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  Tutorial: Minding the Queue: Java 1.5 Adds a New Data Structure Interface

One of the fundamental data structures in computer science is the queue. You will recall that a queue is a data structure in which elements are removed in the same order in which they were added. This FIFO (first in, first out) data structure was unfortun

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How We Managed In the Past Without Queues
Pre- Java 1.5, it was common practice to use a java.util.List collection to imitate a queue. The concept of a queue was emulated by objects being added (an operation commonly known as enqueuing) to the rear of the List (i.e., the rear of the queue) and removed (an operation commonly known as dequeuing) from the List by grabbing objects from the top of the List (i.e., the top of the queue). The code below shows what you might have done before


 

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Minding the Queue: Java 1.5 Adds a New Data Structure Interface

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