The method: int indexOf(E target) of SingleLinkedList Class (A Searches for target and returns the position of the last occurrence, or null if it is not in the List (B Searches for target and returns the position of the first occurrence, or -1 if it is not in the List C Searches for target and returns the position of all the occurrences of the target, or -1 if it is not in the List

The method: int indexOf(E target) of SingleLinkedList Class (A Searches for target and returns the position of the last occurrence, or null if it is not in the List (B Searches for target and returns the position of the first occurrence, or -1 if it is not in the List C Searches for target and returns the position of all the occurrences of the target, or -1 if it is not in the List

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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1- A new static method with one parameter which is a head node for a linked list of integers, the method should create a new linked list which is equivalent to the original list of integers but with all repetitions removed, the method's return value is a head reference for the new list. this is what I have but it's not removing repetitions. public static IntLinkedBag removeRepetition (IntLinkedBag b1) { IntNode next; IntNode head = null; LinkedList<Integer> s = new LinkedList<>(); IntNode new_list = new IntNode(0, null); IntNode now = head; IntNode prev = new_list; while (now!= null) { int x = now.data; if (s.contains(x)) { new_list = new_list.next; } else { s.add(x); new_list.next = new IntNode(x, now); new_list = new_list.next; } now = now.next; } return b1; } }…
Given main() in the ShoppingList class, define an insertAtEnd() method in the ItemNode class that adds an element to the end of a linked list. DO NOT print the dummy head node. Ex. if the input is: 4 Kale Lettuce Carrots Peanuts where 4 is the number of items to be inserted; Kale, Lettuce, Carrots, Peanuts are the names of the items to be added at the end of the list. The output is: Kale Lettuce Carrots Peanuts public class ItemNode { private String item; private ItemNode nextNodeRef; // Reference to the next node public ItemNode() { item = ""; nextNodeRef = null; } // Constructor public ItemNode(String itemInit) { this.item = itemInit; this.nextNodeRef = null; } // Constructor public ItemNode(String itemInit, ItemNode nextLoc) {…
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
Design a method for the class myLinkedList named: insertSorted() which will add an element in the correct position in a sorted list eg list before{2,6,3,8,7} List after{2,3,6,7,8} Use the 4 steps design method(diagram,general,special cases and code) Java -LinkedLists
Create a SinglyLinkedList class method called reverse that reverses the order of the list's components. The list upon which it acts should be modified by this technique, which should be destructive.
java program java method: Write a method replace to be included in the class KWLinkedList (for doubly linked list) that accepts two parameters, searchItem and repItem of type E. The method searches for searchItem in the doubly linked list, if found then replace it with repItem and return true. If the searchItem is not found in the doubly linked list, then insert repItem at the end of the linked list and return false. Assume that the list is not empty. You can use ListIterator and its methods to search the searchItem in the list and replace it with repItem if found. Do not call any method of class KWLinkedList to add a new node at the end of the list. Method Heading: public boolean replace(E searchItem, E repItem) Example: searchItem: 15 repItem: 17 List (before method call): 9 10 15 20 4 5 6 List (after method call) : 9 10 17 20 4 5 6
java program : Given the following method to be considered within the SingleLinkedList class, what does this method do? public void Undefined() { Node<E> ptr = head; if (ptr == null || ptr.next == null) return false; E item1 = ptr.data; while (ptr.next != null) ptr = ptr.next; E item2 = ptr.data; if (item1.equals(item2)) { head = head.next; size--; } } If the first element of the list is equal to the second element of the list, then the method deletes the second node. If the first element of the list is equal to the last element of the list, then the method deletes the first node. If the first element of the list is equal to the second element of the list, then the method deletes the first node. If the first element of the list is equal to the last element of the list, then the method deletes the last node.
34Given that values is of type LLNode<Integer> and references a linked list (non-empty) of Integer objects, what does the following code do if invoked as mystery(values)? void mystery(LLNode<Integer> list){if (list != null){System.out.println(list.getInfo());mystery(list.getLink());}}Group of answer choicesprints the list from start to end.prints the first element on the list.prints the last element on the list.prints the list in reverse order.None of these is correct.
Given main.py and an IntNode class, complete the IntList class (a linked list of IntNodes) by writing the insert_in_descending_order() method to insert new IntNodes into the IntList in descending order. Ex. If the input is: 3 4 2 5 1 6 7 9 8 the output is: 9 8 7 6 5 4 3 2 1 main.py(can not edit) from IntNode import IntNodefrom IntList import IntList if __name__ == "__main__": int_list = IntList() input_line = input() input_strings = input_line.split(' ') for num_string in input_strings: # Convert from string to integer num = int(num_string) # Insert into linked list in descending order new_node = IntNode(num) int_list.insert_in_descending_order(new_node) int_list.print_int_list() IntNode.py(can not edit) class IntNode: def __init__(self, initial_data, next = None, prev = None): self.data = initial_data self.next = next self.prev = prev IntList.py(need to edit)
Given main.py and a PersonNode class, complete the PersonList class by writing find_first() and find_last() methods at the end of the PersonList.py file. The find_first() method should find the first occurrence of an age value in the linked list and return the corresponding node. Similarly, the find_last() method should find the last occurrence of the age value in the linked list and return the corresponding node. For both methods, if the age value is not found, None should be returned. The program will replace the name value of each found node with a new name. Ex. If the input is: Alex 23 Tom 41 Michelle 34 Vicky 23 -1 23 Connor 34 Michela main.py(can not edit) from PersonNode import PersonNodefrom PersonList import PersonList if __name__ == "__main__": person_list = PersonList() # Read input lines until encountering '-1' input_line = input() while input_line != '-1': split_input = input_line.split(' ') name = split_input[0] age =…
Java Given main() in the ShoppingList class, define an insertAtEnd() method in the ItemNode class that adds an element to the end of a linked list. DO NOT print the dummy head node. Ex. if the input is: 4 Kale Lettuce Carrots Peanuts where 4 is the number of items to be inserted; Kale, Lettuce, Carrots, Peanuts are the names of the items to be added at the end of the list. The output is: Kale Lettuce Carrots Peanuts Second image is ItemNode
9.5 Write a method of SinglyLinkedList, called reverse, that reverses theorder of the elements in the list. This method should be destructive—it shouldmodify the list upon which it acts.9.6 Write a method of DoublyLinkedList, called reverse, that reverses theorder of the elements in the list. This method should be destructive.9.7 Write a method of CircularList, called reverse, that reverses theorder of the element in the list. This method should be destructive.9.8 Each of the n references in a singly linked list are needed if we wishto remove the final element. In a doubly linked list, are each of the additional n previous references necessary if we want to remove the tail of thelist in constant time? (Hint: What would happen if we mixed Nodes andDoublyLinkedNodes?)