Truncate a LinkedList (original) (raw)

Daniel Fuchs daniel.fuchs at oracle.com
Tue Feb 19 10:38:14 UTC 2013

On 2/19/13 11:27 AM, Weijun Wang wrote:

Hi All

I'm using LinkedList to maintain a history and the elements are ordered by their timestamps. Every now and then I would "expunge" the list, that is to say, iterating through the list and when an element is old enough all elements after (and including) it will be removed. Currently I'm removing them one by one. Is there a way to truncate the list using a single method? Thanks Max

Hi Max,

You could try to use AbstractList.subList(...)

<http://docs.oracle.com/javase/6/docs/api/java/util/AbstractList.html#subList%28int,%20int%29>

Quoting from the doc:

For example, the following idiom removes a range of elements from a list:

list.subList(from, to).clear();

-- daniel

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