Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
3rd Edition
ISBN: 9780134038179
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
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Chapter 20, Problem 3FTE
Explanation of Solution
Purpose of the given code:
The given code is used to add a node to the beginning of a doubly linked list “myList”.
Given code:
//Add an element "Abraham" to beginning of list "myList"
myList = new Node("Abraham", myList, null);
Error in the given code:
User need to set the “prev” reference of the second node. So, user needs to add below line to the given code:
/* If next node of "myList" is not equal to "null", then */
if (myList.next != null)
/* Set the reference of second node to "myList" */
myList.next...
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Students have asked these similar questions
T/F: All Linked Lists must have head node.
The following method is defined within a linked list class. What does it do?
void MyList::doSomething() { Node* p = head;
while (p) { cout << p->value << " "; p = p->next; }}
Group of answer choices
inserts a node into linked list
deletes a node from linked list
displays contents of linked list
destroys the entire linked list
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.
Chapter 20 Solutions
Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
Ch. 20.1 - Prob. 20.1CPCh. 20.1 - Prob. 20.2CPCh. 20.3 - Prob. 20.4CPCh. 20 - A list is a collection that _____. a. associates...Ch. 20 - Prob. 2MCCh. 20 - Prob. 3MCCh. 20 - Prob. 4MCCh. 20 - Prob. 5MCCh. 20 - Prob. 6MCCh. 20 - Prob. 7MC
Ch. 20 - Prob. 11TFCh. 20 - Prob. 12TFCh. 20 - Prob. 13TFCh. 20 - Prob. 14TFCh. 20 - Prob. 15TFCh. 20 - Prob. 16TFCh. 20 - Prob. 17TFCh. 20 - Prob. 18TFCh. 20 - Prob. 29TFCh. 20 - Prob. 20TFCh. 20 - Prob. 1FTECh. 20 - Prob. 2FTECh. 20 - Prob. 3FTECh. 20 - Prob. 4FTECh. 20 - Prob. 5FTECh. 20 - Prob. 1AWCh. 20 - Prob. 2AWCh. 20 - Prob. 3AWCh. 20 - Prob. 4AWCh. 20 - Prob. 3SACh. 20 - Prob. 4SACh. 20 - Prob. 5SACh. 20 - Consult the online Java documentation and...Ch. 20 - Prob. 1PCCh. 20 - Prob. 2PC
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- True or FalseA Circular Linked List has a special method called revolve() that shall move the tail reference to the previous node.arrow_forwardWhat does the following function do for a given Linked List? void fun1(struct node* head){if(head == NULL)return;fun1(head->next);printf("%d ", head->data);}arrow_forwardComplete the //comments and TODOs in c++ #include "LinkedList.h" using namespace std; // Add a new node to the list void LinkedList::insert(Node* prev, int newKey){ //Check if head is Null i.e list is empty if(head == NULL){ head = newNode; head->key = newKey; head->next = NULL; } // if list is not empty, look for prev and append our node there elseif(prev == NULL) { Node* newNode = newNode; newNode->key = newKey; newNode->next = head; head = newNode; } else{ Node* newNode = newNode; newNode->key = newKey; newNode->next = prev->next; prev->next = newNode; } } // TODO: SILVER PROBLEM // Delete node at a particular index bool LinkedList::deleteAtIndex(int n) { boolisDeleted = false; if(head == NULL){ cout<<"List is already empty"<<endl; returnisDeleted; } // Special case to delete the head if (n == 0) { //TODO } Node *pres = head; Node *prev = NULL; // TODO returnisDeleted; } // TODO: GOLD PROBLEM // Swap the first and last nodes (don't…arrow_forward
- When removing a node from a linked list, what are the two steps?arrow_forwardPART B: Write your code Write a code for a linked-list with the following node: number1 number2 а. Insert input b. Insert a new number 1 and number 2 at the beginning of linked listarrow_forwardApart from the main list in the list above, elements with the same value are also linked. According to this; a) Write the Generic Node class. b) Write the method that adds a new element to the end of the list.arrow_forward
- Complete the following function where a node is perculated through a MaxHeap when given the value of the parent node (through the use of a linked list) void BinMaxHeap::percolateUp(BHNode *p) { }arrow_forwardIn Java, a linked list always terminates with a node that is null. True O Falsearrow_forwardMultiple 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 itemarrow_forward
- Write pseudocode for the insertBefore(p,e) method for a doubly linked list. The doubly linked list uses sentinel nodes.p indicates the node to insert before, e indicates the element to be inserted.arrow_forwardIn a program that uses several linked lists, what might eventually happen if the class destructor does not destroy its linked list?arrow_forwardJava language Write a method to insert an array of elements at index in a single linked list and then display this list. The method receives this array by parametersarrow_forward
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