Instructions: Write your answer on a piece of paper with your name on top. Take a picture andsubmit within the allocated time limit.«interfacePayable«abstractPersonidno, name, ageStudentcourse, tuition, balancepublic double pay(double amount);Employeedepartment, salaryGiven the class hierarchy:1. Define the interface Payable.2. Define the class Person that implements Payable and encapsulate. Override toString andequals.3. Define Student and encapsulate. Override toString and equals. Implement pay().pay() - deducts amount from balance and returns the new balance.4. Define class Test. Declare an array of 10 Persons. Assume that Employee had already beenimplemented. Ask the user whether to create a student or an employee object.

We need to define the interfaces and classes as per the given description.

Answered: Instructions: Write your answer on a…

Instructions: Write your answer on a piece of paper with your name on top. Take a picture and submit within the allocated time limit.

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter10: Introduction To Inheritance

Section: Chapter Questions

Problem 20RQ

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Instructions: Write your answer on a piece of paper with your name on top. Take a picture and submit within the allocated time limit. Problem 1: Implement class Employee as illustrated below. Apply appropriate constructors, encapsulate, and override toString and equals. Student Course Problem 2: «interface Payable abstract Employee Person SalariedEmployee Idno Name Employee Superclass Department Salary Subclass getPayment Amount() firstName, lastName, SSN weeklysalary Given the class hierarchy: 1. Define the interface Payable. 2. Define the class Employee that implements Payable and encapsulate. 3. Define SalariedEmployee and encapsulate. Implement getPayment Amount(). getPayment Amount() - returns a double amount that must be paid for an object of any class that implements the interface. For SalariedEmployee, it would just return the value returned by getWeeklySalary(). for new files: 128MB
1. Define an interface Measurable. It has a single abstract method: double getArea(); 2. Define an abstract class Shape which has two fields: type and name both of type Strin a. Provide constructor with a single input parameter: name. b. Provide accessor methods for both fields. C. Provide setter method for name. d. Provide toString() method that simply returns the "(type): (name)" e. Shape class implements Measurable interface without implementing its only abs method. 3.
Design a console program that will print details of prescribed textbooks of students. Make use of an abstract class Book with variables that will store the author, title, category and price of a book. Create a constructor that accepts the author, title and category through parameters and assign these to the class variables. Create an abstract set method for the price of a book; also create get methods for the variables.Create a subclass TextBook that extends the Book class and implements an iPrintable interface. The interface that must be added is shown below:public interface iPrintable { String DisplayDetails();}The TextBook subclass has a private variable named yearPrescribed for which a get method must be written. The constructor of the TextBook class must accept the author, title, category and yearPrescribed through parameters. Write the code for the setPrice() and DisplayDetails() methods.Write a useBook class and instantiate 2 objects of the TextBook class.
T/F1. Interface classes cannot be extended but classes that implement interfaces can be extended.
Java programming lnguage
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Task: Implement a class ChessPiece with properties: color, isAlive, moveCount, and position (x, y coordinates). Define an abstract move method. Create a Tower subclass that overrides move for specific behavior. Instructions: ChessPiece Class: Properties: String color, boolean isAlive, int moveCount, Position position. Abstract Method: move(int x, int y). Position Class: Contains int x, int y. Tower Subclass: Extends ChessPiece. Overrides move for straight line movement. Deliverable: Source code for ChessPiece, Position, and Tower. Document class functionalities briefly.
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T/F1. Interface classes cannot be expanded, but implementation classes may.
You cannot instantiate an interface but you can do so to an abstract class. True False
T/F1. However, implementation classes may be extended, but interface classes cannot.
Your assignment for this course is to implement a beginner level Book Management System (BMS) in Java language. BMS contains 2 classes: Bookand BookList. The Book class has the following attributes: code: a String object, that hold the book’s code. title: a String object, that hold the book’s title. qua: int variable, that hold the number of books with the same code in the library. price: a double variable, that hold the book’s price. The BookList class contains only one data member: ArrayList<Book> t. When running the program display the menu as below:1. Input & add book(s) to the end.2. Display all books.3. Search a book for given code.4. Update the book’s price for given code.5. Find the (first) max price value.6. Sort the list ascendingly by code.7. Remove the book having given code.8. Load data from file.0. Exit.Notes:(1) The book’s code must be unique in the list.(2) Display all books in format (code, title, quantity, price).(5)…