Assume that class B is derived publicly from class A. Class A has two functions, f1() and f2(). Function f2() is virtual. Assume the following statements statements: A* ptr=new B; ptr->f1(); ptr->f2(); Fill in the blank. The function f1() as defined in class ____ will be used. The function f2() as defined in class _____ will be used. In question 1, the call to ptr->f2() is an example of _______________________.

Assume that class B is derived publicly from class A. Class A has two functions, f1() and f2(). Function f2() is virtual. Assume the following statements statements: A* ptr=new B; ptr->f1(); ptr->f2(); Fill in the blank. The function f1() as defined in class __ will be used. The function f2() as defined in class _ will be used. In question 1, the call to ptr->f2() is an example of _____________________.

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter11: Inheritance And Composition

Section: Chapter Questions

Problem 29SA

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14. Assume that class B is derived publicly from class A. Class A has two functions, f1() and f2(). Function f2() is virtual. Assume the following statements statements: A* ptr=new B; ptr->f1(); ptr->f2(); Fill in the blank. The function f1() as defined in class ____ will be used. The function f2() as defined in class _____ will be used. 15. In question 14, the call to ptr->f2() is an example of _______________________.
(Program) a. Complete the following class by including functions corresponding to the two prototypes listed in the declaration section: classElevatorprivate:intelNum;//elevatornumberintcurrentFloor;//currentfloorinthighestFloor;//highestfloorpublic:Elevator( int=1,int=1,int=15);//constructorvoidrequest( int);; In this definition, the data member elNum is used to store the elevator’s number, the data member currentFloor is used to store the elevator’s current floor position, and the data member highestFloor is used to store the highest floor the elevator can reach.The constructor should allow initialization of an object’s three data members with the data passed to the constructor when an Elevator object is instantiated. The request function should code the following algorithm: If a request is made for a nonexistent floor, a floor higher than the topmost floor, or the current floor Do nothing ElseIf the request is for a floor above the current floor Display the current floor number While not at the designated floor Increment the floor number Display the new floor number EndWhile Display the ending floor number Else // the request must be for a floor below the current floor Display the current floor number While not at the designated floor Decrement the floor number Display the new floor number EndWhile Display the ending floor number EndIf b. Include the class written for Exercise 3a in a complete program, and verify that all member functions work correctly.
Mark the following statements as true or false. The member variables of a class must be of the same type. (1) The member functions of a class must be public. (2) A class can have more than one constructor. (5) A class can have more than one destructor. (5) Both constructors and destructors can have parameters. (5)
Given this class specification: Class: TimeData members: minutes (integer), seconds (integer) Write all external function definition required to make the following code compile:Time t1{5, 30}, t2;cin >> t2;t1[0] += t2[0];cout << t1 << "\n";Include a comment for each function indicating if it is a member, non-member, or friend overload for clarity.
Define the class RectangularCube in C++. A RectangularCube has three sides length(L), width (W), and Height (h), define the sides as private data fields. Include a no-argument constructor that sets all three sides to 1. The class must also have a constructor that receive parameters to initialize sides of the RectangularCube. Include get and set functions for all three data fields. Finally define the functions volume () and surfaceArea () in the class RectangularCube that use the formulas given below to calculate and return the volume and the surface area of the RectangularCube. Give the UML diagram of the class, you may use the MSOffice/Visio to create the UML class diagram (best to download and use Visual paradigm tool, or any other free UML tool). Implement the class using separate files for definition and implementation, use inclusion guard to avoid duplicate code. Make sure to include at least one inline function implementation. Do not Implement the volume () and the SurfaceArea…
Write the following program in C++. 1. Create a class called Employee that includes attributes: empid, name, points,group, and avg with data types: “int”, “String”, “double”, “String”, and “double”respectively.2. Include a constructor with parameters: empid and name.3. Include another constructor to assign default values to the attributes.4. Include a function called addPoints that is used to add a given amount to the valueof the attribute points.5. Include a function called upgradePoints that is used to increase the value of theattribute points by a given percentage.6. Include a function called removePoints that is used to reduce a given amount fromthe value of the attribute points. If the resultant value is negative then the value ofthe attribute should be set into zero.7. Include a function called computeGroup that assigns a value to the attribute groupbased on the value of the attribute points as given in the following table. Points Group points < 100 Silver 100 ≤…
Consider the following class and answer questions after this class #include <string> using namespace std; class Account { public: Account(string accountName, int initialBalance) { name=accountName; if (initialBalance > 0) { balance = initialBalance; } } void deposit(int depositAmount) { if (depositAmount > 0) { balance = balance + depositAmount; } } int getBalance() const { return balance; } void setName(string accountName) { name = accountName; } string getName() const { return name; } private: string name; int balance; }; a) Rewrite the above class. Write prototype of all functions inside class and definition outside. b) Write two friend functions to change the value of name and balance. c) Write a print function and…
Define a class named StudentGrader that has the following attributes defined within the initialization function: homeworkAvg as float midtermScore as integer finalScore as integer attendance as floata. Define a function named getOverallPctScore(). This function calculates and returns the overall grade score using the following weights for each category:
c++ Build a class Sale with private member variablesdouble itemCost; // Cost of the itemdouble taxRate; // Sales tax rateand functionality mentioned below:● Write a default constructor to set the member variable itemCost to 0 andtaxRate to 0. ● Write a parameterized constructor that accepts the parameter for eachmemberSale( double cost, double rate) ● Generate only accessors for itemCost and taxRate● Write a function double getTax( ) to calculate tax i.e take a product ofitemCost and itemRate. ● Write a function double getTotal( ) to calculate the total price of itemi.e. take a sum of itemCost and getTax( ) (calling getTax() will returnthe calculated tax on item).
Create a class Rational for performing arithmetic with fractions. Write a driver program to test the class. Provide a constructor that enables an object of this class to be initialized when it is instantiated. The constructor should contain default values in case no initializes are provided and should store the fraction in reduced form.Provide a private function to reduce numbers.Provide Public member functions for each of the following arithmatic’s functions (addition –subtraction –multiplication –division), printing in the form a/b, printing in floating point format and final overload the == and != operators to allow comparisons of two fraction numbers.Include any additional operations that you think would be useful for a rational number class.Design,implement, and test your class.
Write the following program in C++ Create a class called Employee that includes attributes: empid, name, points,group, and avg with data types: “int”, “String”, “double”, “String”, and “double” respectively.2. Include a constructor with parameters: empid and name.3. Include another constructor to assign default values to the attributes.4. Include a function called addPoints that is used to add a given amount to the valueof the attribute points.5. Include a function called upgradePoints that is used to increase the value of the attribute points by a given percentage.6. Include a function called removePoints that is used to reduce a given amount from the value of the attribute points. If the resultant value is negative then the value of the attribute should be set into zero.7. Include a function called computeGroup that assigns a value to the attribute group based on the value of the attribute points as given in the following table. Points Group points < 100 Silver 100 ≤ points…
Q1. Justify the validity of the following statements with proper and logical arguments.. a. Class definition and class implementation files are the same.b. Private members of the class can be directly accessed in the main( ) of the class.c. Functions cannot be written in the public section of the class.d. In accessor functions, value of any variable of the class cannot be changed.e. Namespace is a logical area, defining the scope of variables and functions. In a same program, more than one namespace is not allowed.f. Constructor functions are always declared as the mutator functions.g. Scope resolution operator is used while declaring the functions in the class interface.h. A class must have a get_data( ) and print( ) function.i. It is mandatory that the return type of the print( ) function in the class will always be void.j. getline( ) function can read a sequence of numbers declared as int.(do this in C++ programming)