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Hashtable ????

Deepika Wadhwa
Ranch Hand

Joined: Aug 05, 2000
Posts: 57
Hi all ,
i just want to know that how can i check my Hashtable whether it contains a value greater than "0".
is there any way do it ???

thanx in advance
Deepika


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jason adam
Chicken Farmer ()
Ranch Hand

Joined: May 08, 2001
Posts: 1932
Depending on what you want to do, there are a couple of options. If by 0 you mean that the hashtable has been created, but nothing is in there, you can do a Hashtable.isEmpty(), which returns true if there is nothing in the hashtable, or false if there is.
You can also use Hashtable.size(), which returns the number of keys in your hashtable. This way, if you want to know that there are more than 0, or more than 1, or whatever, you can test for that.
Hope that helps
Jason
Bosun Bello
Ranch Hand

Joined: Nov 06, 2000
Posts: 1510
If you want to check it's contents for a value > 0, then you have to enumerate thru the collection, checking/retrieving, and converting to an int, if need be, each element if it's greater than zero.

Bosun


Bosun (SCJP, SCWCD)
So much trouble in the world -- Bob Marley
jason adam
Chicken Farmer ()
Ranch Hand

Joined: May 08, 2001
Posts: 1932
Wait, are you wanting to know if your Hashtable contains a number that is greater than 0, or if your Hashtable contains more than 0 elements?
 
Consider Paul's rocket mass heater.
 
subject: Hashtable ????
 
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