: Write a method/programme that will take a generic linked list and make a palindrome of the list. In a seperate test programme the user can add any elements to the generic list and then this list must be made a palindrome. The output should be the original list with the palindrome list added to this list.
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Java: Write a method/programme that will take a generic linked list and make a palindrome of the list.
In a seperate test programme the user can add any elements to the generic list and then this list must be made a palindrome.
The output should be the original list with the palindrome list added to this list.
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- Write the following method in Java: public void reverse() The method will reverse the linked list. Head will point to the last node of the linked list and all the pointers (addresses) will be reversed. The last node (a new head) will point to the second last node and so on. The old head node will become the tail node in the reversed LinkedList. Use the LinkedList class discussed in the video lecture and write the reverse() method in the same class. Test your method in the main method. Following picture depicts the reversal of the LinkedList. NULL Head I V R I ↑ Head > NULLGiven a ListItem class, complete main() using the built-in LinkedList type to create a linked list called shoppingList. The program should read items from input (ending with -1), adding each item to shoppingList, and output each item in shoppingList using the printNodeData() method. Ex. If the input is: milk bread eggs waffles cereal -1 the output is: milk bread eggs waffles cereal ListItem.java (read only) public class ListItem {private String item; public ListItem() {item = "";} public ListItem(String itemInit) {this.item = itemInit;} // Print this node public void printNodeData() {System.out.println(this.item);}} ShoppingList.java import java.util.Scanner;import java.util.LinkedList; public class ShoppingList {public static void main (String[] args) {Scanner scnr = new Scanner(System.in); // TODO: Declare a LinkedList called shoppingList of type ListItem String item;// TODO: Scan inputs (items) and add them to the shoppingList LinkedList// Read inputs until a -1 is input// TODO:…Given a ListItem class, complete main() using the built-in LinkedList type to create a linked list called shoppingList. The program should read items from input (ending with -1), adding each item to shoppingList, and output each item in shoppingList using the printNodeData() method. Ex. If the input is: milk bread eggs waffles cereal -1 the output is: milk bread eggs waffles cereal ShoppingList.java import java.util.Scanner;import java.util.LinkedList; public class ShoppingList {public static void main (String[] args) {Scanner scnr = new Scanner(System.in); // TODO: Declare a LinkedList called shoppingList of type ListItem String item;// TODO: Scan inputs (items) and add them to the shoppingList LinkedList// Read inputs until a -1 is input// TODO: Print the shoppingList LinkedList using the printNodeData() method }} ListItem.java public class ListItem {private String item; public ListItem() {item = "";} public ListItem(String itemInit) {this.item = itemInit;} // Print this node…
- Create a Java program that collects 3 animal types from the user, stores them to an Linked List andthen outputs/displays the contents of the Linked List to the user after the third animal type isentered. (Capturing data, use of a loop, use of a linked list, 3 animal types, stringvalue).Write a method and test it to insert an array of elements at index in a single linked list and then display this list. The method receives this array by parameters. write. java programmingin java Write a method for the Linked Based List class which returns the largest item in the list. If the list is empty return null. Assume that class T is Comparable.DO NOT USE ANY OTHER METHODS OF THE LINKED BASED LIST CLASS. What is the worst case and best case complexity of the code in the previous problem? Explain your answer.
- In Java: Modify the attached program code below According to the question a, b and c a. Replace the appendNode() method by an insertNode() method which inserts the new node in such a way to keep the list always sorted in increasing order. b. Add a recursive method displayReverse() which displays the list in reverse order. c. Do the needed changes to the main()in order to reflect the above two changes. public class DoublyLinkedList { private Node head;private Node tail;private int size; DoublyLinkedList() {tail = head = null;size = 0;} public void addNode(String item) {//adding a node at the endNode newNode = new Node(item);if(head == null) {head = tail = newNode;}else {newNode.prev = tail;tail.next = newNode;tail = newNode;}size++;} public boolean remove(String item) {Node current = head;boolean found = false;while((current != null)&&(!found)) {if(current.element.equals(item))found = true;elsecurrent = current.next;}if(found){if(current == head) head =…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)a. Write a class called hyprid that uses linked lists to represent a queue and stack. As you can recall that the only difference in between the stack and the queue is that the stack uses the addHead method to push items and the queue uses the addTail method to insert items. The class should be implemented using LinkedLists. The class should contain the following methods: a. boolean empty() to check if the underlying list is empty b. void push(int item) to add the item using addFirst c. void insert (int item) to add the item using addLast d. int remove() to remove an item from the beginning of the list e. int pop() the same as above but with name changed
- Using java, write an easier version of a linked list with only a couple of the normal linked list functions and the ability to generate and utilize a list of ints. The data type of the connection to the following node can be just Node, and the data element can be just an int. You will need a reference like (Java) or either a reference to the first node, as well as one to the last node. (Answer the following questions) 1) Create a method or function that accepts an integer, constructs a node with that integer as its data value, and then includes the node to the end of the list. If the new node is the first one, this function will also need to update the reference to the first node. This function will need to update the reference to the final node. Consider how to insert the new node following the previous last node, and keep in mind that the next reference for the list's last node should be null. 2) Create a different method or function that iteratively explores the list, printing…*in java* A contact list is a place where you can store a specific contact with other associated information such as a phone number, email address, birthday, etc. Write a program that first takes as input an integer N that represents the number of word pairs in the list to follow. Word pairs consist of a name and a phone number (both strings), separated by a comma. That list is followed by a name, and your program should output the phone number associated with that name. Assume that the list will always contain less than 20 word pairs. Ex: If the input is: 3 Joe,123-5432 Linda,983-4123 Frank,867-5309 Frank the output is: 867-5309 Your program must define and call the following method. The return value of getPhoneNumber() is the phone number associated with the specific contact name.public static String getPhoneNumber(String[] nameArr, String[] phoneNumberArr, String contactName, int arraySize) Hint: Use two arrays: One for the string names, and the other for the string phone numbers.…Java Program Consider a class Student that has an attribute age and a method getAge(): StudentList is a class representing a linkedlist of students. Write sumListAge_lterative......), a method that computes and returns the sum of the ages of all students in the list using the iterative way. Parameters of the method should be specified accordingly