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CodingBat code practice

 

queueTail7


Ensure the queue's tail is 7.


queueTail7([1, 4, 9]) → [1, 4, 9, 7]
queueTail7([3, 4, 7, 9]) → [3, 4, 7, 9, 7]
queueTail7([7, 9, 3, 4]) → [7, 9, 3, 4, 7]

...Save, Compile, Run (ctrl-enter)

public ArrayList<Integer> queueTail7(ArrayList<Integer> list) { }

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