The Customer class In the context of our problem domain, what must the Custoner class know? The description directly mentions the following items, which are all attributes of a customer: • The customer's name • The customer's address • The customer's telephone number These are all values that can be represented as strings and stored in the class's fields. The Customer class can potentially know many other things. One mistake that can be made at this point is to identify too many things that an object is responsible for knowing. In some applications, a Customer class might know the customer's email address. This particular problem domain does not mention that the customer's email address is used for any pur

The Customer class In the context of our problem domain, what must the Custoner class know? The description directly mentions the following items, which are all attributes of a customer: • The customer's name • The customer's address • The customer's telephone number These are all values that can be represented as strings and stored in the class's fields. The Customer class can potentially know many other things. One mistake that can be made at this point is to identify too many things that an object is responsible for knowing. In some applications, a Customer class might know the customer's email address. This particular problem domain does not mention that the customer's email address is used for any pur

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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Write the Movie class. The UML diagram of the class is represented below: 1. Implement the class strictly according to its UML one-to-one (do not include anythingextra, and do not miss any data fields or methods). 2. Implement a MovieTest class to test the class Movie you just created.• Create two Movie objects: one using the no-args constructor and one from theconstructor with all fields.• Print the contents of both objects. Please submit a screenshot. Hint: toString()method.
Person and Customer Classes Write a class named (Person) with data attributes for a person’s name, address, and telephone number. Provide accessors/getters and mutators/setters for each attribute. Write a displayPerson() to print out the attributes of the Person. Next, write a class named (Customer) that is a subclass of the (Person) class. The (Customer) class should have a data attribute for a customer number, and a Boolean data attribute indicating whether the customer wishes to be on a mailing list. Provide accessors/getters and mutators/setters for each attribute. Write a display customer() to print out the attributes of the Customer. Demonstrate an instance of the (Customer) class in a simple program.
Write a Program in java to define a Student class, with member variables String name; int cms String DegreeProg Make a default constructor, Make a parameterized constructor. Overload the above Constructor. Provide getters and setters for data members. Inside main, create 2 students objects. Take data from user and set the values for the 2 students. At the end Print daTa.
4. class definition for Friend For the next version of the friends database (coming soon!), we want to use classes rather than dictionaries. Define a Friend class , where each Friend object will store that friend's name, height and favorite foods. The class should have an init method that takes in that friend's name and height. It should have an add favorite_food method that takes a string and adds that string to a set of favorite foods, and a number_of_favorite_foods method that returns the number of favorite foods for that friend. Sample runs should look like: >>> friend1 = Friend ("dweezil", 175) >>> friend1. add favorite food("borscht") >>> friend1.add favorite food("borscht") >>> friend1. add favorite food("bagel") >>> friend1.add_favorite food("banana") >>> friend1.number_of_favorite_foods () 3. >>> friend1.name 'dweezil' >>> friend1.height 175
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)…
This exercise will be about processing a collection of bank transactions using an iterator. A particular account owner may have multiple transactions. Assume a classed named BankXA that contains info about a customer's transaction. The class has 4 public attributes:string acctOwner //The name of the account's ownerstring xaDetail //some detail on the transactionstring type // assume the value will always be either "dep" for a deposit or "withd" for withdrawal, no other values double amt //the amount of the transaction. The amount will always be 0 or more Note that these attributes are public therefore you will NOT need setters and getters for this exercise. Your program will obtain a pointer to a list of BankXA. Your program must iterate the list using an iterator and the result must be like the following: J. Faune withdrew -$485.00 I. Boesky withdrew -$42885.50 J. Faune deposited +$2.50 Where J. Faune and I. Boesky are the acctOwners,the withdrew and deposited refer to the type "dep"…
Write a class named Person with data attributes for a person’s name, address, and telephone number. Provide accessors/getters and mutators/setters for each attribute. Write a displayPerson() to print out the attributes of the Person. Next, write a class named Customer that is a subclass of the Person class. The Customer class should have a data attribute for a customer number, and a Boolean data attribute indicating whether the customer wishes to be on a mailing list. Provide accessors/getters and mutators/setters for each attribute. Write a display customer() to print out the attributes of the Customer. Demonstrate an instance of the Customer class in a simple program. All your programs will be modular. It will have the main() method that is executed first. Submit code that has no syntax error. And test your code, so as to not have logic errors. Each program must contain your name in the comments section and the date you created the code.
What is the design pattern depicted in the diagram below? The intent of this design pattern is to define an interface for creating an object, but let subclasses decide which class to instantiate. It lets a class defer instantiation to subclasses. Client Abstraction normalMethodoe BmakeObjecto Product do some stuff aProduct = makeObjecto: f do some more stuff -aProduct Product ConcreteOne ConcreteTwo makeObjecto : Product ProductOne ProductTwo return new ProductOneo. A. Factory Method Design Pattern B. Singleton Design Pattern C. Proxy Design Pattern D. Adapter Design Pattern
Write a Program to define a Student class, with member variables String name; intcms String DegreeProg Make a default constructor, Make a parameterized constructor. Overload the above Constructor. Provide getters and setters for data members. Inside main, create 2 students objects. Take data from user and set the values for the 2 students. At the end PrintdaTa.
1 - Student class Make a class student (in student.py) that stores the following information for a student: Name (name) Student number (student_nr) Points per assignment (points_per_assignment) Exam grade (exam_grade) a) Behind each point of information is the name of the parameter to the initializer method. Store this information from the parameters in the object attributes with the same name. b) Add a method course_points() which returns the number of course points the student has gotten. Example: mary = Student("Mary", 15789613, [10, 9, 8, 10, 9, 10], 9)print(mary.course_points()) > 121 The calculation of the course points is explained in the course overview, course setup slides (Links to an external site.) and the first lectureLinks to an external site.. c) Add a method grade() which returns a the final grade of the student, rounded to nearest half (upwards, 6.75 -> 7). As per regulations, a 5.5 becomes a 6. If the student did not pass both the assignments (>= 95…
Design a Friend class that the following members: • A field for the name of the friend (a string). •A field for the cell phone number of the friend (a string). • A field for the gender of the friend (a character F or M). • A static field numObjects (integer). Constructors: A default constructor and a parameterized constructor. Accessors methods for the data fields. Set methods for the cell phone data field and the numObjects field. A toString() method that displays the data fields. Design a testFriend driver class that has an arrFriends array that can hold up to a maximum of 15 objects. Write a static fillArray() method that receives the arrFriends array and allow the user to enter the information of a number of friends. Save the objects to the array. Return the array to the call statement. Write a static displayArray) method that receives the arrFriends array as parameter and display a numbered list of information on the objects saved in the array. Write a static sortData() method…
In Python, #Create a basket class, which has a class/static attribute pricelist (string/float dictionary - you can hardcode this) #The constructor should set the name to the name passed as a parameter and initialise the contents (empty) #You should provide an addItem method taking product,quantity which adds this to the contents #and a getQuantity method taking a product, which returns the relevant quantity