Answered: __________ allows a base class…

__________ allows a base class reference variable to reference a derived class object. a. Polymorphism b. Inheritance c. Generalization d. Specialization

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter10: Introduction To Inheritance

Section: Chapter Questions

Problem 12RQ

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Using classes, design an online address book to keep track of the names, addresses, phone numbers, and dates of birth of family members, close friends, and certain business associates. Your program should be able to handle a maximum of 500 entries. Define a class addressType that can store a street address, city, state, and ZIP code. Use the appropriate functions to print and store the address. Also, use constructors to automatically initialize the member variables. Define a class extPersonType using the class personType (as defined in Example 10-10, Chapter 10), the class dateType (as designed in this chapters Programming Exercise 2), and the class addressType. Add a member variable to this class to classify the person as a family member, friend, or business associate. Also, add a member variable to store the phone number. Add (or override) the functions to print and store the appropriate information. Use constructors to automatically initialize the member variables. Define the class addressBookType using the previously defined classes. An object of the type addressBookType should be able to process a maximum of 500 entries. The program should perform the following operations: Load the data into the address book from a disk. Sort the address book by last name. Search for a person by last name. Print the address, phone number, and date of birth (if it exists) of a given person. Print the names of the people whose birthdays are in a given month. Print the names of all the people between two last names. Depending on the users request, print the names of all family members, friends, or business associates.
How many default constructors can a class have? a. A class cannot have a default constructor. b. only one c. as many as it needs d. one or more, but fewer than three
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which of the following are correct. A) struct can be used as a base class for another class. B) enum can be used as a base class for another class. C) Only a class can act as a base class for another class. D) None of the above
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Create a class Car, which contains • Three data members i.e. carName (of string type), ignition (of bool type), and currentSpeed (of integer type) • A no-argument constructor to initialize all data members with default values • A parameterized constructor to initialize all data members with user-defined values• Three setter functions to set values for all data members individually• Three getter function to get value of all data members individually• A member function setSpeed( ) // takes integer argument for setting speedDerive a class named Convertible that contains • A data member top (of Boolean type) • A no-argument constructor to assign default value as “false” to top• A four argument constructor to assign values to all data-members i.e. carName, ignition, currentSpeed and top.• A setter to set the top data member up • A function named show() that displays all data member values of invoking objectWrite a main() function that instantiates objects of Convertible class and test the…
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Following the instructions presented in the Lecture 4.5 and 4.6, complete the class Bag we discussed in the lectures. It should include all the data members, constructors, as well as all the member functions we have discussed. To be more specific, the class should have an interface shown as following: class Bag { private: int items[100]; int itemCount; public: Bag(); int getItemCount(); bool add(int newItem); void display(); bool contains(); bool remove(int a); int getSum(); }; Please complete all the member functions listed above including the default constructor. Then add following member function to the class: getMax() This function returns the largest integer stored in the Bag without changing the position of each integer stored in the Bag. Write a C++ program in a .cpp file (source file) that include above class Bag and perform following tasks: Use function rand() to randomly generate 80 integers between 0 and 99 and put them into an object of the class Bag. Use…
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