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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Chapter 18.2, Problem 18.20CP
Explanation of Solution
LinkedList:
The “LinkedList” is the best choice to use when the user stores a large amount of data in the list, and performs lot of insertions or deletions in the middle of the list.
Explanation:
- In the linked list, each node in the list points to the next node.
- Linked list contains two fields named “data” and “next”.
- The “data” field contains the data (string or numbers)...
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Program Specification
For this assignment you will write a program to help people record the events of their day by supplying prompts and then saving their responses along with the question and the date to a file.
Functional Requirements
This program must contain the following features:
Write a new entry - Show the user a random prompt (from a list that you create), and save their response, the prompt, and the date as an Entry.
Display the journal - Iterate through all entries in the journal and display them to the screen.
Save the journal to a file - Prompt the user for a filename and then save the current journal (the complete list of entries) to that file location.
Load the journal from a file - Prompt the user for a filename and then load the journal (a complete list of entries) from that file. This should replace any entries currently stored the journal.
Provide a menu that allows the user choose these options
Your list of prompts must contain at least five different prompts.…
How to remove duplicate elements from a list?
def delete_item(...): """ param: info_list - a list from which to remove an item param: idx (str) - a string that is expected to contain an integer index of an item in the in_list param: start_idx (int) - an expected starting value for idx (default is 0); gets subtracted from idx for 0-based indexing
The function first checks if info_list is empty. The function then calls is_valid_index() to verify that the provided index idx is a valid positive index that can access an element from info_list. On success, the function saves the item from info_list and returns it after it is deleted from info_list.
returns: If info_list is empty, return 0. If is_valid_index() returns False, return -1. Otherwise, on success, the function returns the element that was just removed from info_list.
Helper functions: - is_valid_index() """
Chapter 18 Solutions
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
Ch. 18.1 - Prob. 18.1CPCh. 18.1 - What are the three general types of collections?Ch. 18.1 - Prob. 18.3CPCh. 18.1 - Prob. 18.4CPCh. 18.1 - Prob. 18.5CPCh. 18.1 - Prob. 18.6CPCh. 18.1 - Prob. 18.7CPCh. 18.2 - Prob. 18.8CPCh. 18.2 - Prob. 18.9CPCh. 18.2 - Prob. 18.10CP
Ch. 18.2 - Prob. 18.11CPCh. 18.2 - Prob. 18.12CPCh. 18.2 - Prob. 18.13CPCh. 18.2 - Prob. 18.14CPCh. 18.2 - Prob. 18.16CPCh. 18.2 - Prob. 18.17CPCh. 18.2 - Prob. 18.18CPCh. 18.2 - Prob. 18.20CPCh. 18.3 - Prob. 18.21CPCh. 18.3 - Prob. 18.22CPCh. 18.3 - Prob. 18.23CPCh. 18.3 - Prob. 18.24CPCh. 18.3 - Any time you override the Object classs equals...Ch. 18.3 - Prob. 18.26CPCh. 18.3 - Prob. 18.27CPCh. 18.3 - Prob. 18.28CPCh. 18.4 - Prob. 18.29CPCh. 18.4 - Prob. 18.31CPCh. 18.4 - Prob. 18.32CPCh. 18.6 - How do you define a stream of elements?Ch. 18.6 - How does a stream intermediate operation differ...Ch. 18.6 - Prob. 18.35CPCh. 18.6 - Prob. 18.36CPCh. 18.6 - Prob. 18.37CPCh. 18.6 - Prob. 18.38CPCh. 18.6 - Prob. 18.39CPCh. 18 - Prob. 1MCCh. 18 - Prob. 2MCCh. 18 - This type of collection is optimized for...Ch. 18 - Prob. 4MCCh. 18 - A terminal operation in a stream pipeline is also...Ch. 18 - Prob. 6MCCh. 18 - Prob. 7MCCh. 18 - This List Iterator method replaces an existing...Ch. 18 - Prob. 9MCCh. 18 - Prob. 10MCCh. 18 - This is an object that can compare two other...Ch. 18 - This class provides numerous static methods that...Ch. 18 - Prob. 13MCCh. 18 - Prob. 14MCCh. 18 - Prob. 15TFCh. 18 - Prob. 16TFCh. 18 - Prob. 17TFCh. 18 - Prob. 18TFCh. 18 - Prob. 19TFCh. 18 - Prob. 20TFCh. 18 - Prob. 21TFCh. 18 - Prob. 22TFCh. 18 - Prob. 1FTECh. 18 - Prob. 2FTECh. 18 - Prob. 3FTECh. 18 - Prob. 4FTECh. 18 - Write a statement that declares a List reference...Ch. 18 - Prob. 2AWCh. 18 - Assume that it references a newly created iterator...Ch. 18 - Prob. 4AWCh. 18 - Prob. 2SACh. 18 - Prob. 4SACh. 18 - Prob. 5SACh. 18 - Prob. 6SACh. 18 - How does the Java compiler process an enhanced for...Ch. 18 - Prob. 8SACh. 18 - Prob. 9SACh. 18 - Prob. 10SACh. 18 - Prob. 11SACh. 18 - Prob. 12SACh. 18 - Prob. 13SACh. 18 - Prob. 14SACh. 18 - Word Set Write an application that reads a line of...Ch. 18 - Prob. 3PCCh. 18 - Prob. 5PCCh. 18 - Prob. 8PC
