Given the doubly linked list data structure discussed in the lecture, implement a subclass “DuplicateManipuationList” that has a new function for removing duplicates from a list.
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Given the doubly linked list data structure discussed in the lecture, implement a subclass “DuplicateManipuationList” that has a new function for removing duplicates from
a list.
- Add a new method to your DuplicateManipuationList called removeDuplicates(…). The
method takes as an argument called ListToRemove that is a singly linked list that
contains some values. The method should scan the linked list for each member of the
ListToRemove, and remove all occurrences (not only the duplicates) of that member.
Besides updating the DuplicateManipulationList, the removeDuplicates(…) function
should return a new list that shows the number of duplicates for each deleted member.
Note:
That with inheritance:
- You have a parent class called “Node” that contain [data, *next, *prev] and a sub class
called “DuplicateManipuationList”
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- Hello. Please add a toString() function to the Java class implementation of the singly-linked list which returns the contents of the singly-linked list. Also, does Java have a built-in class that implements singly-linked lists? Thank you. public class SinglyLinkedList<E>{ private static class Node<E> { private E element; private Node<E> next; public Node(E e, Node<E> n) { element = e; next = n; } public E getElement() { return element;} public Node<E> getNext() { return next;} public void setNext(Node<E> n) { next = n;} } private Node<E> head = null; private Node<E> tail = null; private int size = 0; public SinglyLinkedList() {} public int size() { return size;} public boolean isEmpty() { return size == 0;} public E first() { if(isEmpty()) return null; return head.getElement(); } public E last() {…(Implement a doubly linked list) The MyLinkedList class used in Listing 24.6 is a one-way directional linked list that enables one-way traversal of the list. Modify the Node class to add the new data field name previous to refer to the previous node in the list, as follows:public class Node<E> { E element; Node<E> next; Node<E> previous;public Node(E e) { element = e; } }Implement a new class named TwoWayLinkedList that uses a doubly linked list to store elements. The MyLinkedList class in the text extends MyAbstractList. Define TwoWayLinkedList to extend the java.util.AbstractSequentialList class. You need to implement all the methods defined in MyLinkedList as well as the methods listIterator() and listIterator(int index). Both return an instance of java.util. ListIterator<E>. The former sets the cursor to the head of the list and the latter to the element at the specified index.Create a DeleteDuplicatesclass which consists of a deleteDuplicates method which takes the nums list as its parameter. Implement the deleteDuplicates method: Check if the input list is null or empty, and return an empty list if so. Initialize a pointer i to keep track of the unique elements. Use a for loop to Iterate through the list using another pointer j which starts at j=1 and goes until j=nums.size(); If the current element at j is not equal to the previous element at i using !nums.get(i).equals(nums.get(j), increment i and set the current element at j to the new position at i using nums.set(i, nums.get(j)). After the for loop ends, return the sublist from the beginning to i + 1, as this will contain all unique elements. Call the deleteDuplicates method with the sample list as argument: Call the deleteDuplicates method and pass the nums list as argument Store the result in a variable result Print the result to the console. Input: [1, 1, 2, 3, 3,…
- Implement a simple linked list in Python (Write source code and show output) with basic linked list operations like: (a) create a sequence of nodes and construct a linear linked list. (b) insert a new node in the linked list. (b) delete a particular node in the linked list. (c) modify the linear linked list into a circular linked list. Use this template: class Node:def __init__(self, val=None):self.val = valself.next = Noneclass LinkedList:"""TODO: Remove the "pass" statements and implement each methodAdd any methods if necessaryDON'T use a builtin list to keep all your nodes."""def __init__(self):self.head = None # The head of your list, don't change its name. It shouldbe "None" when the list is empty.def append(self, num): # append num to the tail of the listpassdef insert(self, index, num): # insert num into the given indexpassdef delete(self, index): # remove the node at the given index and return the deleted value as an integerpassdef circularize(self): # Make your list circular.…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 6In this task, a skip list data structure should be implemented. You can follow the followinginstructions:- Implement the class NodeSkipList with two components, namely key node and arrayof successors. You can also add a constructor, but you do not need to add anymethod.- In the class SkipList implement a constructor SkipList(long maxNodes). The parameter maxNodes determines the maximal number of nodes that can be added to askip list. Using this parameter we can determine the maximal height of a node, thatis, the maximal length of the array of successors. As the maximal height of a nodeit is usually taken the logarithm of the parameter. Further, it is useful to constructboth sentinels of maximal height.- In the class SkipList it is useful to write a method which simulates coin flip andreturns the number of all tosses until the first head comes up. This number representsthe height of a node to be inserted.- In the class SkipList implement the following methods:(i) insert, which accepts…
- 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 6Implement a program that creates an unsorted list by using a linked list implemented by yourself. NOT allowed to use LinkedList class or any other classes that offers list functions. It is REQUIRED to use an ItemType class and a NodeType struct to solve this. Use C++! The “data.txt” file has three lines of data 100, 110, 120, 130, 140, 150, 160 100, 130, 160 1@0, 2@3, 3@END You need to create an empty unsorted list add the numbers from the first line to list using putItem() function. Then print all the current keys to command line in one line using printAll(). delete the numbers given by the second line in the list by using deleteItem() function. Then print all the current keys to command line in one line using printAll().. putItem () the numbers in the third line of the data file to the corresponding location in The list. For example, 1@0 means adding number 1 at position 0 of the list. Then print all the current keys to command line in one line…Implement a member method for the List ADT called removeDuplicates(). The method removes every duplicate from the list such that there is only ONE copy of each element in the list. The method also returns the number of copies it removed. For example, if L = {Joe, Bob, Joe, Ned, Bob, Ron, Ron}, a call to L.removeDuplicates modifies the list such that L = {Joe, Bob, Ned, Ron} and returns 3. import java.util.Iterator;import java.util.NoSuchElementException; public class Mock1ListWrapper { public static interface List<E> extends Iterable<E> { public int size(); public boolean isEmpty(); public boolean isMember(E e); public int firstIndexOf(E e); public int lastIndexOf(E e); public void add(E e); public void add(E e, int position); public E get(int position); public E remove(int position); public E replace(int position, E newElement); public void clear(); public Object[] toArray(); public int removeDuplicates(); } @SuppressWarnings("unchecked") public static…
- Implement a Single linked list to store a set of Integer numbers (no duplicate) • Instance variable• Constructor• Accessor and Update methods 3. Define TestSLinkedList Classa. Declare an instance of the Single List class.b. Test all the methods of the Single List class.Write a Java class myLinkedList to simulate a singly linked list using arrays as the underlying structure. Include the following methods: 1. insert an element within the linked list.(this should also work for the front and the rear of the list) 2. Remove an element from the linked list 3. Display (print) the elements of the linked list in order. 4. A method to check if the list is "empty". Test your solution using a linked list that initially has the characters A, B, D, E, F, and G. Insert "C" between B and D. Remove element "F". [Hint: One solution (recommended) is to use 2 arrays. One for the data, and the other for the "next" pointer. Also, consider using dummy nodes for the front, and possibly the rear of the list] Extend the solution so that it simulates a doubly linked list! (hint: You will need a third array to represent the "backward" pointers)Implement a Doubly linked list to store a set of Integer numbers (no duplicate) • Instance variable• Constructor• Accessor and Update methods 3. Define TestDLinkedList Classa. Declare an instance of Doubly List class. b. Test all the methods of Doubly List class.