Three classes Parent class shape with attribute color , O Methods set color ,print (print the attributes which is color here) o virtual function calculate area • Child class circle o Attributes radius o Implement the calculate area function o Override the print function with the new attributes Child class Square o Attributes width o Implement the calculate area function o Override the print function with the new attributes

Three classes Parent class shape with attribute color , O Methods set color ,print (print the attributes which is color here) o virtual function calculate area • Child class circle o Attributes radius o Implement the calculate area function o Override the print function with the new attributes Child class Square o Attributes width o Implement the calculate area function o Override the print function with the new attributes

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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The ability to create classes with more specific attributes and methods that share the properties and methods of existing classes is referred to as: Abstraction Polymorphism Typecasting Inheritance
6. class PPP int H: protected : int S; public : void input (int); void out (); }; class Q0Q : private PPP int T; protected : int U; public : void indata (int, int); void outdata (); }; class RRR : public Q0Q int M; public : void disp (); }; int main () 002 objl; RRR obj2; return 0; a. In the above code, is the member function out() accessible by obj1? b. Name the member function(s), which can be accessed from the obj2? c. Name the data member(s) that can be accessed from function disp().
Exercise 1-Account class • Design a class named Account that contains : • A private int data field named id for the account • A private double data field named balance for the account • A privet Date data field named dateCreated that stores the date when the account was created • A no-arg constructor that creates a default account • A constructor that creates an account with the specified id and initial balance • The getters (i.e., accessors) and setters (i.e., mutators) methods for id and balance • The getter method for dateCreated • A method named withdraw that withdraws a specified amount from the account • A method named deposit that deposits a specified amount to the account
PLEASE CODE IN PYTHON PLEASE USE NESTED CLASS FUNCTION Design a Point Class with attributes X and Y coordinates. The Class should have following functions: a) change the coordinates, b) return a 2 element list [x,y] c) print a Point object. d) return distance from this instance to a given [x,y] Also design a Line Class which has 2 Point attributes. The Line class should have functions for following behaviours: a) Return the length of the line. b) Print the equation of the line c) Find if this instance is equal in length to another line.
The process by which objects of one class acquire the properties of objects of another class is known as Data Hiding O Polymorphism O Inheritance O Association Pick the term that relates to * polymorphism Static allocation Static typing Dynamic allocation O Dynamic binding
Create a class of type student .Members will include: name, gpa, rank (year) Make sure all data is private and all functions are public. Write member functions to:Set or initialize the dataRetrieve the data (get’em and set’em )Announce names of students who are eligible for a scholarship (those who have a GPA of 3.0 or higher)The program will declare at least two objects (pupils) of your new class and test each of the functions (OR if you would like to try your hand at vectors, create them dynamically- this may require a little research/review on your part).
1. Declare a class student with id, name and percentage 2. Make a public function average in class student which calculates the average student marks in 5 courses using arrays. 3. Define the object of class in main() 4. Get the values of studentlD, name and percentage from the user 5. Access method using class object and display average. 6. Print the values obtained from the user 7. Stop the program.
Using JAVASCRIPT write an object prototype for a Person that has a name and age, has a printInfo method, and also has a method that increments the persons age by 1 each time the method is called. Create two people using the 'new' keyword, and print both of their infos and increment one persons age by 3 years. Use an arrow function for both methods */ // Create our Person Prototype // Use an arrow to create the printInfo method // Create another arrow function for the addAge method that takes a single parameter // Adding to the age
Chapter 15 Customer Employee Creator Create an object-oriented program that allows you to enter data for customers and employees. The person related classes will be stored in a module separate from the main function application module. Console Customer/Employee Data Entry Customer or employee? (c/e): c DATA ENTRY First name: Frank Last name: Wilson Email: frank44@gmail.com Number: M10293 CUSTOMER Full name: Frank Wilson Email: Number: Continue? (y/n): y Customer or employee? (c/e): e DATA ENTRY First name: Joel Last name: Murach Email: joel@murach.com SSN: 123-45-6789 EMPLOYEE Full name: Joel Murach Email: SSN: Bye! frank44@gmail.com Continue? (y/n): n ● M10293 ● Specifications Create a Person class that provides attributes for first name, last name, and email address. Include a parameter for each attribute in the constructor method. This class will provide a property or method that returns the person's full name. ● ● ● ● joel@murach.com 123-45-6789 Create a Customer class that…
Explain each part of the Pseudocode below: START Public Class BankingSystem Declarations string accname double balance = 0 int pin, userpin, newpin void create() void dispbalance() void withdraw() void pinchange() void deposit()EndClass void BankingSystem::create print “Enter Your Name: ” Cin.ignore Getline(cin, accname) print “Enter Your Pin: “ Input user pin Void BankingSystem::pinchange print “Input old Pin: “ Input userpin If (pin == userpin) print “Enter new pin: “ Input newpin pin = newpin print “Your pin was successfully changed” Else print “Please re-enter old pin” void BankingSystem::dispbalance print “Enter your pin: “ Input userpin If (pin == userpin)…
6. Patient Charges Write a class named Patient that has attributes for the following data: • First name, middle name, and last name • Address, city, state, and ZIP code • Phone number ● The Patient class's init__ method should accept an argument for each attribute. The Name and phone number of emergency contact Patient class should also have accessor and mutator methods for each attribute. Next, write a class named Procedure that represents a medical procedure that has been performed on a patient. The Procedure class should have attributes for the following data: • Name of the procedure • Date of the procedure • Name of the practitioner who performed the procedure • Charges for the procedure 107 The Procedure class's __init__ method should accept an argument for each attribute. The Procedure class should also have accessor and mutator methods for each attribute Next, write a program that creates an instance of the Patient class, initialized with sample data. Then, create three…
class IndexItem { public: virtual int count() = 0; virtual void display()= 0; };class Book : public IndexItem { private: string title; string author; public: Book(string title, string author): title(title), author(author){} virtual int count(){ return 1; } virtual void display(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };class Category: public IndexItem { private: /* fill in the private member variables for the Category class below */ ? int count; public: Category(string name, string code): name(name), code(code){} /* Implement the count function below. Consider the use of the function as depicted in main() */ ? /* Implement the add function which fills the category with contents below. Consider the use of the function as depicted in main() */ ? virtualvoiddisplay(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };