Modify the BookStore and BookSearchEngine classes explained in the class to include the following additional methods and test them: a) A method returning the book with the lowest price in the library. b) A method searching the library for Books of a given author and returning an ArrayList of such Books. c) A method returning an ArrayList of Books whose price is less than a given number.

Modify the BookStore and BookSearchEngine classes explained in the class to include the following additional methods and test them: a) A method returning the book with the lowest price in the library. b) A method searching the library for Books of a given author and returning an ArrayList of such Books. c) A method returning an ArrayList of Books whose price is less than a given number.

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter9: Advanced Array Concepts

Section: Chapter Questions

Problem 7PE

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(a)Implement all the classes. The formula for calculating salary for each class is shown below: For the Employee class, salary = basic salary + allowance For the Manager class , salary = basic salary + allowance + travel claims For the Clerk class , salary = basic salary + allowance + overtime pay,where overtime pay = overtime hours x overtime rate. Set overtime rate as RM3.50. Write a client program that creates an array named empArray that stores an object of an Employee,a Manager and a Clerk.In your program, include a method called printElements() that takes an array as parameter and prints the type of employee, the object’s data field values (by invoking thetoString() method) and the monthly salary.
????????: Implement the design of the Pizza class so that the following output is produced: [Your code should work for any number of parameters added in the set_toppings_info method] # Write your codes here. print("Pizza Count:", Pizza.pizza_count) print("=======================") p1 = Pizza("Chicken") p1.set_toppings_info(25, 1, 4, 0) p1.display() print("------------------------------------") p2 = Pizza("Olives") p2.set_toppings_info(15, 1.5, 0, 0) p2.display() print("------------------------------------") p3 = Pizza("Sausage") p3.set_toppings_info(50, 5, 2, 0) p3.display() print("=======================") print("Pizza Count:", Pizza.pizza_count) Output: Pizza Count: 0 ======================= Toppings: Chicken 25 calories 1 g fat 4 g protein 0 g carbs ------------------------------------ Toppings: Olives 15 calories 1.5 g fat 0 g protein 0 g carbs ------------------------------------ Toppings: Sausage 50 calories 5 g fat 2 g protein 0 g carbs ======================= Pizza…
In F3, students will be tasked with taking input from a file to create an *Array* of FeetInches (2 parameters). When all the FeetInches have been stored, any FeetInches at least 1 foot will be converted and added to an *ArrayList* of Circles (one parameter). Students will then complete the compareTo method found in the Circle class, sort the ArrayList of Circles, and then output the radius' of the new circle. The first integer in the file input will tell us how many FeetInches objects will be made using the fileInput, and the numbers after are the data for those Objects. Use this first integer in your for Loops. A template with main, Circle, and FeetInches class, as well as the file input, is attached below. Please follow along with comments and reach out if you have any questions. package f3_template; public class Circle implements Comparable <Circle>{//attribute private int radius; //constructorspublic Circle(){radius=0;}public Circle(int r){radius=r;}//accessorspublic…
Please use java only and public int method. Show the steps with the pictures also. In this assignment, you will implement a class calledArrayAndArrayList. This class includes some interesting methods for working with Arrays and ArrayLists. For example, the ArrayAndArrayList class has a “findMax” method which finds and returns the max number in a given array. For a defined array: int[] array = {1, 3, 5, 7, 9}, calling findMax(array) will return 9. There are 4 methods that need to be implemented in the A rrayAndArrayList class: ● howMany(int[] array, int element) - Counts the number of occurrences of the given element in the given array. ● findMax(int[] array) - Finds the max number in the given array. ● maxArray(int[] array) - Keeps track of every occurrence of the max number in the given array. ● swapZero(int[] array) - Puts all of the zeros in the given array, at the end of the given array. Each method has been defined for you, but without the code. See the javadoc for each…
Write a class Employee with name and salary. Create an ArrayList that sorts the Employees based on salary.
