(Rational Class) Create a class called Rational for performing arithmetic with fractions.Write a program to test your class. Use integer variables to represent the private data of the class—the numerator and the denominator. Provide a constructor that enables an object of this class to beinitialized when it’s declared. The constructor should contain default values in case no initializersare provided and should store the fraction in reduced form. For example, the fractionwould be stored in the object as 1 in the numerator and 2 in the denominator. Provide publicmember functions that perform each of the following tasks:a) Adding two Rational numbers. The result should be stored in reduced form.b) Subtracting two Rational numbers. The result should be stored in reduced form.c) Multiplying two Rational numbers. The result should be stored in reduced form.d) Dividing two Rational numbers. The result should be stored in reduced form.e) Printing Rational numbers in the form a/b, where a is…

(Using CPP) Create a class that imitates part of the functionality of the basic data type int. Call the class Int (note different capitalization). The only data in this class is an int variable. Include member function to initialize an Int to 0. Write proper getter & setter functions to initialize it to an int value and to return this when needed. Also write a function to display it (it looks just like an int) and to add two Int values. Write a main program that exercises this class by creating one uninitialized and two initialized Int values, adding the two initialized values and placing the response in the uninitialized value, and then displaying this result. Save the file as Int.cpp.

(Protected vs. Private Base Classes) Some programmers prefer not to use protected accessbecause they believe it breaks the encapsulation of the base class. Discuss the relative merits of usingprotected access vs. using private access in base classes.

(JAVA) Create a class hierarchy to represent the different types of employees in an office who have the following job titles: manager, assistant, salesperson. Write an abstract base class called Employee that declares an abstract method: signature double calculateSalary() This class must also define the following attributes: name (String type), enrollment (String type) and base_salary (double type). Use encapsulation and provide a constructor that receives the corresponding values ​​to be stored in the respective attributes. This abstract class must be extended by the other classes representing the types of employees, so the classes Manager, Assistant and Salesperson must be written. In each class you must override the method calculateSalario so that the salary calculation is done like this: The manager receives twice the base_salary, the assistant receives the base_salary and the salesperson receives the base_salary plus a commission defined in the constructor of his class. Create a…

(JAVA) The use case description for the View Exam Grades use case is described below. Determineclasses that are needed to implement the use case. Also, define each class's attributes andmethods. Represent class and its attributes and methods using the UML class notation.Use case name: View Exam Grades.Summary: The student looks at his/her exam grade of CS2365 OOP or CS3365 SoftwareEngineering.Actor: StudentPrecondition: None.Main sequence:1. The student enters the student ID and password into the system.2. The system checks if the student ID and password are valid.3. The system displays the course numbers (e.g., CS2365 and CS3365) if the ID andpassword are valid.4. The customer chooses only a course to view the grade.5. The system displays the course grade to the student.Alternative sequence:Step 3: If the student's ID and password are invalid, the system displays an error messageand asks to enter another ID and password into the system. If the ID and password arevalid, the system…

STRICTLY FOLLOW QUESTIONS AND TEMPLATES. MAKE CODE ACCORDING TO THE TEMPLATE PROVIDE AT THE END OF THE QUESTION. MATCH INPUT AND OUTPUT AS IT IS. ---------------START---------------- Write a C++ program to call static and non-static member functions.   Strictly adhere to the Object-Oriented specifications given in the problem statement. All class names, member variable names, and function names should be the same as specified in the problem statement.   The class Student has the following data member variables. Data type Variable name int rollNumber string name   Include following member function in Student class Member Function Description display() This method is used to display the roll number and name of the student   Include the following member function in the main method. Member Function Description static void staticDisplay(Student s) This method is used to display the student object details   In the main method, obtain input from the user in the…

(Rectangle Class) Create a class Rectangle with attributes lengthand width, each of which defaults to 1. Provide methods that calculatethe rectangle’s perimeter and area. It has set and get methods for bothlength and width. The set methods should verify that length andwidth are each floating-point numbers larger than 0.0 and less than 20.0.Write a program to test class Rectangle.(Java Programming Language)

USE PYTHON PROGRAMMING LANGUAGE(OOP) 1. (Geometry: n-sided regular polygon) An n-sided regular polygon’s sides all have the same length and all of its 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. ■ A private float data field named the side that stores the length of the side. ■ A private float data field named x that defines the x-coordinate of the center of the polygon with a default value 0. ■ A private float data field named y that defines the y-coordinate of the center of the polygon with a default value 0. ■ A constructor that creates a regular polygon with the specified n (default 3), side (default 1), x (default 0), and y (default 0). ■ The accessor and mutator methods for all data fields. ■ The method getPerimeter() returns the perimeter of the polygon. ■ The method getArea() returns the area of the…

(Constructors and Destructors) What happens when a return type, even void, is specifiedfor a constructor or destructor?