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- 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 ItemNodeApart from the main list in the list above, elements with the same value are also linked. According to this; a) Write the Generic Node class. b) Write the method that adds a new element to the end of the list. JAVA CODEJAVA 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:
- 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) {…Apart from the main list in the list above, elements with the same value are also linked. According to this; a) Write the Generic Node class. b) Write the method that adds a new element to the end of the list.Java Given main() in the Inventory class, define an insertAtFront() method in the InventoryNode class that inserts items at the front of a linked list (after the dummy head node).
- 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 6Hello. 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() {…For the following code, indicate the weighted edge values. List<WeightedEdge> list = new ArrayList<>();list.add(new WeightedEdge(1, 2, 3.5));list.add(new WeightedEdge(2, 3, 4.5));WeightedEdge e = java.util.Collections.max(list);e.u = e.v = e.weight =
- Part2: LinkedList implementation 1. Create a linked list of type String Not Object and name it as StudentName. 2. Add the following values to linked list above Jack Omar Jason. 3. Use addFirst to add the student Mary. 4. Use addLast to add the student Emily. 5. Print linked list using System.out.println(). 6. Print the size of the linked list. 7. Use removeLast. 8. Print the linked list using for loop for (String anobject: StudentName){…..} 9. Print the linked list using Iterator class. 10. Does linked list hava capacity function? 11. Create another linked list of type String Not Object and name it as TransferStudent. 12. Add the following values to TransferStudent linked list Sara Walter. 13. Add the content of linked list TransferStudent to the end of the linked list StudentName 14. Print StudentName. 15. Print TransferStudent. 16. What is the shortcoming of using Linked List?Suppose that you want an operation for the ADT list that adds an array of items to the end of the list. The header of the method could be as follows: public void addAll( T[ ] items) Write an implementation of this method for the class LinearLinkedListHow 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): """…