O Overloading involves writing two or more functions with the same name and the same list of arguments
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- If arraylist contain "apple", "orange", "mango", "grapes". What indexOf("melon") doWrite a program to test various operations of the class doublyLinkedList.Please implement in Java implement a keyed bag in which the items to be stored are strings (perhaps people’s names) and the keys are numbers (perhaps Social Security or other identification numbers). So, the in- sertion method has this specification: public void insert(String entry, int key);// Precondition: size( ) < CAPACITY, and the // bag does not yet contain any item// with the given key.// Postcondition: A new copy of entry has// been added to the bag, with the given key. When the programmer wants to remove or retrieve an item from a keyed bag, the key of the item must be specified rather than the item itself. The keyed bag should also have a boolean method that can be used to determine whether the bag has an item with a specified key. In a keyed bag, the pro- grammer using the class specifies a particular key when an item is inserted. Here’s an implementation idea: A keyed bag can have two private arrays, one that holds the string data and one that holds the corresponding…
- do the changes in this program according to the given instruction import java.util.*;class CourseManager{//toatl students each section can holdstatic int max_Students;//mapping of each sections w.r.t to courseHashMap<String,ArrayList<Section> > courses ; //constructor for CourseManagerpublic CourseManager(int max){max_Students = max;courses = new HashMap<>();}//class Person which will be used by teacher and students to inherit its propertiesstatic class Person{String name;int age;public Person(String name , int age ){this.name = name;this.age = age;}}//teacher classstatic class Teacher extends Person{int id;public Teacher(int id , String name , int age ){super(name , age );this.id = id;}}//student classstatic class Student extends Person{int id;public Student(int id , String name , int age ){super(name , age );this.id = id;}}//section classstatic class Section{int section;String course ;Teacher instructor;int size ;HashMap<Integer ,Student >…Write a class TouristSpot that has the data members; name of tourist spot, state in which it lies. Create an array list of n places and write a function that takes array list as an argument to identify a state that has more than one tourist spot. Java ProgramONLY EXPERTS PLEASE! write a C++ program for an inbuild device on children’s glasses which will be connected to parents’ mobile devices that sends signals/ notifications to parents mobile devices when their kids wear glasses and forget to take them off when they fall asleep or are playing certain activities that include jumping. Conduct program using Classes/OOP, File I/O, Linked Lists Do Not use vectors.
- Given ArrayList<String> mascots ("lion", "eagle", "badger", "snake"), what is output? for (int i = 0; i < mascots.size() - 1; ++i) { System.out.print(mascots.get(i) + " ");} Group of answer choices A)0 1 2 3 B)lion eagle badger C)0 1 2 D)lion eagle badger snakeCan you please help update this? //A6Utilities.java import java.io.IOException;import java.nio.file.Files;import java.nio.file.Paths;import java.security.SecureRandom;import java.util.List;import java.util.TreeMap;import java.util.function.Function;import java.util.stream.Collectors;public class A6Utilities {/*** Returns the corresponding letter grade. Don't modify this method, simply use it when converting single* grades to their equivalent letter grade** @param grade the integer grade to convert* @return the letter grade equivalent to the integer grade*/private static char letterGrade(final int grade) {if (grade < 0) return '?';else if (grade < 60) return 'F';else if (grade < 70) return 'D';else if (grade < 80) return 'C';else if (grade < 90) return 'B';else if (grade <= 100) return 'A';else return '?';}/*** The method uses Java Streams only. Don't use any looping structures, conditional statements are OK (IF, TERNARY, SWITCH)* <p>* Generates a list of secure…1 IN JAVA ----- Write a method of public class called "isInputOneValid" that verifies if a string parameter called "inputOne" is included inside an array called "tableOne". Return as a boolean (if valid, return true, if not, false)
- Multiple integers, representing the number of babies, are read from input and inserted into a linked list of TurtleNodes. Find the sum of all the integers in the linked list of TurtleNodes. Ex: If the input is 3 38 18 23, then the output is: 82 import java.util.Scanner; public class TurtleLinkedList { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); TurtleNode headTurtle = null; TurtleNode currTurtle = null; TurtleNode lastTurtle = null; int count; int inputValue; int i; int sum; count = scnr.nextInt(); headTurtle = new TurtleNode(count); lastTurtle = headTurtle; for (i = 0; i < count; ++i) { inputValue = scnr.nextInt(); currTurtle = new TurtleNode(inputValue); lastTurtle.insertAfter(currTurtle); lastTurtle = currTurtle; } /* Your code goes here */ System.out.println(sum); }} class TurtleNode { private int…Answer all the questions else downvote and bad rating a). What is the difference between shallow and deep equality tests on Arrays in Java? (b) How would you backup (copy) all elements of an array to a new array using a *single* Java statement? (c) Provide an algorithm/pseudocode for finding the penultimate (second-last) node in a doubly linked list where the last node is indicated by a null next reference. (d) Provide an algorithm/pseudocode to find the ?th last element of a singly linked list starting with only the header sentinel? (e) Which function has the similar profile (i.e., the same “shape”) in the log-log scale as it is in the classical y/x scale? (f) How does one order these functions based on non-increasing asymptotic growth rates? (g) Textbook Exercises R-5.3, R-5.4, R-5.9 (h) Textbook Exercise C-5.20 Hint: Leverage the fact that whether the last element is odd or even can be checked by the modulo operator (%) in Java and then based on this recur. (i) Textbook Exercise…Can this be put into a list comprehension? (On one line)?? def week_10(report):k= []for i in report:z = ""for j in range(i.index("bio"), len(i)):if i[j].isdigit():z += i[j]elif i[j] == '.':z += i[j] k.append(z) return k