Java data structure question You may refer to the Floating Front Design algorithm (discussed in Queue and in code) for this problem where both front and back are array indices from 0 toarray.size()-1. Q is an initially empty circular array-based QUEUE of size 8. After each statement on left has been evaluated, please enter the resulting values of thefront and back on right (HINT: please refrain from guessing based on intuition and, instead, reference code in your Queue lecture for insight):ArrayQueue Q = new ArrayQueue (8);front =; back =Q.enqueue("P");front =; back =char x =Q.dequeue();front =; back =Q.enqueue("C");front =; backQ.enqueue("c");front =; back =Q.enqueue("C");front =; back =Q.peek();front =; back =Q.dequeue();front =; back =

Detail explanation is given below. Enqueue happens from back so back increases and dequeue happens…

You may refer to the Floating Front Design algorithm (discussed in Queue and in code) for this problem where both front and back are array indices array.size()-1. Q is an initially empty circular array-based QUEUE of size 8. After each statement on left has been evaluated, please enter the result front and back on right (HINT: please refrain from guessing based on intuition and, instead, reference code in your Queue lecture for insight): ArrayQueue Q - new ArrayQueue (8); front = ; back = Q. enqueue("P"); front= : back = char x = Q. dequeue(); front = ; back = Q. enqueue("C"); front = : back = Q. enqueue("c"); front = ; back = Q. enqueue("C");) front = : back = Q. peek(); front = ; back = Q.dequeue(); | front = ; back =

You may refer to the Floating Front Design algorithm (discussed in Queue and in code) for this problem where both front and back are array indices array.size()-1. Q is an initially empty circular array-based QUEUE of size 8. After each statement on left has been evaluated, please enter the result front and back on right (HINT: please refrain from guessing based on intuition and, instead, reference code in your Queue lecture for insight): ArrayQueue Q - new ArrayQueue (8); front = ; back = Q. enqueue("P"); front= : back = char x = Q. dequeue(); front = ; back = Q. enqueue("C"); front = : back = Q. enqueue("c"); front = ; back = Q. enqueue("C");) front = : back = Q. peek(); front = ; back = Q.dequeue(); | front = ; back =

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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4) Given that a queue is being represented by the following circular representation in an array (front is currently 4 and back is currently 7): array component: 0 1 2 4 5 6 7 8 | | | | 37 | 41 | 12 | 34 | | a) Show what this representation would like after the following sequence of operations are performed: deq(q, i); deq(q, j); enq(q, 81); enq(q, 72); enq(q, 38); deq(q, k); (indicate the current position of front and back for each operation) b) What is an advantage of this implementation of a queue? c) What is a disadvantage of this implementation of a queue?
The circular array queue implementation increased the dequeue operation's performance from O(n) to O(1) by doing away with the requirement to move array items. Adding or removing members from a list can occur anywhere along its length, not simply at the front or back, thus this is not true.
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