newList = [] student = ['Aju', 15] newList. add insert Question append ✓(student)
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- Lab 20 Removing the first element in a list Start this lab with the code listed below. The LinkedList class defines the rudiments of the code needed to build a linked list of Nodes. Complete the code for the removeFirst method, which should remove and return the first element in the linked list. Throw a NoSuchElementException if the method is invoked on an empty list. Use the LinkedListRunner class’s main method to test your code. import java.util.NoSuchElementException;public class LinkedList{ private Node first; public LinkedList() { first = null; } public Object getFirst() { if (first == null) { throw new NoSuchElementException(); } return first.data; } public void addFirst(Object element) { Node aNode = new Node(); aNode.data = element; aNode.next = first; first = aNode; } public Object removeFirst() { // put your code here } public String toString() { String temp = ""; Node current = first;…34Given that values is of type LLNode<Integer> and references a linked list (non-empty) of Integer objects, what does the following code do if invoked as mystery(values)? void mystery(LLNode<Integer> list){if (list != null){System.out.println(list.getInfo());mystery(list.getLink());}}Group of answer choicesprints the list from start to end.prints the first element on the list.prints the last element on the list.prints the list in reverse order.None of these is correct.Don't copy from other websties a) Write a function to get the value of the Nthnode in a Linked List. [Note: The first (N=1) item in the list means the item at index 0.] It takes two parameters: the list or its head, and N. Return False if the list has fewer than N elements. The Linked List structure supports the following function. def getHead(self): return self.head # it points to a Node structure The Node structure supports the following functions. def getData(self): return self.data # it returns the value stored in the Node def getNext(self): return self.next # it points to the next Node b) Write a function that counts the number of times a given integer occurs in a Linked List. Assume similar structures as defined in 1.
- int[] findMaxMin (LinkedList liste); The method whose prototype is given above finds the maximum and minimum element in a Linked List entered as a parameter and returns the results with an array. Fill in the body of the above method accordingly. ? public class Node { Node nextNode; int data; Node(int data){ this.data=data; this.nextNode=null; } }Lab 20 Removing the first element in a list Start this lab with the code listed below. The LinkedList class defines the rudiments of the code needed to build a linked list of Nodes. Complete the code for the removeFirst method, which should remove and return the first element in the linked list. Throw a NoSuchElementException if the method is invoked on an empty list. Use the LinkedListRunner class’s main method to test your code. Java languageUsing Java programming language create a linked list named Cars with four elements: "SUV cars", "Pickup cars", "Sport cars", and "Sedan cars". Apply the following activities on the code you’ve created and provide screen shot of each result: Add a new element “Classic car” at the beginning of the linked list using iterator. Add a new element “Economic cars" after the element "Sedan Cars" using iterator. Print the LinkedList backward from the last element to the first element using hasPrevious()
- Write a Python code using the given function and conditions. Do not use Numpy. Use LinkedList Manipulation. Given function: def insert(self, newElement, index) Pre-condition: The list is not empty. Post-condition: This method inserts newElement at the given index of the list. If an element with the same key as newElement value already exists in the list, then it concludes the key already exists and does not insert the key. [You must also check the validity of the index].You are going to implement a program that creates an unsorted list by using a linked list implemented by yourself. NOT allowed to use LinkedList class or any other classes that offers list functions. It is REQUIRED to use an ItemType class and a NodeType struct to solve this homework. The “data.txt” file has three lines of data 100, 110, 120, 130, 140, 150, 160 100, 130, 160 1@0, 2@3, 3@END You need to 1. create an empty unsorted list 2. add the numbers from the first line to list using putItem() function. Then print all the current keys to command line in one line using printAll(). 3. delete the numbers given by the second line in the list by using deleteItem() function. Then print all the current keys to command line in one line using printAll().. 4. putItem () the numbers in the third line of the data file to the corresponding location in the list. For example, 1@0 means adding number 1 at position 0 of the list. Then print all the current keys to command line in one…int[] findMaxMin (LinkedList liste); The method whose prototype is given above finds the maximum and minimum element in a Linked List entered as a parameter and returns the results with an array. Fill in the body of the above method accordingly. JAVA CODE public class Node { Node nextNode; int data; Node(int data){ this.data=data; this.nextNode=null; } }
- 19Given that values is of type LLNode<Integer> and references a linked list (non-empty) of Integer objects, what does the following code do if invoked as mystery(values)? int mystery(LLNode<Integer> list){ if (list.getLink() == null) return list.getInfo(); else return mystery(list.getLink());} Group of answer choices returns 0. returns sum of the numbers on the values list. returns how many numbers are on the values list. returns the last number on the values list. None of these is correct.Question 40 An application can indicate a specific way to order the elements of a SortedABList list by passing a(n) Comparator object to a constructor of the list class. True False Question 41 A header node is a placeholder node at the beginning of a list, used to simplify list processing. True False Question 42 O(N) is the order of growth execution time of the indexOf operation when using the ABList class, assuming a list size of N. True False Question 43 A trailer node is a placeholder node at the end of a list, used to simplify list processing. True False Question 44 O(1) is the order of growth execution time of the indexOf operation when using the LBList class, assuming a list size of N. True False Question 45 Recall that within the ABList the numElements variable holds the number of elements currently in the list, and the elements array stores those elements. Assuming that a legal index is used, which of the following represents the code for the index-based T…C++ Question You need to write a class called LinkedList that implements the following List operations: public void add(int index, Object item); // adds an item to the list at the given index, that index may be at start, end or after or before the // specific element 2.public void remove(int index); // removes the item from the list that has the given index 3.public void remove(Object item); // finds the item from list and removes that item from the list 4.public List duplicate(); // creates a duplicate of the list // postcondition: returns a copy of the linked list 5.public List duplicateReversed(); // creates a duplicate of the list with the nodes in reverse order // postcondition: returns a copy of the linked list with the nodes in 6.public List ReverseDisplay(); //print list in reverse order 7.public Delete_Smallest(); // Delete smallest element from linked list 8.public List Delete_duplicate(); // Delete duplicate elements from a given linked list.Retain the…