Computer scienceProgramming languagesJavaWorking with dataCollectionsCollections framework

Queue

Theory

What elements does the deque contain

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Here's a code with a deque:

Deque<Integer> deq = new LinkedList<>();
deq.offerFirst(10);
deq.peekFirst();
deq.offerFirst(20);
deq.offerLast(30);
deq.peekLast();
deq.pollFirst();
deq.offerLast(40);

What elements does the deque contain after executing the code above?

Enter all values from left (the first) to right (the last) separated by spaces

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