What is the output of the following code snippet? java.util.LinkedList; import public class Test { } public static void main(String[] args) { LinkedList myList = new LinkedList(); myList.add(100); myList.add(50); myList.add(400); myList.add(200); myList.add(50); System.out.println(myList.getFirst()+""+ myList.getLast()); } O 100 100 O 100

What is the output of the following code snippet? java.util.LinkedList; import public class Test { } public static void main(String[] args) { LinkedList myList = new LinkedList(); myList.add(100); myList.add(50); myList.add(400); myList.add(200); myList.add(50); System.out.println(myList.getFirst()+""+ myList.getLast()); } O 100 100 O 100

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Solution in Java: The play() method comes from a word game. Implement the play() method as described in code comments. import java.util.LinkedList;import java.util.ListIterator; public class WordGamePlay { public static void main(String[] args) { // This main method provides code to run tests on the play() method. // You are free to add code, delete code, change code, etc., in main // as long as it compiles. LinkedList<String> words = new LinkedList<String>(); words.add("file"); words.add("edit"); words.add("refactor"); words.add("free"); words.add("source"); words.add("sleeps"); String word; ListIterator<String> it; System.out.println(); word = "rampages"; System.out.println(" List: " + words); System.out.println(" Testing: " + word); it = words.listIterator(); play(it, word); System.out.println(" Result: " + words);…
Given the tollowiıng class template detinition: template class linkedListType { public: const linked ListType& operator=(const linked ListType&); I/Overload the assignment operator. void initializeList(); /Initialize the list to an empty state. //Postcondition: first = nullptr, last = nullptr, count = 0; linked ListType(); Ildefault constructor //Initializes the list to an empty state. /Postcondition: first = nullptr, last = nullptr, count = 0; -linkedListīype(); Ildestructor /Deletes all the nodes from the list. //Postcondition: The list object is destroyed. protected: int count; //variable to store the number of elements in the list nodeType *first; //pointer to the first node of the list nodeType *last; //pointer to the last node of the list 1) Write initializeList() 2) Write linkedListType() 3) Write operator=0 4) Add the following function along with its definition: void rotate(); I/ Remove the first node of a linked list and put it at the end of the linked list
1- A new static method with one parameter which is a head node for a linked list of integers, the method should create a new linked list which is equivalent to the original list of integers but with all repetitions removed, the method's return value is a head reference for the new list. this is what I have but it's not removing repetitions. public static IntLinkedBag removeRepetition (IntLinkedBag b1) { IntNode next; IntNode head = null; LinkedList<Integer> s = new LinkedList<>(); IntNode new_list = new IntNode(0, null); IntNode now = head; IntNode prev = new_list; while (now!= null) { int x = now.data; if (s.contains(x)) { new_list = new_list.next; } else { s.add(x); new_list.next = new IntNode(x, now); new_list = new_list.next; } now = now.next; } return b1; } }…
Assume the following method is within the SingleLinkedList class. What does it do? public void unknownMethod () { Node pt head; E temp; while (pt != null && pt.next != null) { temp pt.data; = pt.data pt.next.data; pt.next.data= temp; pt pt.next; } }
import java.util.*;public class Print { public static void main(String args[]) { List<Integer> myList = Answer; myList.add(100); myList.add(new Integer(1)); myList.add(1); myList.add(new Integer(200)); myList.add(2); Answer{ System.out.println(i); } System.out.println("sorting..."); Answer; //sorts the elements for (Integer i: myList){ System.out.println(i); } }}
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).
The following procedure removes the first half of the list passed as a parameter: public static void foo( List myList) { int theSize = myList.size( ) / 2; for( int i = 0; i < theSize; i++ ) myList.remove( 0 ); } What is the running time of foo if myList is a LinkedList? e(1) O e(n Ig n) O(n) O e(n³) e(n?)
Java Only Do Method, I will give LinkedList Implementation Write a method checkForEquality to be included in class KWLinkedList that does not have any parameter. Assume the list is having even number of nodes. The method returns true if the first half of the list is equal to the second half of the list in the reverse order, otherwise it returns false. If the list is empty, the method returns false; import java.util.NoSuchElementException;/** Implementation of the interface StackInt using a linked list. The* top element of the stack is in the first (front) node of the linked list.*/public class LinkedStack<E> implements StackInt<E>{ /** Node: inner class to create nodes for linked list based stack. */private static class Node<E>{// Data Fieldsprivate E data;private Node<E> next; // The reference to the next node. // Constructors/*** Creates a new node with a null next field.* @param dataItem The data to be stored in the node*/private Node(E dataItem){data =…
class Node { public: Node() : data(0), prev(nullptr), next(nullptr) {} Node(int theData, Node* prevLink, Node* nextLink) : data(theData), prev(prevLink), next(nextLink) {} int getData() const { return data; } Node* getPrev() const { return prev; } Node* getNext() const { return next; } void setData(int theData) { data = theData; } void setPrev(Node* prevLink) { prev = prevLink; } void setNext(Node* nextLink) { next = nextLink; } ~Node(){} private: int data; Node* prev; Node* next; }; class AnyList { // friend function overloads the insertion operation public: // copy constructor // overloaded assignment operator // other member functions not necessary for your implementation private: Node *first; Node *last; int count; }; please help write copy constructor #include "AnyList.h" #include <iostream> using namespace std; // Definition of copy constructor // Instructions omitted intentionally. // Your code
java program : Given the following method to be considered within the SingleLinkedList class, what does this method do? public void Undefined() { Node<E> ptr = head; if (ptr == null || ptr.next == null) return false; E item1 = ptr.data; while (ptr.next != null) ptr = ptr.next; E item2 = ptr.data; if (item1.equals(item2)) { head = head.next; size--; } } If the first element of the list is equal to the second element of the list, then the method deletes the second node. If the first element of the list is equal to the last element of the list, then the method deletes the first node. If the first element of the list is equal to the second element of the list, then the method deletes the first node. If the first element of the list is equal to the last element of the list, then the method deletes the last node.
Given main() and an IntNode class, complete the IntList class (a linked list of IntNodes) by writing the insertInAscendingOrder() method that inserts a new IntNode into the IntList in ascending order. Ex. If the input is: 8 3 6 2 5 9 4 1 7 -1 the output is: 1 2 3 4 5 6 7 8 9 import java.util.Scanner; public class SortedList {public static void main (String[] args) {Scanner scnr = new Scanner(System.in);IntList intList = new IntList();IntNode curNode;int num;num = scnr.nextInt();// Read in until -1while (num != -1) {// Insert into linked listcurNode = new IntNode(num);intList.insertInAscendingOrder(curNode);num = scnr.nextInt();}intList.printIntList();}}