A friendly place for programming greenhorns!
Big Moose Saloon
Register / Login
List and Set in one
Joined: Oct 17, 2006
May 11, 2009 10:14:20
What do you usually use when you need a collection that is unique (like a Set) but has indexes (like a List)?
Joined: Mar 22, 2005
May 11, 2009 10:21:57
Maybe write a subclass of
that enforces the uniqueness of elements. There are probably ready-made classes like that out there.
Ping & DNS
- updated with new look and Ping home screen widget
Joined: Nov 22, 2002
May 11, 2009 11:17:09
Fahd Shariff<br />"Let the code do the talking"
Author and ninkuma
Joined: Jan 10, 2002
May 11, 2009 11:21:46
Fahd Shariff wrote:
will retain the iteration order, it is not indexable. That would have to be added.
I'd still go with Ulf's approach as it's easier to add uniqueness to a List than index-ability to a Set.
Asking smart questions
Books by Bear
I agree. Here's the link:
subject: List and Set in one
JComboBox: Telling difference if model update or actual select.
Intersection of two lists
Error with creation of data source
How to sort HashSet containing custom Objects...?
All times are in JavaRanch time: GMT-6 in summer, GMT-7 in winter
| Powered by
Copyright © 1998-2014