How to store unique elements in List?

[Rahul Noel]

Hi,
How to store unique elements in list which already contains duplicate elements in it I mean I want to retrieve unique elements from list where it has duplicate values?


Thanks in Advance,
Rahul Sahu.

[Paul Sturrock]

Why use a List if you need to store unique objects? If you have a list with duplicated values in it and you want just the unique values, add the contents of the List to a Set.
[ July 28, 2008: Message edited by: Paul Sturrock ]

[karimkhan pathan]

Hi ,

If a want all the duplicates to be stored in another list ?what I have to do .

Regards,
karim.

[Rj Vasanth kumar]

Hi
Look this code. Removes the duplicate and returns List object.

org.apache.commons.collections.list.SetUniqueList is from apache common-collection API.

List list =new ArrayList();
list.add("ONE");
list.add("ONE");
list.add("TWO");
list.add("TWO");
Set set = new HashSet();
List l = SetUniqueList.decorate(list);
System.out.println(l);



Regards
vasanth

[karimkhan pathan]

Thanks a lot vasanth ,

But i need duplicates to be stored in another List.

I got it ...Thanks all ..

[Rob Spoor]

Please don't hijack threads. Your problem may be related to the original problem, but it is definitely different.

[Campbell Ritchie]

Rob Prime wrote:Please don't hijack threads. . . .

Agree. Closing thread.