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If N represents the number of elements in the queue, then the enqueue method of the ArrayBoundedQueue class is O(N). true or false

If N represents the number of elements in the queue, then the enqueue method of the ArrayBoundedQueue class is O(N). true or false

Database System Concepts
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
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If N represents the number of elements in the queue, then the enqueue method of the ArrayBoundedQueue class is O(N).

true or false

 
```java public class ArrayBoundedQueue<T> implements QueueInterface<T> { protected final int DEFCAP = 100; // default capacity protected T[] elements; // array that holds queue elements protected int numElements = 0; // number of elements in this queue protected int front = 0; // index of front of queue protected int rear; // index of rear of queue public ArrayBoundedQueue() { elements = (T[]) new Object[DEFCAP]; rear = DEFCAP - 1; } public ArrayBoundedQueue(int maxSize) { elements = (T[]) new Object[maxSize]; rear = maxSize - 1; } public void enqueue(T element) // Throws QueueOverflowException if this queue is full; // otherwise, adds element to the rear of this queue. { if (isFull()) throw new QueueOverflowException("Enqueue attempted on a full queue."); else { rear = (rear + 1) % elements.length; elements[rear] = element; numElements = numElements + 1; } } public T dequeue() // Throws QueueUnderflowException if this queue is empty; // otherwise, removes front element from this queue and returns it. { if (isEmpty()) throw new QueueUnderflowException("Dequeue attempted on empty queue."); else { T toReturn = elements[front]; elements[front] = null; front = (front + 1) % elements.length; numElements = numElements - 1; return toReturn; } } public boolean isEmpty() // Returns true if this queue is empty; otherwise, returns false. { return (numElements == 0); } public boolean isFull() // Returns true if this queue is full; otherwise, returns false. { return (numElements == elements.length); } public int size() // Returns the number of elements in this queue. { return numElements; } } ``` This code represents an implementation of a generic `ArrayBoundedQueue` class, which is a type of data structure known as a queue. The queue elements are stored in an array and are designed
Transcribed Image Text:```java public class ArrayBoundedQueue<T> implements QueueInterface<T> { protected final int DEFCAP = 100; // default capacity protected T[] elements; // array that holds queue elements protected int numElements = 0; // number of elements in this queue protected int front = 0; // index of front of queue protected int rear; // index of rear of queue public ArrayBoundedQueue() { elements = (T[]) new Object[DEFCAP]; rear = DEFCAP - 1; } public ArrayBoundedQueue(int maxSize) { elements = (T[]) new Object[maxSize]; rear = maxSize - 1; } public void enqueue(T element) // Throws QueueOverflowException if this queue is full; // otherwise, adds element to the rear of this queue. { if (isFull()) throw new QueueOverflowException("Enqueue attempted on a full queue."); else { rear = (rear + 1) % elements.length; elements[rear] = element; numElements = numElements + 1; } } public T dequeue() // Throws QueueUnderflowException if this queue is empty; // otherwise, removes front element from this queue and returns it. { if (isEmpty()) throw new QueueUnderflowException("Dequeue attempted on empty queue."); else { T toReturn = elements[front]; elements[front] = null; front = (front + 1) % elements.length; numElements = numElements - 1; return toReturn; } } public boolean isEmpty() // Returns true if this queue is empty; otherwise, returns false. { return (numElements == 0); } public boolean isFull() // Returns true if this queue is full; otherwise, returns false. { return (numElements == elements.length); } public int size() // Returns the number of elements in this queue. { return numElements; } } ``` This code represents an implementation of a generic `ArrayBoundedQueue` class, which is a type of data structure known as a queue. The queue elements are stored in an array and are designed
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