Convert Array to Queue

Question

I wish to create a Queue (or Stack) in java using all the elements from an array. Is there some 'nice' way of doing this, i.e in one line without a loop over the array?

suppose this [post](https://stackoverflow.com/questions/23485944/how-to-convert-list-to-queue-to-achieve-fifo) may be helpful to get started. — Rajith Pemabandu, Jul 30 '17 at 02:05
View this post for help in the link below. https://stackoverflow.com/questions/41153502/convert-queue-into-long-array — Mustajeeb ur Rehman, Jul 30 '17 at 03:02

score 24 · Accepted Answer · answered Jul 30 '17 at 02:02

24

This should work. yourArray is the input array. Substitute Object for whatever data type you're dealing with.

Queue<Object> queue = new LinkedList<>(Arrays.asList(yourArray));

answered Jul 30 '17 at 02:02

Rahul Chowdhury

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It worked with Queues but not Stacks, which is good enough for me – TeeMee123 Jul 30 '17 at 02:15
Usually ArrayDeque is better than LinkedList though. – Stefan Feuerhahn Jan 13 '21 at 06:33

score 3 · Answer 2 · answered Jul 31 '17 at 11:59

3

For stacks, you should create a vector object, because stack extends Vector class.

Stack<Object> stack = (Stack<Object>) new Vector(Arrays.asList(theArray));

answered Jul 31 '17 at 11:59

Oguz

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Convert Array to Queue

2 Answers2