EBK PROBLEM SOLVING WITH C++
9th Edition
ISBN: 9780133834505
Author: SAVITCH
Publisher: PEARSON
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Chapter 15.3, Problem 14STE
Suppose the base class and the derived class each have a member function with the same signature. When you have a pointer to a base class object and call a function member through the pointer, discuss what determines which function is actually called—the base class member function or the derived-class function.
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Suppose the base class and the derived class each have a member function with the same signature. When you have a pointer to a base class object and call a function member through the pointer, discuss what determines which function is actually called—the base class member function or the derived-class function.
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If a derived class redefines a member function inherited from the base class, for example a printInfo function, the derived class can call the base class's version of the function but it needs to use what operator to do so?
Chapter 15 Solutions
EBK PROBLEM SOLVING WITH C++
Ch. 15.1 - Is the following program legal (assuming...Ch. 15.1 - Prob. 2STECh. 15.1 - Is the following a legal definition of the member...Ch. 15.1 - The class SalariedEmployee inherits both of the...Ch. 15.1 - Give a definition for a class TitledEmployee that...Ch. 15.1 - Give the definitions of the constructors for the...Ch. 15.2 - You know that an overloaded assignment operator...Ch. 15.2 - Suppose Child is a class derived from the class...Ch. 15.2 - Give the definitions for the member function...Ch. 15.2 - Define a class called PartFilledArrayWMax that is...
Ch. 15.3 - Prob. 11STECh. 15.3 - Why cant we assign a base class object to a...Ch. 15.3 - What is the problem with the (legal) assignment of...Ch. 15.3 - Suppose the base class and the derived class each...Ch. 15 - Write a program that uses the class...Ch. 15 - Listed below are definitions of two classes that...Ch. 15 - Solution to Programming Project 15.1 Give the...Ch. 15 - Create a base class called Vehicle that has the...Ch. 15 - Define a Car class that is derived from the...Ch. 15 - Prob. 4PPCh. 15 - Consider a graphics system that has classes for...Ch. 15 - Flesh out Programming Project 5. Give new...Ch. 15 - Banks have many different types of accounts, often...Ch. 15 - Radio Frequency IDentification (RFID) chips are...Ch. 15 - The goal for this Programming Project is to create...Ch. 15 - Solution to Programming Project 15.10 Listed below...Ch. 15 - The computer player in Programming Project 10 does...Ch. 15 - Prob. 12PP
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- Assume the definition of class houseType as given in Exercise 11. Answer the following questions. (1, 2, 3, 5, 7) a. Write the definition of the member function set so that private members are set according to the parameters. b. Write the definition of the member function print that prints the values of the data members. c. Write the definition of the constructor of the class houseType so that the private member variables are initialized to according to the parameters. d. Write a C++ statement that prints the value of the object newHouse. e. Write a C + + statement that declares an object house of type newHouse, and initializes the member variables of house to "Ranch", 3, 2, 2, 2005, 1300, 185000, and 3600.0, respectively. f. Which function members are accessors and which are mutators?arrow_forwardAssume the definition of class foodType as given in Exercise 6. Answer the following questions? (1, 2, 3, 5, 6) Write the definition of the member function set so that private members are set according to the parameters. The values of the int and double instance variables must be nonnegative. Write the definition of the member function print that prints the values of the data members. Write the definitions of the member functions getName, getcalories, getFat, getSugar, getCarbohydrate, getPotassium to return the values of the instance variable. Write the definition of the default constructor of the class foodType so that the private member variables are initialized to 0, 0. 0, 0, 0. 0, 0. 0, respectively. Write the definition of the constructor with parameters of the class foodType so that the private member variables are initialized according to the parameters. The values of the int and double instance variables must be nonnegative. Write a C + + statement that prints the value of the object fruit 2. Write a C++ statement that declares an object my Fruit of type foodType, and initializes the member variables of myFruit to Apple, 52, 0. 2, 10,13.8, and 148.0, respectively.arrow_forwardWhat is the difference between a friend function of a class and a member function of a class? (3)arrow_forward
- Suppose that a class employeeType is derived from the class personType. Give examples of members—data and functions— that can be added to the class employeeType. Also write the definition of the class employeeType that you derived from the class personType, and the definitions of the member functions of this class.arrow_forwardIf a base class has a virtual member function named check(), and a pointer variable ptr of that class is pointing to a derived object, then the code ptr->check(); calls the derived class check function if it is defined.arrow_forward140. When a virtual member function is activated, how is the correct version of the function chosen? Group of answer choices The class provides some implementation of a pure virtual function. The class does not provide any implementation of a pure virtual function. Because there is no implementation, any class with a purevirtual function is called an abstract class and no instances of an abstract class may appear in a program. The pure virtual functions are expected to be overridden in the derived classes. The class does not provide any implementation of a pure virtual function. Because there is no implementation, any class with a purevirtual function is called an abstract class and no instances of an abstract class may appear in a program. The pure virtual functions are not expected to be overridden in the derived classes. The class provides implementation of a pure virtual function. Because there is no implementation, any class with a purevirtual function is called an…arrow_forward
- X-Functions of a class can be called with the _______ operator using the name of the object, or the ________ operator using a pointer. VIII-Data or functions in the base class must be _____ or _____to be accessed from a member function of the derived class. A default argument has a value that A-can be provided by the calling function B-can be provided by function C-must have a variable value D-must have a constant value 4-An object's non-static functions have access to the _______ pointer. This pointer is passed as a parameter to non-static functions by the compiler. 2-A function not belonging to the class must be declared as a _______ of a class in order to gain access to the private data members of that class. 9-When a parameter is passed by reference to a function function cannot access the value of the parameter A temporary variable is created in the calling function to hold the value of the argument. A variable is created to hold the value of…arrow_forwardWhen an object of a derived class is instantiated, the base class’s ____________is called implicitly or explicitly to do any necessary initialization of the base-class data members inthe derived-class objectarrow_forward7. Write a program in the C++ language to create a class Rectangle with two member integer variables length and breadth. Write the parameterized constructor for the Rectangle class and also add a member function that displays the area of the rectangle in the output.arrow_forward
- True or false? - In the case of class inheritance, a field initializer is just an efficient opinion for the function Object() { [native code] } of the derived class, but it is not required.arrow_forwardA(n) __________ member function in a base class expects to be overridden in a derived class.arrow_forwardcreate a base class and derive classes all having functions with the same name, excess the function using pointer and virtual functions using c++arrow_forward
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