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What's the difference between removeFirst () and pop () in Deque?

  • Answer # 1

    It's simple. The methods are equivalent. But there is a recommendation. If Deque is used as a deque, then removeFirst () is preferred. If Deque is used as a LIFO stack (and it is suitable for this task), then it is preferable to use pop () .

    Similar methods: push (for stack) -addFirst (for queue), peek (for stack) -peekFirst (for the queue).

  • Answer # 2

    According to the documentation, the only difference is that removeFirst () throws an exception if the queue is empty

    According to what documentation and what deck implementation?

    DmitriyD2021-02-23 18:30:49

    According to the documentation orakl to the deque interface. In the question, the implementation is not specified, but the ones I used did it.

    Folko852021-02-23 18:30:49

    I will upset you, and both methods will throw an exception.

    DmitriyD2021-02-23 18:30:49
  • Answer # 3

    Nothing. The pop () method internally calls the removeFirst () method and calling the first or second is equivalent.