Given the following definition of a single linked list, write a method that calculates and returns the sum of even integers in a linked list.
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- Given the following definition for a LinkedList: // LinkedList.h class LinkedList { public: LinkedList(); // TODO: Implement me void printEveryOther() const; private: struct Node { int data; Node* next; }; Node * head; }; // LinkedList.cpp #include "LinkedList.h" LinkedList::LinkedList() { head = nullptr; } Implement the function printEveryOther, which prints every other data value (i.e. those at the odd indices assuming 0-based indexing).Given the interface of the Linked-List struct Node{ int data; Node* next = nullptr; }; class LinkedList{ private: Node* head; Node* tail; public: display_at(int pos) const; ... }; Write a definition for a method display_at. The method takes as a parameter integer that indicates the node's position which data you need to display. Example: list: 5 -> 8 -> 3 -> 10 display_at(1); // will display 5 display_at(4); // will display 10 void LinkedList::display_at(int pos) const{ // your code will go here }Write a code that will print the deleted number class LinkedList { static Node head; static class Node { int data; Node next; Node(int d) { data = d; next = null; } } void duplicateremove() { Node ptr1 = null, ptr2 = null, dup = null; ptr1 = head; while (ptr1 != null && ptr1.next != null) { ptr2 = ptr1; while (ptr2.next != null) { if (ptr1.data == ptr2.next.data) { ptr2.next = ptr2.next.next; System.gc(); } else { ptr2 = ptr2.next; } } ptr1 = ptr1.next; } } void printList(Node node) { while (node != null) { System.out.print(node.data + " "); node = node.next; } } public static void main(String[] args) { LinkedList list = new LinkedList();…
- class Node{int data;Node next;public Node (int d) {this(d,null);} public Node (int d,Node n) {data=d;next=n;}}public class List {private Node head; public List() {head=null;}public void addBegenning(int d) {Node n= new Node(d);if (head==null) {head=n;}else {n.next=head;head=n;}}public void addEnd(int d) {if (head==null) {head=new Node(d);}else {Node tmp=head;while(tmp.next!=null)tmp=tmp.next;tmp.next=new Node(d);} }public String toString() {Node tmp=head;String ans="";while(tmp!=null) {ans+=tmp.data+"-->";tmp=tmp.next;}return ans;}public void deleteBegging() {if (head!=null) {head=head.next;}}public void deleteEnd() {Node tmp=head;Node prev= null;while(tmp.next!=null) {prev=tmp;tmp=tmp.next;}prev.next=null;} public boolean contains(int d) {Node tmp=head;while (tmp!=null) {if (tmp.data==d)return true;tmp=tmp.next;}return false; }public void Remove(int d) {//if the d not exsist Node tmp=head;Node prev= null;while (tmp.data!=d) {// tmp!=null…public class Node extends Object { public T data; public Node next; public Node () { data = null; next = null; } public Node (T val) { data = val; next = null; }} public class LinkList extends Object { private Node head; private Node current; public LinkList () { head = current = null; } public boolean empty () { return head == null; } What does the following code do? public Node remove() { if(empty()) return nul%; Node temp, c; C = head; while(c.next ! null) { temp = c; C = c.Next; } temp.next = null; size--; return c; }public class Node extends Object { public T data; public Node next; public Node () { data = null; next = null; } public Node (T val) { data = val; next = null; }} public class LinkList extends Object { private Node head; private Node current; public LinkList (){ head = current = null; } public boolean empty () { return head == null; } What does the fpllowing code do? public Node remove() { if (empty()) return null; Node temp,c; c = head; while(c.next != null) temp = c; c = c.Next; } temp.next = null; size--; return c;
- package hw5; public class LinkedIntSet {private static class Node {private int data;private Node next; public Node(int data, Node next) {this.data = data;this.next = next;}} private Node first; // Always points to the first node of the list.// THE LIST IS ALWAYS IN SORTED ORDER!private int size; // Always equal to the number of elements in the set. /*** Construts an empty set.*/public LinkedIntSet() {throw new RuntimeException("Not implemented");} /*** Returns the number of elements in the set.* * @return the number of elements in the set.*/public int size() {throw new RuntimeException("Not implemented");} /*** Tests if the set contains a number* * @param i the number to check* @return <code>true</code> if the number is in the set and <code>false</code>* otherwise.*/public boolean contains(int i) {throw new RuntimeException("Not implemented");} /*** Adds <code>element</code> to this set if it is not already present and* returns…starter code: in java pls and thank you! public class LinkedList { private Node head; private Node tail; public void add(String item) { Node newItem = new Node(item); // handles the case where the new item // is the only thing in the list if (head == null) { head = newItem; tail = newItem; return; } tail.next = newItem; tail = newItem; } public void print() { Node current = head; while (current != null) { System.out.println(current.item); current = current.next; } } public void printWithSkips() { // TODO your code here } class Node { String item; Node next; public Node(String item) { this.item = item; this.next = null; } } } and public class Driver { public static void…Given the following definition of a single linked list, write a method that calculates and returns the sum of even integers in a linked list. public class SLL<E> { private static class Node<E>{ private E data; private Node<E> next; private Node(E dataItem) { data = dataItem; next = null; } private Node(E dataItem, Node<E> nodeRef) { data = dataItem; next = nodeRef; } } private Node<E> head = null; private int size = 0; }
- package circularlinkedlist;import java.util.Iterator; public class CircularLinkedList<E> implements Iterable<E> { // Your variablesNode<E> head;Node<E> tail;int size; // BE SURE TO KEEP TRACK OF THE SIZE // implement this constructorpublic CircularLinkedList() {} // I highly recommend using this helper method// Return Node<E> found at the specified index// be sure to handle out of bounds casesprivate Node<E> getNode(int index ) { return null;} // attach a node to the end of the listpublic boolean add(E item) {this.add(size,item);return false; } // Cases to handle// out of bounds// adding to empty list// adding to front// adding to "end"// adding anywhere else// REMEMBER TO INCREMENT THE SIZEpublic void add(int index, E item){ } // remove must handle the following cases// out of bounds// removing the only thing in the list// removing the first thing in the list (need to adjust the last thing in the list to point to the beginning)// removing the last…Consider a linked list whose nodes are objects of the class Node: class Node { public int data; public Node next; } prev references a node n1 in the list and curr references the node n2 that is right after n1 in the list. Which of the following statements is used to delete the node n2? prev.next = curr; curr.next = prev; Oprev = curr.next; prev.next = curr.next; curr.next = prev.next;Implement a class for Circular Doubly Linked List (with a dummy header node) which stores integers in unsorted order. Your class definitions should look like as shown below:class CDLinkedList;class DNode {friend class CDLinkedList;private int data;private DNode next;private DNode prev;};class CDLinkedList {private:DNode head; // Dummy header nodepublic CDLinkedList(); // Default constructorpublic bool insert (int val); //Inserts val at end into the linked list.Time complexity:O(1)public bool removeSecondLastValue ();//Note: Remove the Second last val from the linked list. Time complexity: O(1)public void findMiddleValue(); // find middle value of the linklist and delete it.public void display(); // Displays the contents of linked list on screen …};