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Java: In Java, which comparison about PriorityQueue and Heap Basics is accurate?

Difficulty:

Easy

Questions:

1

Time Limit:

2 minutes

Passing Score:

100%

Question

In Java, which comparison about PriorityQueue and Heap Basics is accurate?

  1. There is no practical difference in behavior, performance, or API design when PriorityQueue and Heap Basics is involved.
  2. A priority queue orders by priority rather than arrival time, unlike a regular queue.
  3. The oldest option related to PriorityQueue and Heap Basics is always the right production choice regardless of context.
  4. Differences around PriorityQueue and Heap Basics are mostly cosmetic, so correctness and maintainability do not change.

Hint

Focus on the behavior or tradeoff, not just the keyword.

Answer and rationale

Correct answer: B. A priority queue orders by priority rather than arrival time, unlike a regular queue.

A priority queue orders by priority rather than arrival time, unlike a regular queue. This is the comparison that usually separates memorization from understanding.

Track: Java