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- Nearest smaller element def nearest_smaller(items): Given a list of integer items, create and return a new list of the same length but where each element has been replaced with the nearest element in the original list whose value is smaller. If no smaller elements exist because that element is the minimum of the original list, the element in the result list should remain as that same minimum element.If there exist smaller elements equidistant in both directions, you must resolve this by using the smaller of these two elements. This again makes the expected results unique for every possible value of items, which is necessary for the automated testing framework to work at all. Being permissive in what you accept while being restrictive in what you emit is a pretty good principle to follow in all walks of life, not just in programming. items Expected result [42, 42, 42] [42, 42, 42] [42, 1, 17] [1, 1, 1] [42, 17, 1] [17, 1, 1] [6, 9, 3, 2] [3, 3, 2, 2] [5, 2, 10, 1, 13, 15,…arrow_forwardWhat is the running time of inserting at the front of a list?arrow_forwardTrue/False 7. Items can be removed from a list with the del operatorarrow_forward
- After a tuple is created, its items can be changed. True False A tuple's items can be access by square brackets, similar to lists. True Falsearrow_forwardA c++ code that performs a search for a specific employee and returns the employee ID if found and 0 if not: int findEmployeeById(Employee list[], int size, int myId)arrow_forwardCreate a function called find_big_words . The function should accept a list as a parameter. Parts of the program which you are not coding will call the function and past it lists of words. The function must analyze the words in the list and return all the words which are 6 or more characters long. The returned list should be in alphabetical order. NB: Only write the function. Do not call it. For example: Test Result random_words1 = find_big_words(["nation", "night", "news", "negotiation", "newspaper", "nature"]) print(random_words1) ['negotiation', 'newspaper'] random_words3 = find_big_words(["examination","test", "testing", "quiz", "exam", "assessment"]) print(random_words3) ['assessment', 'examination', 'testing']arrow_forward
- Linked list consist of items such that each item could have different data type Select one: True Falsearrow_forwardThis list method adds an item to the end of an existing list.a. addb. add_toc. increased. appendarrow_forwardThis is a number that identifies an item in a list.a. elementb. indexc. bookmarkd. identifierarrow_forward
- Nearest smaller element def nearest_smaller(items): Given a list of integer itema, create and return a new list of the same length but where each element has been replaced with the nearest element in the original list whose value is smaller. If no smaller elements exist because that element is the minimum of the original list, the element in the result list should remain as that same minimum element. If there exist smaller elements equidistant in both directions, you must resolve this by using the smaller of these two elements. This again makes the expected results unique for every possible value of items, which is necessary for the automated testing framework to work at all. Being permissive in what yvou accept while being restrictive in what you emit is a pretty good principle to follow in all walks of life, not just in programming. Expected result items [42, 42, 421 [42, 42, 42] [42, 1, 17] (1, 1, 1] [42, 17, 1] [17, 1, 1] [6, 9, 3, 2] [3, 3, 2, 2] [5, 2, 10, 1, 13, 15, 14, 5, 11,…arrow_forwardcard_t * moveCardBack (card t *head); The moveCardBack function will take the card in front of the pile and place it in the back. In coding terms, you are taking the head of the linked list and moving it to the end. The function has one parameter which is the head of the linked list. After moving the card to the back, the function returns the new head of the linked list.arrow_forwardaddCourse: accepts an object of type Course as the first parameter and the idNum of the Student as the second parameter. The Course can be added only if the Student object with the specified idNum exists in the studentsList, Course does not exist in the coursesRegistered list for the Student, After adding the course, the number of credits, do not exceed 18. If the course is added successfully, return true, else return false.arrow_forward
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