Please use java. Show the steps with pictures. In this assignment, you will implement a class calledArrayAndArrayList. This class includes some interesting methods for working with Arrays and ArrayLists. For example, the ArrayAndArrayList class has a “findMax” method which finds and returns the max number in a given array. For a defined array: int[] array = {1, 3, 5, 7, 9}, calling findMax(array) will return 9. There are 4 methods that need to be implemented in the A rrayAndArrayList class: ● howMany(int[] array, int element) - Counts the number of occurrences of the given element in the given array. ● findMax(int[] array) - Finds the max number in the given array. ● maxArray(int[] array) - Keeps track of every occurrence of the max number in the given array. ● swapZero(int[] array) - Puts all of the zeros in the given array, at the end of the given array. Each method has been defined for you, but without the code. See the javadoc for each method for instructions on what the…
Implement the design of the Pizza class so that the following output is produced:[Your code should work for any number of parameters added in the set_toppings_info method]# Write your codes here.print("Pizza Count:", Pizza.pizza_count)print("=======================")p1 = Pizza("Chicken")p1.set_toppings_info(25, 1, 4, 0)p1.display()print("------------------------------------")p2 = Pizza("Olives")p2.set_toppings_info(15, 1.5, 0, 0)p2.display()print("------------------------------------")p3 = Pizza("Sausage")p3.set_toppings_info(50, 5, 2, 0)p3.display()print("=======================")print("Pizza Count:", Pizza.pizza_count)Output:Pizza Count: 0=======================Toppings: Chicken25 calories1 g fat4 g protein0 g carbs------------------------------------Toppings: Olives15 calories1.5 g fat0 g protein0 g carbs------------------------------------Toppings: Sausage50 calories5 g fat2 g protein0 g carbs=======================Pizza Count: 3
PLease use java In this assignment, you will implement a class called ArrayAndArrayList. This class includessome interesting methods for working with Arrays and ArrayLists.For example, the ArrayAndArrayList class has a “findMax” method which finds and returns themax number in a given array. For a defined array: int[] array = {1, 3, 5, 7, 9}, callingfindMax(array) will return 9.There are 4 methods that need to be implemented in the ArrayAndArrayList class:● howMany(int[] array, int element) - Counts the number of occurrences of the givenelement in the given array.● findMax(int[] array) - Finds the max number in the given array.● maxArray(int[] array) - Keeps track of every occurrence of the max number in the givenarray.● swapZero(int[] array) - Puts all of the zeros in the given array, at the end of the givenarray.Each method has been defined for you, but without the code. See the javadoc for each methodfor instructions on what the method is supposed to do and how to write the code. It…
This is the question I am stuck on - In the exercises in Chapter 6, you created a class named Purchase. Each Purchase contains an invoice number, amount of sale, amount of sales tax, and several methods. Now, write a program that declares an array of five Purchase objects and prompt a user for their values. As each Purchase object is created, continuously prompt until the user enters an invoice number between 1000 and 8000 inclusive and a non-negative sale amount. Prompt the user for values for each object and then display all the values. This is the code that I am unsure where to fully start - public class Purchase { private int invoiceNumber; private double saleAmount; private double tax; private static final double RATE = 0.05; public void setInvoiceNumber(int num) { invoiceNumber = num; } public void setSaleAmount(double amt) { saleAmount = amt; tax = saleAmount * RATE; } public double getSaleAmount() { return…
a)Implement all the classes. The formula for calculating salary for each class is shown below: For the Employee class, salary = basic salary + allowance For the Manager class , salary = basic salary + allowance + travel claims For the Clerk class , salary = basic salary + allowance + overtime pay,where overtime pay = overtime hours x overtime rate. Set overtime rate as RM3.50. Use java to write a client program that creates an array named empArray that stores an object of an Employee,a Manager and a Clerk.In your program, include a method called printElements() that takes an array as parameter and prints the type of employee, the object’s data field values (by invoking thetoString() method) and the monthly salary.
please use the name, phonenumber and phonebookentry to build this. The three parallel arrays are gone — replaced with a single array of type PhonebookEntry. You should be reading in the entries using the read method of your PhonebookEntry class (which in turn uses the read methods of the Name and PhoneNumber classes). Use the equals methods of the Name and PhoneNumber classes in your lookup and reverseLookup methods. Use the toString methods to print out information. Make 100 the capacity of your Phonebook array Throw an exception (of class Exception) if the capacity of the Phonebook array is exceeded. Place a try/catch around your entire main and catch both FileNotFoundExceptions and Exceptions (remember, the order of appearance of the exception types in the catch blocks can make a difference). Do not use BufferedReader while(true) breaks The name of your application class should be Phonebook. Also, you should submit ALL your classes (i.e., Name, Strip off public from all your class…
A(n)_ is a special kind of class that never uses any non-virtual methods. Please provide your comment in the spaces provided.