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how to get index of key from hash table

Posted by sachin_chat (sachin_chat), 27 July 2006
is there any way by which i can get the index of key- value pair  which i have added to hashtable.

i am not sure how enteried are doen in hashtable. if they are done sequentially then the index of key - value pair (or key) is nothing but size -1 . but i m not very sure about this.

is there any way to get this index?

Posted by admin (Graham Ellis), 27 July 2006
When you call back entries from a Java Hashtable, they won't come back in the order they were put in, nor in alphabetic or natural sort order of the keys.  The order will appear to be random, though of course it's far from that.

To extract all the keys, use the keys method which returns you an Emumeration object. The nextElement and hasMoreElements methods let you iterate through the keys.  There's an example of how an emumerator works here



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