Web Reference: The name deque is short for "double ended queue" and is usually pronounced "deck". Most Deque implementations place no fixed limits on the number of elements they may contain, but this interface supports capacity-restricted deques as well as those with no fixed size limit. Jul 23, 2025 · In Java, you can use the Deque interface to implement a stack data structure. A Deque as "double-ended queue" and it provides methods to add and remove the elements from both ends. The Java Stack class implements the stack data structure. Java 1.6 introduced the Dequeinterface, which is for implementing a “double-ended queue” that supports element insertion and removal at both ends. Now, we can use the Deque interface as a LIFO (Last-In-First-Out) stack as well. Moreover, if we have a look at the Javadoc of the Stack class, w...
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