Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
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Expert Solution & Answer
Chapter 12.3, Problem 17STQ
Explanation of Solution
Changes need for Listing 12.1:
- User need to change the import statement “import java.util.ArrayList;” to “import java.util.LinkedList;”
- Then there is a need to make a change in invoking constructor.
- That is change “LinkedList<String> toDoList = new LinkedList<String>();” to “LinkedList<String> toDoList = new LinkedList<String>();”.
Modified code from Listing 12.1:
The modified code for Listing 12.1 is given below:
//Import required package
import java.util.LinkedList;
import java.util.Scanner;
//Define "ArrayListDemo" class
public class ArrayListDemo
{
//Define main function
public static void main(String[] args)
{
/* Create an object for "LinkedList" class */
LinkedList<String> toDoList = new LinkedList<String>();
/* Display prompt statement */
System.out.println("Enter items for the list, when prompted.");
/* Assign variable "done" to "false" */
boolean done = false;
/* Create object for "Scanner" class */
Scanner keyboard = new Scanner(System...
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Chapter 12 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 12.1 - Suppose aList is an object of the class...Ch. 12.1 - Prob. 2STQCh. 12.1 - Prob. 3STQCh. 12.1 - Prob. 4STQCh. 12.1 - Can you use the method add to insert an element at...Ch. 12.1 - Prob. 6STQCh. 12.1 - Prob. 7STQCh. 12.1 - If you create a list using the statement...Ch. 12.1 - Prob. 9STQCh. 12.1 - Prob. 11STQ
Ch. 12.1 - Prob. 12STQCh. 12.2 - Prob. 13STQCh. 12.2 - Prob. 14STQCh. 12.2 - Prob. 15STQCh. 12.2 - Prob. 16STQCh. 12.3 - Prob. 17STQCh. 12.3 - Prob. 18STQCh. 12.3 - Prob. 19STQCh. 12.3 - Write a definition of a method isEmpty for the...Ch. 12.3 - Prob. 21STQCh. 12.3 - Prob. 22STQCh. 12.3 - Prob. 23STQCh. 12.3 - Prob. 24STQCh. 12.3 - Redefine the method getDataAtCurrent in...Ch. 12.3 - Repeat Question 25 for the method...Ch. 12.3 - Repeat Question 25 for the method...Ch. 12.3 - Repeat Question 25 for the method...Ch. 12.4 - Revise the definition of the class ListNode in...Ch. 12.4 - Prob. 30STQCh. 12.5 - What is the purpose of the FXML file?Ch. 12.5 - Prob. 32STQCh. 12 - Repeat Exercise 2 in Chapter 7, but use an...Ch. 12 - Prob. 2ECh. 12 - Prob. 3ECh. 12 - Repeat Exercises 6 and 7 in Chapter 7, but use an...Ch. 12 - Write a static method removeDuplicates...Ch. 12 - Write a static method...Ch. 12 - Write a program that will read sentences from a...Ch. 12 - Repeat Exercise 12 in Chapter 7, but use an...Ch. 12 - Write a program that will read a text file that...Ch. 12 - Revise the class StringLinkedList in Listing 12.5...Ch. 12 - Prob. 12ECh. 12 - Write some code that will use an iterator to...Ch. 12 - Prob. 14ECh. 12 - Write some code that will use an iterator to...Ch. 12 - Prob. 17ECh. 12 - Revise the method selectionSort within the class...Ch. 12 - Repeat the previous practice program, but instead...Ch. 12 - Repeat Practice Program 1, but instead write a...Ch. 12 - Write a program that allows the user to enter an...Ch. 12 - Write a program that uses a HashMap to compute a...Ch. 12 - Write a program that creates Pet objects from data...Ch. 12 - Repeat the previous programming project, but sort...Ch. 12 - Repeat the previous programming project, but read...Ch. 12 - Prob. 9PPCh. 12 - Prob. 10PPCh. 12 - Prob. 11PPCh. 12 - Prob. 12PPCh. 12 - Prob. 13PPCh. 12 - Prob. 14PPCh. 12 - Prob. 15PP
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Similar questions
- Which methods do ArrayList and LinkedList have that are not defined in the List interface? Why do you think that these methods are not included in List?arrow_forwardWhat are wrapper classes and why are they useful for ArrayLists? Include examples of autoboxing and unboxing.arrow_forwardHow can you tell whether the performance of an ArrayList is satisfactory?arrow_forward
- Which methods from the List interface are not supported by ArrayList and LinkedList? Explain why you think such methods aren't a part of List.arrow_forwardIn our demo program, we compared the efficiency of ArrayList and LinkedList byadding a number of items to beginning of these two kinds of lists. Which kind of list(ArrayList or LinkedList) takes less time to add? Briefly explain why is that? Youmay draw diagrams to explain.arrow_forwardExplain briefly how generics make ArrayList more flexible.arrow_forward
- What are the similarities and differences between a -HashSet and an ArrayList? Use the descriptions of Set, HashSet, List, and -ArrayList in the library documentation to find out, because HashSet is a -special case of a Set, and ArrayList is a special case of a Listarrow_forwardHow do you evaluate the performance of an ArrayList?arrow_forwardWhat are wrapper classes and why are they useful for ArrayLists? In your answer, include examples of autoboxing and unboxingarrow_forward
- For both ArrayList and LinkedList, which methods do not exist in the List interface? Just why do you think these methods are left out the List?arrow_forwardWhat are the two ways to remove duplicates from ArrayList?arrow_forwardplease follow instructions correctly. You are required to complete the LinkedList class. This class is used as a linked list that has many methods to perform operations on the linked list. To create a linked list, create an object of this class and use the addFirst or addLast or add(must be completed) to add nodes to this linked list. Your job is to complete the empty methods. For every method you have to complete, you are provided with a header, Do not modify those headers(method name, return type or parameters). You have to complete the body of the method. package chapter02; public class LinkedList { protected LLNode list; public LinkedList() { list = null; } public void addFirst(T info) { LLNode node = new LLNode(info); node.setLink(list); list = node; } public void addLast(T info) { LLNode curr = list; LLNode newNode = new LLNode(info); if(curr == null) { list = newNode; } else…arrow_forward
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