File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes Performance and the fly likes Hash table Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Java » Performance
Bookmark "Hash table" Watch "Hash table" New topic

Hash table

chandra maddila

Joined: Jun 04, 2001
Posts: 1
Can I store 1 million records in a hash table for a web based application? How the performence will be effected?
George Brown
Ranch Hand

Joined: Sep 26, 2000
Posts: 919
why not try it with a noddy program to see?
You could put String representations of integer numbers into a hashtable indexed by the same integer number as an Integer object. Should be easy enough to knock up with a for loop (but make sure you have a LOT of memory first).
Wouldn't a persistent data store be a better option in the long run?
I agree. Here's the link:
subject: Hash table
jQuery in Action, 3rd edition