Home/ Questions/Q 8611379
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-12T04:21:40+00:00

PriorityQueue implements Queue , but is PriorityQueue a FIFO data structure like Queue ?

  • 0

PriorityQueue implements Queue, but is PriorityQueue a FIFO data structure like Queue?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    From the Queue interface:

    Queues typically, but do not necessarily, order elements in a FIFO
    (first-in-first-out) manner. Among the exceptions are priority queues,
    which order elements according to a supplied comparator, or the
    elements’ natural ordering

    So PriorityQueue is an exception and it becomes a FIFO queue only if the comparator sorts in that order.

    • 0