tAltnus vojetty private Node head; private Node current; public LinkList () { head null:} public boolean empty () { return head == null; } = current = What does the following code do? public Node remove() { if (empty()) return null; Node temp,c; c = head; while (c.next != null) temp = c; Next; } C = temp.next = null; size--; return c; a. Remove the First element in the list O b. Remove the last element in the list O C. Remove the second element in the list O d. Remove the element before the last element in the list
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- 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; }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…
- class LinkedList { Node head; Node tail; Node findNodeWithData(int data); void addDataAfterNode(int data, Node noderef); } class Node {private int data; private Node next;public void setNextNode(data); public Node getNextNode(); }2. What JUnit test cases will you create for the LinkedList class: a. void findNodeWithData(int data); b. addDataAfterNode();3. Write your JUnit test case for testing the two methods aboveimport edu.princeton.cs.algs4.StdOut; public class LinkedIntListR { // helper linked list node class private class Node { private int item; private Node next; public Node(int item, Node next) { this.item = item; this.next = next; } } private Node first; // first node of the list public LinkedIntListR() { first = null; } public LinkedIntListR(int[] data) { for (int i = data.length - 1; i >= 0; i--) first = new Node(data[i], first); } public void addFirst(int data) { first = new Node(data, first); } public void printList() { if (first == null) { StdOut.println("[]"); } else if (first.next == null) { StdOut.println("[" + first.item + "]"); } else { StdOut.print("[" + first.item); for(Node ptr = first.next; ptr != null; ptr = ptr.next) StdOut.print(", " + ptr.item); StdOut.println("]"); } } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; LinkedIntListR other =…import edu.princeton.cs.algs4.StdOut; public class LinkedIntListR { // helper linked list node class private class Node { private int item; private Node next; public Node(int item, Node next) { this.item = item; this.next = next; } } private Node first; // first node of the list public LinkedIntListR() { first = null; } public LinkedIntListR(int[] data) { for (int i = data.length - 1; i >= 0; i--) first = new Node(data[i], first); } public void addFirst(int data) { first = new Node(data, first); } public void printList() { if (first == null) { StdOut.println("[]"); } else if (first.next == null) { StdOut.println("[" + first.item + "]"); } else { StdOut.print("[" + first.item); for(Node ptr = first.next; ptr != null; ptr = ptr.next) StdOut.print(", " + ptr.item); StdOut.println("]"); } } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; LinkedIntListR other =…
- package chapter04.queues; public class LinkedQueue { protected PersonNode front; protected PersonNode rear; protected int numElements; public LinkedQueue() { front = null; rear = null; numElements = 0; } public void enqueue(T fName, T lName, T sNum) { //Complete this method as required in the homework instructions. } public T dequeue() { //Complete this method as required in the homework instructions. } public void peekFront() { //Complete this method as required in the homework instructions. } public boolean contains(T lookFor) { //Complete this method as required in the homework instructions. } public void display() { //Complete this method as required in the homework instructions. } public int size() { return numElements; } public boolean isFull() { return false; } public boolean isEmpty() { return…write search function for this coded class TreeNode {private: int data; TreeNode* left; TreeNode* right; public: TreeNode(); TreeNode(int); //getters and setters void setData(int); void setLeft(TreeNode*); void setRight(TreeNode*); int getData(); TreeNode* getLeft(); TreeNode* getRight();}; #include"Node.h"class BST {private: TreeNode* root; public: BST(); void insert(int); bool isEmpty(); void search(int); TreeNode* findPlace(int);}; #include"BST.h"#include<iostream>using namespace std; TreeNode::TreeNode() { data = -1; left = NULL; right = NULL;}TreeNode::TreeNode(int data) { this->data = data;}void TreeNode::setData(int data) { this->data = data;}void TreeNode::setLeft(TreeNode* left) { this->left = left;}void TreeNode::setRight(TreeNode* right) { this->right = right;} int TreeNode::getData() { return data;}TreeNode* TreeNode::getLeft() { return…package chapter04.queues; public class LinkedQueue { protected PersonNode front; protected PersonNode rear; protected int numElements; public LinkedQueue() { front = null; rear = null; numElements = 0; } public void enqueue(T fName, T lName, T sNum) { //Complete this method as required in the homework instructions. } public T dequeue() { //Complete this method as required in the homework instructions. } public void peekFront() { //Complete this method as required in the homework instructions. } public boolean contains(T lookFor) { //Complete this method as required in the homework instructions. } public void display() { //Complete this method as required in the homework instructions. } public int size() { return numElements; } public boolean isFull() { return false; } public boolean isEmpty() { return…
- import java.util.NoSuchElementException; class LinkedList { private Node head; private Node tail; private class Node { private int value; private Node next; public Node(int value) { this.value = value; } } private boolean isEmpty() { return (head == null); } private boolean hasNext(Node node) { return (node.next != null); } public void print() { Node current = head; System.out.print("["); while (current != null) { if (hasNext(current)) { System.out.print(current.value + "' "); } else { System.out.print(current.value); } current = current.next; }…package psa.naloga1;public class Binarno {private NodeBinarno root;public boolean insert(int element){if(search(element)){return false;}root=insertNode(root,element);return true;}private NodeBinarno insertNode(NodeBinarno node,int element){if(node==null){NodeBinarno insertedNode=new NodeBinarno(element);return insertedNode;}if(element<node.getKey()){node.setLeftChild(insertNode(node.getLeftChild(),element));}else if(element>node.getKey()){node.setRightChild(insertNode(node.getRightChild(),element));}return node;}private NodeBinarno deleteNode(NodeBinarno node,int element){if (node==null){return node;}if(element<node.getKey()){node.setLeftChild(deleteNode(node.getLeftChild(), element));} else if (element > node.getKey()) {node.setRightChild(deleteNode(node.getRightChild(),element));}else{if(node.getLeftChild()==null){return node.getRightChild();}else if(node.getRightChild()==null){return…What does the below code do? public class Node<T> { private T data; private Node<T> node; public Node(T data) { this.data = data; } public Node<T> getNode() { return node; } public void setNode(Node<T> node) { this.node = node; } public T getData() { return data; } public void setData(T data) { this.data = data; } @Override public String toString() { return data+" "; } @Override public int hCode() { final int pm = 31; int res = 1; res = pm * res + ((data == null) ? 0 : data.hCode()); res = pm * res + ((node == null) ? 0 : node.hCode()); return res; } @Override public boolean equals(Object obj) { if(this == obj) return true; if(obj == null) return false; if(!(obj instanceof Node)) return false; Node other = (Node) obj; if(data == null) { if(other.data != null) return false; } else if(!data .equals(other.data)) return false; if(node == null) { if(other.node != null) return…