Assume the following method is added to the ArrayQueue class. What does this method do?public void undefined(){ if(size < 2) return; if(size == capacity) reallocate(); rear = (rear + 1)%capacity; int f = (front + 1)%capacity; theData[rear] = theData[f]; size++;} Makes the front as rear and the rear as front, if the number of elements in the queue is at least 2. Adds the front element of the queue at the rear of the queue, if the number of elements in the queue is at least 2. Adds the second element of the queue at the rear of the queue, if the number of elements in the queue is at least 2. Exchanges the first and the last elements of the queue, if the number of elements in the queue is at least 2. Assume the following method is added to the ArrayQueue class. What does this method do?public void undefined(){if(size < 2) return;if(sizeсараcity)==reallocate();rear = (rear + 1)%capacity;int f = (front + 1)%capacity;theData[rear] = theData[f];size++;}Makes the front as rear and the rear as front, if the number of elements in the queue is at leastA2.Adds the front element of the queue at the rear of the queue, if the number of elements in thequeue is at least 2.Adds the second element of the queue at the rear of the queue, if the number of elements in thequeue is at least 2.Exchanges the first and the last elements of the queue, if the number of elements in the queueDis at least 2

We have a code of queue, we have asked working of the code. In queue, we have mainly 2 operations…

Answered: Assume the following method is added to…

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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Assume the following method is added to the ArrayQueue class. What does this method do?

public void undefined()

{

if(size < 2) return;

if(size == capacity)

reallocate();

rear = (rear + 1)%capacity;

int f = (front + 1)%capacity;

theData[rear] = theData[f];

size++;

}

Makes the front as rear and the rear as front, if the number of elements in the queue is at least 2.
Adds the front element of the queue at the rear of the queue, if the number of elements in the queue is at least 2.
Adds the second element of the queue at the rear of the queue, if the number of elements in the queue is at least 2.
Exchanges the first and the last elements of the queue, if the number of elements in the queue is at least 2.

Assume the following method is added to the ArrayQueue class. What does this method do?
public void undefined()
{
if(size < 2) return;
if(size
сараcity)
==
reallocate();
rear = (rear + 1)%capacity;
int f = (front + 1)%capacity;
theData[rear] = theData[f];
size++;
}
Makes the front as rear and the rear as front, if the number of elements in the queue is at least
A
2.
Adds the front element of the queue at the rear of the queue, if the number of elements in the
queue is at least 2.
Adds the second element of the queue at the rear of the queue, if the number of elements in the
queue is at least 2.
Exchanges the first and the last elements of the queue, if the number of elements in the queue
D
is at least 2

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