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CodingBat code practice

 

queueTail9


Add 9 onto the tail of the queue.


queueTail9([7, 3]) → [7, 3, 9]
queueTail9([]) → [9]
queueTail9([9]) → [9, 9]

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

public ArrayList<Integer> queueTail9(ArrayList<Integer> list) { }

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