relatively expensive operation.
What do u mean by shallow copy ?? Is it just means creating a new reference of the object or something more ??
Frank Carver

Joined: Jan 07, 1999
Posts: 6920
A shallow copy in this case is a new hashtable, with one entry for each entry in the original hashtable, but the entries refer to the same keys and values as the original hashtable.
for example, consider this sequence:

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bhuvan gupta

Joined: Mar 26, 2001
Posts: 13
Got the funda
Thank you very much Frank
I agree. Here's the link:
subject: Cloning a Hashtable
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