Question 1: Suppose you are working on an object-oriented module for a Car Dealership Management System. Major Classes are Seller, Dealer, Car, Buyer, and Invoice. Details of the classes can be seen in Table 1. Common details of a Dealer, Seller and Buyer classes can be combined into a super class Person. A person has a name, address, phone number and e-mail address. Note that the system does not store information about individual person, so the Person must be either a Seller, dealer, or a buyer. Explain how this can be achieved using Object Oriented Programming.

Question 1: Suppose you are working on an object-oriented module for a Car Dealership Management System. Major Classes are Seller, Dealer, Car, Buyer, and Invoice. Details of the classes can be seen in Table 1. Common details of a Dealer, Seller and Buyer classes can be combined into a super class Person. A person has a name, address, phone number and e-mail address. Note that the system does not store information about individual person, so the Person must be either a Seller, dealer, or a buyer. Explain how this can be achieved using Object Oriented Programming.

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

See similar textbooks

Similar questions

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)…
: Imagine you have a call center with three levels of employees: respondent, manager,and director. An incoming telephone call must be first allocated to a respondent who is free. If therespondent can't handle the call, he or she must escalate the call to a manager. If the manager is notfree or not able to handle it, then the call should be escalated to a director. Design the classes anddata structures for this problem. Implement a method dispatchCall () which assigns a call tothe first available employee.
Table 1: Class Attributes name, registration number, engine number, chassis number, city of registrat make and model, color, the date of the registration, price, the date of arrival of car to the dealership, type of the vehicle, and whether the car is sold or not. dealer's name, dealer's id, dealer's address, and the dealer's phone number. dealer object also keeps track of the cars that the dealer has. A person has a name, address, phone number and e-mail address. Car Dealer Person
Question Write a class named Student with data attributes for a student's name, identification number, and telephone number. Next, write a class named Undergraduate which is a subclass of the Student class. The Undergraduate class should have a data attribute for a student's year of study, and a Boolean data attribute indicating whether the student intends to carry on his/her master degree within the same department. Demonstrate an instance of the Undergraduate class in a simple program.
Abstraction is the basis for good Object-Oriented design that is modular, reusable, and maintainable. Interfaces and Abstract classes are two mechanisms in Java that provide high-level abstractions. An interface or abstract class is something which is not concrete, something which is incomplete. what do you think is meant by “Programming to an interface”? What are some differences between Abstract Classes and Interfaces? Provide a simple example application with an interface definition and a class which implements the interface.
Analysis: Q1: There are common attributes and methods between kids and trainers. What is the best choice for designing and writing the codes of these two classes? Explain your answer. Q2: Draw a simple class diagram showing only relationships between the classes. Implementation: After analysing the given requirements, implement the required application: with Object Oriented Programming style following the rules of good programming style (e.g. adding comments, etc.) using only the material covered in M251 (and its prerequisites) Hints: For each class, it is required to implement constructors, setters, getters, toString() method, and any other necessary method If the user tries to do an operation that could violate the state of objects, the operation should be ignored and the application should display an error message (e.g. adding a kid to the same group twice, etc.) Checking equality of any 2 objects should be done via the equals() method There is a class that will do the main job of…
subject: object-oriented programming in your library there are two types of books. one category is literature books and the second category is generals. litrature books have the authorID, authorname literature theme language, publisher, volumn,, yearofpubication, journal have attributes volumn, issue, publisher,yearofpublication,journalID, technical sponser. design a parent class books extend two classes literaturebooks and journel from parent class make constructor , setter, and getter
Consider the following scenario: A chicken, eagle and duck are birds. A dog, cat, cow,and lion are animals. Human and Birds are also animals. Peas, carrots, and grass areplants. Chicken, duck, cow, and plants are edible. Draw a class diagram for the abovescenario. You can use classes, inheritance, interfaces, and associations (includingcomposition or aggregation) when needed. You shouldn’t use operations.
Use java programming language 1.1 Create a Student Object project. Create a Student class and use the provided UML diagram to code the instance fields, constructors and methods. Note: The module mark is the average of the participation mark and the examination mark - calculate this using the calcModuleMark() method. The determineStNumber() method should compile a student number with the first 3 letters of the student's name, a '#' symbol, and a 3-digit randomly generated number (make use of a for-loop to concatenate these 3-digits). The stNumber data field should be set in the constructor by calling the determineStNumber() method. The toString() method must compile a string to display the student number, participation mark, examination mark, and module mark, formatted in table format. Student number PMark EMark MMark Mar#9186 81 64 72.00 1.2 Create a testStudents class. Do the following: -Write a static method called display() which receives…
Java Programming Object-Oriented Programming In an abstract class, write a factory method for creating a category of object of your choice (aside from furniture). Also, write the class representing that category.b) Write the child classes that are necessary to create 3 different types of objects that belong to that category
For the following scenario, draw a UML class diagram to illustrate the classes implemented, hierarchical relationship among the classes, data fields and methods. You may use MS Word, MS Paint, or pencil / pen & paper and upload a photo of the diagram. This program is for a bank application. The bank organization includes attributes such as name, routing number, city location. The bank contains several hundred employees, and several thousand customers. Customers may hold checking accounts and / or savings accounts. Transactions include deposits, withdrawals, transfers.
Design and implement an object-oriented program for displaying a deck of cards. Each card will have a value ranging in order from 1 for an ace, 2 for a two, and so on up to and including 11 for a jack, 12 for a queen, and 13 for the king. The focus of the exercise is to create three classes that represent a card, deck, and hand using composition.