ArrayDeque in Java explained simply: insert at the beginning or the end
In this video, we explain the ArrayDeque dynamic structure in Java, also known as a double queue. You will learn how to insert elements at the beginning or end, remove them, and traverse the structure efficiently.
📌 What we'll cover in detail:
How to use ArrayDeque in Java SE
Inserting elements with offer, offerFirst, and offerLast
Retrieving elements without deleting them (peekFirst, peekLast)
Deleting elements (pollFirst, pollLast)
Traversing the structure from beginning to end and vice versa
Using Iterator and descendingIterator to display data without deleting it
Practical examples of queues and stacks in a single structure
🎯 This video is ideal for:
Understanding advanced dynamic structures in Java
Reinforcing OOP with practical examples
Preparing for exams or technical interviews
Applying ArrayDeque to real-world problems
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Episodes:
00:00 Introduction
00:38 How to create an ArrayDeque in Java
01:05 Adding elements with ArrayDeque in Java
01:58 Displaying an ArrayDeque in Java
02:27 Displaying the first and last element in Java with peekFirst and peekLast
03:04 Displaying the first and last element in Java with pollFirst and pollLast
04:30 Traversing a Java arraydeque from beginning to end
05:09 Traversing a Java arraydeque from end to beginning
05:50 Traversing a Java arraydeque from beginning to end with an iterator
06:38 Traversing a Java arraydeque from end to beginning with an iterator
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