9.5 Write a method of SinglyLinkedList, called reverse, that reverses the order of the elements in the list. This method should be destructive—it should modify the list upon which it acts. 9.6 Write a method of DoublyLinkedList, called reverse, that reverses the order of the elements in the list. This method should be destructive. 9.7 Write a method of CircularList, called reverse, that reverses the order of the element in the list. This method should be destructive.
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9.5 Write a method of SinglyLinkedList, called reverse, that reverses the
order of the elements in the list. This method should be destructive—it should
modify the list upon which it acts.
9.6 Write a method of DoublyLinkedList, called reverse, that reverses the
order of the elements in the list. This method should be destructive.
9.7 Write a method of CircularList, called reverse, that reverses the
order 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 wish
to 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 the
list in constant time? (Hint: What would happen if we mixed Nodes and
DoublyLinkedNodes?)
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- python 8.7 LAB: Writing append and search methods (singly-linked list)Given main.py and a Node class in Node.py, complete the LinkedList class in LinkedList.py by writing the append() and search() methods. The search() method should return the Node whose data value matches a given key, and None if the key is not found. The search() method should also set the position of each Node searched in the LinkedList, starting with 1. Ex: If the input is: 12 23 59 37 923 212the output is: 12 found in list at position 1.If the input is: 12 23 59 37 923 268the output is: 68 not found in list.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.2 //please write it in java This is a circular doubly linked list. It starts at the head pointer (Head). Write a function that adds a node (P) at the nth location away from the Head keeping the circle connected. For example, based on the image, the list is: C, D, B, A After calling addNthNode(Head, P, 2), the list becomes C, F, D, B, A Note that if the position is 1 then the Head should be updated. Your code should validate parameters, and handle edge cases. void addNthNode (Node Head, Node P, int position){ // your code goes here }
- (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.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 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…
- @6 The Reference-based Linked Lists: Select all of the following statements that are true. options: As a singly linked list's node references both its predecessor and its successor, it is easily possible to traverse such a list in both directions. According to the terminology introduced in class, the head reference variable in a singly linked list object references the list's first node. According to the terminology introduced in class, in a doubly linked list, each node references both the head and tail node. In a double-ended singly linked list, the tail reference variable provides access to the entire list. In a circular linked list, the last node references the first node.c)Define a class that implementsa singly linked list with the following methods, assuming that the first node of a linked list is referred to by head:i) A constructor.ii) searchNode that takes asparameter an integer value and returns a reference to the node with that value if it is found,and null otherwise. i)addlnOrder that allows insertion of a node to the linked list such that the list remainssorted in ascendingorder.iv) displayList which displays all the nodes in the linked list.d) Assuming that the class defined in part (c) aboveis used to implement a queueofpositive integers, define the following methods which can be used to implement queueoperations:i) isEmptythat returns true if the queue is empty andfalse otherwise.ii) pop that returns the value of the first node if the linked list is not empty,and -1 otherwise.iii) push that takes as parameteran integer value and adds it to the end of the queue.Need java help 1) If myList is a declared ADT list and the front of the list is on the left, show the contents of the list after applying the following pseudo code? myList.add("goat") myList.add(1, "fish") myList.add("cat") myList.remove(2) myList.add(3, "dog") myList.replace(2, "frog") a) horse frog dog cat b) fish frog dog cat c) horse fish frog dog d) frog horse dog fish 2) You can add a new entry in a list a) at the beginning b) at the end c) in between items d) all of the above
- 11.10 Write the compareTo method for a class that is to be ordered by a field,key, which is a double. Be careful: The result of compareTo must be an int.11.11 Write the compareTo method for a class describing a person whose nameis stored as two Strings: first and last. A person is “less than” another if theyappear before the other in a list alphabetized by last name and then first name(as is typical).13.14 LAB: Library book sorting Two sorted lists have been created, one implemented using a linked list (LinkedListLibrary linkedListLibrary) and the other implemented using the built-in ArrayList class (ArrayListLibrary arrayListLibrary). Each list contains 100 books (title, ISBN number, author), sorted in ascending order by ISBN number. Complete main() by inserting a new book into each list using the respective LinkedListLibrary and ArrayListLibrary insertSorted() methods and outputting the number of operations the computer must perform to insert the new book. Each insertSorted() returns the number of operations the computer performs. Ex: If the input is: The Catcher in the Rye 9787543321724 J.D. Salinger the output is: Number of linked list operations: 1 Number of ArrayList operations: 1 Which list do you think will require the most operations? Why?13.14 LAB: Library book sorting Two sorted lists have been created, one implemented using a linked list (LinkedListLibrary linkedListLibrary) and the other implemented using the built-in ArrayList class (ArrayListLibrary arrayListLibrary). Each list contains 100 books (title, ISBN number, author), sorted in ascending order by ISBN number. Complete main() by inserting a new book into each list using the respective LinkedListLibrary and ArrayListLibrary insertSorted() methods and outputting the number of operations the computer must perform to insert the new book. Each insertSorted() returns the number of operations the computer performs. Ex: If the input is: The Catcher in the Rye 9787543321724 J.D. Salinger the output is: Number of linked list operations: 1 Number of ArrayList operations: 1 Which list do you think will require the most operations? Why?…