Complete Java SE 8 Developer Bootcamp - Deques

The video tutorial explains the concept of a deque, short for double-ended queue, which allows elements to be inserted and removed from both ends. It covers the operations available for deques, including adding, removing, and examining elements at both the head and tail. The tutorial also discusses two implementations: one that throws exceptions and another that returns special values if operations fail. An example of an ArrayDeque is provided, highlighting its characteristics, such as no size limit and lack of thread safety, and demonstrating various operations like adding and removing elements.

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