CODEWITHSUNDEEP
javacollections
mjs
mjs

Reputation: 22369

Java, ConcurrentLinkedDeque vs ConcurrentLinkedQueue - the difference?

Api links for ConcurrentLinkedDeque and ConcurrentLinkedQueue:

http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ConcurrentLinkedDeque.html

http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ConcurrentLinkedQueue.html

What is the difference between the two?

The first one, DeQueue has a lot more methods, but what is the fundamental difference between the two?

Upvotes: 13

Views: 6898

Answers (2)

M A
M A

Reputation: 72874

Both collections are thread-safe. The difference is that a ConcurrentLinkedDeque implements a Deque, which supports addition and removal of elements at both ends (e.g. addFirst and addLast), whereas ConcurrentLinkedQueue implements a Queue which allows insertion at one end called the tail of the queue and removal at the other end, called the head of the queue.

Upvotes: 28

Puneet_Techie
Puneet_Techie

Reputation: 197

Dequeue allows insertions & deletions from both the ends of the queue that is why there are many methods.

While queue does not.

Upvotes: 3

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