Question 1: In this question, you are provided with the class Node that contains a data field (double) and a link field. You are asked to create the class LinkedList with the following instance variables, constructors, and methods: • A private Node instance variable called m first. • A private int instance variable called m numItems. • A constructor that initializes m first to null and numItems to zero. A method called isEmpty to check if the list is empty. • A method called insert to add a new node to a specified position. For example ifinsert (2, 15.5) is invoked on the following linked list: m first 11.5 20.3- 8.7 then the new linked list after the insertion will look like this: m first 11.5 20.3 15.5 8.7 • Your implement should check if the list is empty. • You can create a variable to track the current node, and a variable to track the previous node. • Increment the m numItems every time a node has been inserted to the list. • A method called avg to traverse the list containing double values and return the average. • A method called toString to print every item in the list. • Build a test driver by creating the class TestLinkedList to test the functionality of the class LinkedList. Sample Output: The content of the list is: 27.3 25.5 2.9 1.23 110.4 Average: 33.465999999999994

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question 1: In this question, you are provided with the class Node that contains a data field
(double) and a link field. You are asked to create the class LinkedList with the following
instance variables, constructors, and methods:
• A private Node instance variable called m first.
• A private int instance variable called m numItems.
A constructor that initializes m first to null and numItems to zero.
A method called isEmpty to check if the list is empty.
• A method called insert to add a new node to a specified position.
For example ifinsert (2, 15.5) is invoked on the following linked list:
m first
11.5
20.3-
8.7
then the new linked list after the insertion will look like this:
m first
11.5
20.3
15.5
8.7
• Your implement should check if the list is empty.
• You can create a variable to track the current node, and a variable to track the previous
node.
• Increment the m numItems every time a node has been inserted to the list.
• A method called avg to traverse the list containing double values and return the average.
A method called toString to print every item in the list.
• Build a test driver by creating the class TestLinkedList to test the functionality of the
class LinkedList.
Sample Output:
The content of the list is:
27.3 25.5 2.9 1.23 110.4
Average: 33.465999999999994
Transcribed Image Text:Question 1: In this question, you are provided with the class Node that contains a data field (double) and a link field. You are asked to create the class LinkedList with the following instance variables, constructors, and methods: • A private Node instance variable called m first. • A private int instance variable called m numItems. A constructor that initializes m first to null and numItems to zero. A method called isEmpty to check if the list is empty. • A method called insert to add a new node to a specified position. For example ifinsert (2, 15.5) is invoked on the following linked list: m first 11.5 20.3- 8.7 then the new linked list after the insertion will look like this: m first 11.5 20.3 15.5 8.7 • Your implement should check if the list is empty. • You can create a variable to track the current node, and a variable to track the previous node. • Increment the m numItems every time a node has been inserted to the list. • A method called avg to traverse the list containing double values and return the average. A method called toString to print every item in the list. • Build a test driver by creating the class TestLinkedList to test the functionality of the class LinkedList. Sample Output: The content of the list is: 27.3 25.5 2.9 1.23 110.4 Average: 33.465999999999994
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