Concurrent data structures in java

Asked Mar 20 '17 at 19:50

Active Mar 20 '17 at 19:50

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I need a concurrent List, and the first idea that came into my mind is using Vector. But as far as i know, Vector is not very efficient for example when reading (two threads cannot read from it at the same time).

Is there any existing collection that improves this? (ConcurrentHashMap is not a good option because it doesn't allow duplication's).

asked Mar 20 '17 at 19:50

annnnnnnnnn

answered long ago: https://stackoverflow.com/questions/6916385/is-there-a-concurrent-list-in-javas-jdk (CopyOnWriteArrayList) – Mikhail Antonov Mar 20 '17 at 19:54
thanks @MikhailAntonov ! – annnnnnnnnn Mar 26 '17 at 15:33
my only question is - is it opossible that reading operation (like get(i)) will wait in CopyOnWriteArrayList? for example if another thread in writing at the same time. – annnnnnnnnn Mar 26 '17 at 15:34

Concurrent data structures in java

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