Practice Deque Interface - 15.4.2 | 15. Collections and Generics | Advanced Programming
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

Typing
Memory
Math
English Adventures
Knowledge

15.4.2 - Deque Interface

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does the Deque interface allow you to do?

💡 Hint: Think of adding to the front and back.

Question 2

Easy

Name one method of the Deque interface.

💡 Hint: These methods handle element addition and removal.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

Which of the following methods is NOT part of the Deque interface?

  • addFirst()
  • addMiddle()
  • removeFirst()
  • removeLast()

💡 Hint: Think about methods that handle the ends of the collection.

Question 2

True or False: A Deque can only be accessed from one end.

  • True
  • False

💡 Hint: Recall the features of FIFO and LIFO.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Create a Java program that uses a Deque to simulate a simple undo feature for a text editor where actions can be pushed and popped.

💡 Hint: Consider how user actions can be stored in a Deque.

Question 2

Design a queue system using Deque where high priority tasks are accessed first but regular ones need to wait. How would you manage this?

💡 Hint: Think about task arrangements in a real-life scenario.

Challenge and get performance evaluation