Java Queue MCQs with answers Page - 5

You will find multiple-choice questions (MCQs) related to #Java Queue here. Go through these questions to prepare effectively for your upcoming exams and interviews.

To view the correct answer for any question, simply click the "Show Answer" button.

Have a question to share? Click on "Add Question" to contribute!

A

Admin • 828.43K Points
Coach

Q. Which method in BlockingQueue can be interrupted while waiting?

  • (A) put()
  • (B) add()
  • (C) offer()
  • (D) enqueue()

A

Admin • 828.43K Points
Coach

Q. What exception does `element()` throw if the queue is empty?

  • (A) IllegalArgumentException
  • (B) NullPointerException
  • (C) IllegalStateException
  • (D) NoSuchElementException

A

Admin • 828.43K Points
Coach

Q. Which method adds the element at the front of a Deque?

  • (A) add()
  • (B) addFirst()
  • (C) offerLast()
  • (D) enqueue()

A

Admin • 828.43K Points
Coach

Q. Which queue implementation is optimized for producer-consumer scenarios?

  • (A) LinkedList
  • (B) LinkedBlockingQueue
  • (C) PriorityQueue
  • (D) ArrayList

A

Admin • 828.43K Points
Coach

Q. Which method removes all elements from the queue?

  • (A) remove()
  • (B) delete()
  • (C) clear()
  • (D) pop()

A

Admin • 828.43K Points
Coach

Q. Which BlockingQueue implementation uses a linked list structure?

  • (A) ArrayBlockingQueue
  • (B) LinkedBlockingQueue
  • (C) SynchronousQueue
  • (D) PriorityBlockingQueue

A

Admin • 828.43K Points
Coach

Q. Which queue has no internal capacity and requires simultaneous put and take?

  • (A) ArrayBlockingQueue
  • (B) LinkedBlockingQueue
  • (C) SynchronousQueue
  • (D) ConcurrentLinkedQueue

A

Admin • 828.43K Points
Coach

Q. Which of the following is true for ConcurrentLinkedQueue?

  • (A) It blocks on insertion
  • (B) It is unbounded and lock-free
  • (C) It supports delay of elements
  • (D) It is synchronized

A

Admin • 828.43K Points
Coach

Q. Which method throws an exception if the element can't be added?

  • (A) offer()
  • (B) add()
  • (C) put()
  • (D) enqueue()

A

Admin • 828.43K Points
Coach

Q. Which method returns null if the queue is empty while removing?

  • (A) remove()
  • (B) delete()
  • (C) poll()
  • (D) get()

Browse More Tags

Click on tag to learn MCQs of that tag.
What's Tag

As you may know, questions are organized under broad categories. Each category can include various types of questions. For example, the "History" category might contain questions about the Revolt of 1857, Shivaji Maharaj, Ancient History, Buddhism, and more.

To further refine this organization, we've introduced tags, which act as sub-categories to group questions more specifically.

Verified users can add tags to any question. If you have any suggestions regarding this system, we'd love to hear from you. Contact Us

Learn More