Given the class SinglyLinkedtist add method colled oountDuplcates that returme the number of duplicates in a st (You can assume that youur list contains sorted values) publie olass inglylinkedList( private ListNode head private static class ListNode ( private int data Can be a generic type private ListNode next Reference to next ListNode in list publie LisINode(int data) ( this.data data this.next nul;

Given the class SinglyLinkedtist add method colled oountDuplcates that returme the number of duplicates in a st (You can assume that youur list contains sorted values) publie olass inglylinkedList( private ListNode head private static class ListNode ( private int data Can be a generic type private ListNode next Reference to next ListNode in list publie LisINode(int data) ( this.data data this.next nul;

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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Given the MileageTrackerNode class, complete main() in the MileageTrackerLinkedList class to insert nodes into a linked list (using the insertAfter() method). The first user-input value is the number of nodes in the linked list. Use the printNodeData() method to print the entire linked list. DO NOT print the dummy head node. Ex. If the input is: 3 2.2 7/2/18 3.2 7/7/18 4.5 7/16/18 the output is: 2.2, 7/2/18 3.2, 7/7/18 4.5, 7/16/18 public class MileageTrackerNode { private double miles; // Node data     private String date; // Node data private MileageTrackerNode nextNodeRef; // Reference to the next node public MileageTrackerNode() { miles = 0.0; date = ""; nextNodeRef = null; } // Constructor     public MileageTrackerNode(double milesInit, String dateInit) { this.miles =…
How to get insert method to accept two values? Right now it accepts one, and ignores the other. class Node:     """ Represents a node in a linked list """     def __init__(self, data):         self.data = data           self.next = None            class LinkedList:     """ A linked list implementation of the List ADT """     def __init__(self):         self._head = None             def add(self, val):         """ Adds a node containing val to the linked list """         self._head = self.rec_add(self._head, val)              def rec_add(self, a_node, val):         """ Adds a node containing val to the linked list """         if a_node is None:             return Node(val)         else:             a_node.next = self.rec_add(a_node.next, val)             return a_node     def insert(self, val, pos):         """ Adds a node containing val to the linked list """         self._head = self.insert_add(self._head, val, pos)              def insert_add(self, a_node, val, pos):         """…
Write a method called deleteMultipleNodes to be included in the class KWLinkedList (class for doubly linked list). The method has two parameters count of type int and direction of type char. The count is the number of nodes to be deleted in the specified direction. The direction can be either ‘f’ or ‘b’. The method returns false, if the list is empty or the number of nodes in the list is less than count. The method checks the direction, if direction is ‘f’, the method removes count number of nodes in the forward direction, otherwise, the method removes count number of nodes in the backward direction, and returns true. NOTE: You can use ListIterator and its methods.       Example 1: Before run:                     head                                    tail    list:     20   50    70   90    33    89    count: 2       direction: ’f’ After run:                     head                  tail    list:     70    90     33     89          Example 2: Before run:…
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
Write a method called removeLeastNumber in the class WLinkedList (a class for doubly linked list as discussed in the lectures). The method will search for the smallest integer in the double linked list and removes the node that contains that value. Assume that the list must contain at least two nodes. Assume further that the smallest value never be in the first node. Do not use Iterators and you are not allowed to call any of the KWLinkedList class methods. Method heading: public void removeLeastValue() Example: list (before method call): 7 10 2 3 5 3 9 list (after method call): 7 10 3 5 3 9
Write a method called removeLeastValue in the class KWLinkedList (a class for doubly linked list as discussed in the lectures). The method will search for the smallest value in the double linked list of integers and removes the node that contains that value. Assume that the list must contain at least two nodes. Assume further that the smallest value never be in the first node. Do not use Iterators and you are not allowed to call any of the KWLinkedList class methods. Example: Iist (before method call): 7 10 2 3 5 3 9 Iist (after method call): 7 10 3 5 3 9 Method heading: public void removeLeastValue()
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) {…
Implement a lastIndex method for the LinkedIntList class you worked on for HW4. This method takes an int argument and returns the largest index such that the int argument appears at that index in the list. If the int argument does not appear in the list, then -1 is returned. For example if the list example contained the numbers [4, -1, 2, 7, -1, 3] in that order, then example.lastIndex(-1) should return 4 and example.lastIndex(5) should return -1. In the text area below, write the definition of the lastIndex method. (In other words, write the code that should replace the //TODO comment.) Your code cannot call any methods. public class LinkedIntList { private class Node { private int item; private Node next; public Node() {} public Node(int number, Node nextNode) { item = number; next = nextNode; } } private Node first; // first node of the list public LinkedIntList() { first = null;…
JAVA please 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 Code provided in the assignment ItemNode.java:
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; } }…
Write the following method that partitions the list using thefirst element, called a pivot:public static int partition(int[] list)After the partition, the elements in the list are rearranged so all the elements beforethe pivot are less than or equal to the pivot, and the elements after the pivot aregreater than the pivot. The method returns the index where the pivot is located inthe new list. For example, suppose the list is {5, 2, 9, 3, 6, 8}. After the partition,the list becomes {3, 2, 5, 9, 6, 8}. Implement the method in a way that takes atmost list.length comparisons. See liveexample.pearsoncmg.com/dsanimation/QuickSortNeweBook.html for an animation of the implementation. Write atest program that prompts the user to enter the size of the list and the contents ofthe list and displays the list after the partition. Here is a sample run. Enter list size: 8 ↵EnterEnter list content: 10 1 5 16 61 9 11 1 ↵EnterAfter the partition, the list is 9 1 5 1 10 61 11 16
Given two linked lists sorted in increasing order, write a method intersection( ) to return a new list representing the intersection of the two lists. The new list should be made with its own memory — the original lists should not be changed. Example: if list1 contains {3,4,7,9,11} and list contains {2,3,8,9,12,15} so the intersection list3 is {3,9}.