
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Create a class called STRING, the class has two private member str and size of String and int type respectively. Provide a copy constructor for the class that initialize objects with other object. Write member function for the class that show the string and size for each object.
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- /* Interface File: Movie.h Declaration of Movie Class (Variables - "Data Members" or "Attributes" AND Functions - "Member Functions" or "Methods") */ #ifndef MOVIE_H // Include Guard or Header Guard -If already defined ignore rest of code #define MOVIE_H // Otherwise, define MOVIE_H #include<string> // Note: Not "using namespace std;" or even "using std::string" class Movie { private: std::string title = ""; // Explict scope used --> std::string int year = 0; public: Movie(std::string title = "", int year = 1888); // Declaring a Default Constructor ~Movie(); // A Destructor used for freeing up resources void set_title(std::string title_param); std::string get_title() const; // "const" safeguards class variable changes within function std::string get_title_upper() const; void set_year(int year_param); int get_year() const; }; //…arrow_forwardDouble Bubble For this exercise you need to create a Bubble class and construct two instances of the Bubble object. You will then take the two Bubble objects and combine them to create a new, larger combined Bubble object. This will be done using functions that take in these Bubble objects as parameters. The Bubble class contains one data member, radius_, and the corresponding accessor and mutator methods for radius_, GetRadius and SetRadius. Create a member function called CalculateVolume that computes for the volume of a bubble (sphere). Use the value 3.1415 for PI. Your main function has some skeleton code that asks the user for the radius of two bubbles. You will use this to create the two Bubble objects. You will create a CombineBubbles function that receives two references (two Bubble objects) and returns a Bubble object. Combining bubbles simply means creating a new Bubble object whose radius is the sum of the two Bubble objects' radii. Take note that the CombineBubbles function…arrow_forwardTwo data members: feet(int) and inches(float) Two overloaded constructors: one that takes no argument and the other that takes two arguments. Zero argument constructor initializes data members from 0 whereas two argument constructor initializes data members from the passed arguments. Two getters and two setters corresponding to two data members. A member function named toDecimal that converts a distance to decimal, e.g., if a distance equals 2 feet and 6 inches then it would become 2.5 in decimal. A member function named toString that returns a string representation of a distance, e.g., if a distance equals 2 feet and 6 inches then the corresponding string representation should be 2’-6”. by using C++arrow_forward
- N-SIDED REGULAR POLYGON) In an n-sided regular polygon, all sides have the same length and all angles have the same degree (i.e., the polygon is both equilateral and equiangular). Design a class named RegularPolygon that contains: ▪ A private int data field named n that defines the number of sides in the polygon with default value 3. ▪ A private double data field named side that stores the length of the side with default value 1. A private double data field named x that defines the x-coordinate of the polygon's center with default value 0. ▪ A private double data field named y that defines the y-coordinate of the polygon's center with default value 0. A no-arg constructor that creates a regular polygon with default values. A constructor that creates a regular polygon with the specified number of sides and length of side, centered at (0, 0). A constructor that creates a regular polygon with the specified number of sides, length of side, and x- and y-coordinates. ▪ The accessor and…arrow_forwardCreate an Account class that a bank might use to represent customers’ bank accounts. Include a data member to represent the account balance. Provide a constructor that receives an initial balance and uses it to initialize the data member. The constructor should validate the initial balance to ensure that it is greater than or equal to 0. If not, set the balance to 0. Provide three member functions:- credit($amount) should add amount to the current balance- debit($amount) should ensure that amount does not exceed the current balance and then reduce the current balance by amount. The balance should not change if amount exceeds the balance.- getBalance() should return the current balanceNote: Create a set of test data and then write a program to test the class.arrow_forwardPersonal Information Class: Design a class called Employee that holds the following data about an employee: name ID number Department Job Title Class. Store your class in a separate file called employee.py. Your class will have an initializer method that will be passed the information entered by the user as arguments. Write appropriate accessor and mutator methods for each data attribute. Write a __str__ method to print the contents of the class (see example of __str__ on p. 523). Main program: Your main program should create three instances of the class. Your program should get the information from the user and pass it as parameters to the initializer method. Using the __str__ method invoked by the print function, the program should display the personal information for the three individuals. Output and Sample Dialog: Enter employee name: Mary Smith Enter employee ID: 123456 Enter department: Accounting Enter position: Accountant Enter employee name: Joe Morales Enter…arrow_forward
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