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What is a Queue in DSA? A queue is a linear data structure that holds elements in a certain order. It accesses items using the FIFO (First In First Out) method. It can only be changed by adding data entities at one end or removing data entities at the other. The end where insertion occurs is known as the Rear, while the end where deletion occurs is known as the Front. This ordering guarantees that components are processed […]
May 26, 2023 | Data Structure | No comments
The Deque interface in java.util package is a queue interface subtype. A linear collection with the ability to insert and remove elements at both ends. Deque is an abbreviation for “double-ended queue” and is usually pronounced “deck.” It can function as either a queue (first-in-first-out/FIFO) or a stack (last-in-first-out/LIFO). Declaration: Methods of Deque interface: Method […]
September 17, 2022 | Java | No comments
The Queue interface extends the Collection interface and is present in java.util package is used to hold the elements about to be processed in FIFO (First In First Out) order. It is an ordered list of objects that can only be used to insert elements at the end of the list and delete elements from […]
September 16, 2022 | Java | No comments