Queue Data Structure Training Course


A Queue is a linear data structure in which the operations are performed in a particular order called First In First Out (FIFO).

This instructor-led, live training (online or onsite) is aimed at developers who wish to learn how to implement queues on the data structure.

By the end of this training, participants will be able to:

  • Learn about the algorithms that are commonly used in the data structure.
  • Understand the applications of queue data structure.

Format of the Course

  • Interactive lecture and discussion.
  • Lots of exercises and practice.
  • Hands-on implementation in a live-lab environment.

Course Customization Options

  • To request a customized training for this course, please contact us to arrange.


  • Basic knowledge of object-oriented programming language


  • Developers

Course Outline


  • What is a Queue?
  • Queue data structure applications
  • Priority Queue, Deque, and Circular Queue

Queue Implementation

  • Implementing Queue using Stacks
  • Implementing LRU cache
  • Implementing Stack using Queues
  • Implementing Deque
  • Priority Queues

Standard Queue Problems

  • Checking if the Queue can be sorted into another Queue
  • Using BFS for a graph
  • Level order tree traversal
  • Reversing a path in BST
  • Constructing a complete binary tree
  • page replacement algorithms program
  • Checking completeness of binary tree
  • Zigzag tree traversal
  • FIFO vs LIFO

Operations on Queue

  • Reversing a Queue
  • Interleaving the first half of the Queue with the second half
  • Sorting a Queue without an extra space

Other Queue Operations

  • Level order transversal in spiral form
  • Finding the largest and smallest multiple
  • The iterative method of finding the height of the binary tree
  • Implementing priority queue through comparator in Java
  • Finding the maximum level sum in binary tree
  • Queue-based approach for the first non-repeating character in a stream

Summary and Next Steps

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