EBK STARTING OUT W/JAVA:...DATA...
4th Edition
ISBN: 9780134757179
Author: GADDIS
Publisher: PEARSON CO
expand_more
expand_more
format_list_bulleted
Concept explainers
Expert Solution & Answer
Chapter 19, Problem 5FTE
Explanation of Solution
Purpose of the given code:
The given code is used to remove the last node from a nonempty doubly linked list “myList”.
Given code:
/* The reference last points to the last node in a nonempty doubly linked list. Remove the last node from the list */
last = last.prev;
Error in the given code:
First, user needs to check if the list is nonempty, and also have to undo the removed node, and then set the next reference of the new last node to null.
/* If the last node is equal to "null", then */
if (last == null)
/* Set "first" to "null" */
first = null;
//Otherwise
else
{
/* Set the reference "prev" of last node to "null" */
last.next.prev = null;
/* Set next node of last to "null" */
last.next = null;
}
Corrected code:
/* The reference last points to the last node in a nonempty doubly linked list...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Multiple choice in data structures
void doo(node<int>*root){
if(root !=0) { node<int>*p=root;
while(root->next!=0) root=root->next;
p->data=root->data;
}
What is this code do?
a.
swap the first item with the last item in the linked list
b.
set the first item in the linked list as the last item
c.
doesn't do anything because the root parameter is passed by value
d.
change the root item in the binary tree with the farthest leaf item
It is a to the next node in the linked list, which is the property after it in the Node class.
With Head node or not?
statement is: if(p->rlink != first) p = p->rlink;
O a. It is a Doubly linked list without Head node.
O b. It is a Doubly linked list with Head node.
Chapter 19 Solutions
EBK STARTING OUT W/JAVA:...DATA...
Ch. 19.1 - Prob. 19.1CPCh. 19.1 - Prob. 19.2CPCh. 19.3 - Prob. 19.4CPCh. 19 - A list is a collection that _____. a. associates...Ch. 19 - Prob. 2MCCh. 19 - Prob. 3MCCh. 19 - Prob. 4MCCh. 19 - Prob. 5MCCh. 19 - Prob. 6MCCh. 19 - Prob. 7MC
Ch. 19 - Prob. 11TFCh. 19 - Prob. 12TFCh. 19 - Prob. 13TFCh. 19 - Prob. 14TFCh. 19 - Prob. 15TFCh. 19 - Prob. 16TFCh. 19 - Prob. 17TFCh. 19 - Prob. 18TFCh. 19 - Prob. 19TFCh. 19 - Prob. 20TFCh. 19 - Prob. 1FTECh. 19 - Prob. 2FTECh. 19 - Prob. 3FTECh. 19 - Prob. 4FTECh. 19 - Prob. 5FTECh. 19 - Prob. 1AWCh. 19 - Prob. 2AWCh. 19 - Prob. 3AWCh. 19 - Prob. 4AWCh. 19 - Prob. 3SACh. 19 - Prob. 4SACh. 19 - Prob. 5SACh. 19 - Consult the online Java documentation and...Ch. 19 - Prob. 1PCCh. 19 - Prob. 2PC
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- When removing a node from a linked list, what are the two steps?arrow_forwardCircular linked list is a form of the linked list data structure where all nodes are connected as in a circle, which means there is no NULL at the end. Circular lists are generally used in applications which needs to go around the list repeatedly. struct Node * insertTONull (struct Node *last, int data) // This function is only for empty list 11 5 15 struct Node insertStart (struct Node +last, int data) In this question, you are going to implement the insert functions of a circular linked list in C. The Node struct, print function and the main function with its output is given below: struct Node { int data; struct Node *next; }; struct Node insertEnd (struct Node *last, int data) void print(struct Node *tailNode) struct Node *p; if (tailNode -- NULL) struct Node * insertSubseq (struct Node *last, int data, int item) puts("Empty"); return; p - tailNode → next; do{ printf("%d ",p→data); p - p > next; while(p !- tailNode →next); void main(void) { struct Node *tailNode - NULL; tailNode -…arrow_forwardstruct node{ int a; struct node * nextptr; }; Write two functions. One for inserting new values to a link list that uses the given node structure. void insert(struct node **head, int value); Second function is called to count the number of even numbers in the link list. It returns an integer that represents the number of even numbers. int countEvenNumbers(struct node *head); Write a C program that reads a number of integers from the user and insert those integers into a link list (use insert function). Later pass the head pointer of this link list to a function called countEvenNumbers. This function counts and returns the number of even numbers in the list. The returned value will be printed on the screen. Note 1: Do not modify the function prototypes. Sample Input1: Sample Output1: 45 23 44 12 37 98 33 35 -1 3 Sample Input2: Sample Output2: 11 33 44 21 22 99 123 122 124 77 -1 4arrow_forward
- True or FalseA Circular Linked List has a special method called revolve() that shall move the tail reference to the previous node.arrow_forwardstruct remove_from_front_of_dll { // Function takes no parameters, removes the book at the front of a doubly // linked list, and returns nothing. void operator()(const Book& unused) { //// TO-DO (13) |||| // Write the lines of code to remove the book at the front of "my_dll", // // Remember, attempting to remove an element from an empty data structure is // a logic error. Include code to avoid that. ///// END-TO-DO (13) //// } std::list& my_dll; };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_forward
- With Head node or not? statement is: if(first->llink == first) output << "List is empty"; O a. It is a Doubly linked list without Head node. O b. It is a Doubly linked list with Head node.arrow_forwardstruct insert_at_back_of_dll { // Function takes a constant Book as a parameter, inserts that book at the // back of a doubly linked list, and returns nothing. void operator()(const Book& book) { / // TO-DO (2) |||| // Write the lines of code to insert "book" at the back of "my_dll". // // // END-TO-DO (2) ||| } std::list& my_dll; };arrow_forwardThe definition of linked list is given as follows: struct Node { ElementType Element ; struct Node *Next ; } ; typedef struct Node *PtrToNode, *List, *Position; If L is head pointer of a linked list, then the data type of L should be ??arrow_forward
- 3. void insert (Node newElement) or def insert(self, newElement) (4) Pre-condition: None. Post-condition: This method inserts newElement at the tail of the list. If an element with the same key as newElement already exists in the list, then it concludes the key already exists and does not insert the key.arrow_forward08. Problem Title: "Add Two Numbers" Problem Description: You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order, and each of their nodes contains a single digit. Add the two numbers and return the sum as a linked list. You may assume the two numbers do not contain any leading zero, except the number 0 itself.08.arrow_forwardstruct insert_at_back_of_sll { // Function takes a constant Book as a parameter, inserts that book at the // back of a singly linked list, and returns nothing. void operator()(const Book& book) { /// TO-DO (3) /// // Write the lines of code to insert "book" at the back of "my_sll". Since // the SLL has no size() function and no tail pointer, you must walk the // list looking for the last node. // // HINT: Do not attempt to insert after "my_sll.end()". // ///// END-T0-DO (3) ||||// } std::forward_list& my_sll; };arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education