Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
4th Edition
ISBN: 9780134787961
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
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Expert Solution & Answer
Chapter 20, Problem 1MC
Program Description Answer
A Queue is a linear data structure in which items are accessed first-in-first-out fashion.
Hence, the correct answer is option “B”.
Expert Solution & Answer
Explanation of Solution
Queue:
- Queue is a linear data structure used to store a set of data.
- Queue is the collection of data which are accessed in FIFO (first-in-first-out) order for performing operations on it.
- Queue is opened at both the ends. One end to insert the items into the queue and the other end is to remove the items from the queue.
- There are two basic operations on queue data structure,
- enqueue() – add an item to queue.
- dequeue() – remove an item from the queue.
- Queue does not have fixed size.
Explanation for incorrect options:
A. Stack
A stack is used to store set of data that are accessed in last-in-first-out order.
Hence, option “A” is wrong.
C. Linked list
A linked list is a collection of data items. This stored item is accessed in random order for doing operations on it.
Hence, option “C” is wrong.
D. Array based collection
An array based collection (simply array) used to store set of items. Each stored item is accessed using array index or key.
Hence, option “D” is wrong.
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Students have asked these similar questions
Question 1
If N represents the number of elements in the collection, then the add method of the SortedArrayCollection class is O(N).
True
False
Question 2
If N represents the number of elements in the list, then the index-based remove method of the ABList class is O(N).
True
False
Question 3
The add method of our Collection ADT might throw the CollectionOverflowException.
True
False
Question 4
A list allows retrieval of information based on the size of the information.
True
False
Question 5
Our CollectionInterface defines a single constructor.
True
False
Question 6
Our lists allow null elements.
True
False
Question 7
Even though our collections will be generic, our CollectionInterface is not generic.
True
False
Question 8
Our lists are unbounded.
True
False
Question 9
If N represents the number of elements in the collection, then the contains method of the ArrayCollection class is O(N).
True
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Question 10
Our lists allow duplicate elements.
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is an
ordered set which consists of
fixed number of Elements.
a. Queue
O b. Array
O c. List
o d. Stack
QueueArray.java This file implements QueueInterface.java This file has * attributes of an array holding queue elements. An integer represents front * index, an integer for rear index, and an integer to keep track number of * elements in the queue. An overloaded constructor accepts an integer for * initializing the queue size, e.g. array size. An enqueue method receives an * object and place the object into the queue. The enqueue method will throw * exception with message "Overflow" when the queue is full. A dequeue method * returns and removes an object from front of the queue. The dequeue method * will throw exception with message "Underflow" when the queue is empty. A size * method returns number of elements in the queue. A toString method returns a * String showing size and all elements in the queue.
Chapter 20 Solutions
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
Ch. 20.3 - Prob. 20.1CPCh. 20.3 - Prob. 20.2CPCh. 20.3 - Prob. 20.4CPCh. 20.3 - Prob. 20.5CPCh. 20.6 - Prob. 20.6CPCh. 20.6 - Prob. 20.7CPCh. 20.6 - Prob. 20.8CPCh. 20.6 - Prob. 20.9CPCh. 20 - Prob. 1MCCh. 20 - Prob. 2MC
Ch. 20 - Prob. 3MCCh. 20 - The concept of seniority, which some employers use...Ch. 20 - Prob. 5MCCh. 20 - Prob. 6MCCh. 20 - Prob. 8TFCh. 20 - Prob. 9TFCh. 20 - Prob. 10TFCh. 20 - Prob. 1FTECh. 20 - Prob. 2FTECh. 20 - Prob. 3FTECh. 20 - Prob. 4FTECh. 20 - Prob. 5FTECh. 20 - Prob. 1AWCh. 20 - Prob. 2AWCh. 20 - Suppose that you have two stacks but no queues....Ch. 20 - Prob. 1SACh. 20 - Prob. 2SACh. 20 - Prob. 3SACh. 20 - Prob. 4SACh. 20 - Prob. 5SACh. 20 - Prob. 6SA
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