Read the question carefully Please answer correctly. ii.Consider the following inheritance hierarchy:class A{protected:int x, y;public:int z;};class B: private A{private:int a, b, c;public:void set(int x, int y, int z, int a, int b, int c);};Int main(){Aobja;B objb;}Answer Correctly :a) How many data members does B have? Write their names.b) How many of B's data members are visible in B? Write down their names.c) Which members of B are accessible in main()? How will they be accessed?d) If the protected Access specifier in A is changed to public, then how many members of B will beaccessed in main() and how?e) Define the function set() without changing its signature as given above.f) Write a default constructor for the class B that does not have an empty parameter list.g) If the data members of A become private, then how they be initialized?h) Add a static data member in class B. Can we use this pointer with static members? If yes how?

a) B have 6 data members. They are x,y,z,a,b,c b) No data members are visible in B. c) x,y,z,a,b,c…

Answered: class A{ protected: int x, y; public:…

Engineering

Computer Science

class A{ protected: int x, y; public: int z; }; class B: private A{ private: int a, b, c; public:

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 1TF: Mark the following statements as true or false. a. In single inheritance, a base class can create...

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Mark the following statements as true or false. a. In single inheritance, a base class can create only one derived class. (1) b. The public members of a base class can only be inherited as public members in the derived class. (2) c. To redefine (or override) a member function of the base class in the derived class, the corresponding member function must have the same name, number, and type of parameters. (3) d. If the derived class does not override a public member function of the base class, you may specify a call to that public member function by using the name of the function and the appropriate parameter list. (3) e. The constructor of a derived class can specify a call to the constructor of the base class in the heading of the function definition. (4) f. The constructor of a derived class can specify a call to the constructor of the base class using the name of the class. (4) g. Suppose that x and y are classes, one of the member variables of x is an object of type y, and both classes have constructors. The constructor of x specifies a call to the constructor of y by using the object name of type y. (4) h. When the destructor of the derived class executes, it automatically invokes the destructor of the base class. (5) i. The class ios is the base class for all stream classes. (7) j. In protected inheritance, the private members of the base class are protected members of the derived class. (8) k. In composition, one or more members of a class are objects of another class type. (9)
Write a C++ program to implement the following level of inheritance. Write getter/setters, display function, parameterized, default and copy constructor. 2. Write a calculateSalary() function in the Typist class and override the definition in permanent and casual. 3. Write a ‘main’ function and create objects of all classes in main and call the public methods of all classes.
Write a C++ program to implement the following level of inheritance. 1. Write getter/setters, display function, parameterized, default and copy constructor.2. Write a calculateSalary() function in the Typist class and override the definition inpermanent and casual.3. Write a ‘main’ function and create objects of all classes in main and call the publicmethods of all classes.
Consider a base class Employee which contain basic information of an employee such as:Name(string)Address(string)Id(int)Gender(string)Now create two constructors A default constructor to initialize the data member with default values, A four-argument constructor to initialize data field with user-define values ( must use this key word). Getter and setter function to set and get values of data fields.Derives two classes to show Hierarchical inheritance.A department class which extends the base class employee also have some its own information such as:Department Name(string)Department Id(int).Now create two constructors a default constructor to initialize the data member with default values, a parameterized constructor to initialize data field with user-define values. Appropriate getter and setter function to set and get values of data fields. A display method to show all the records of employee along with department information.Create another child class Loan which extends the base…
Write a C++ program to implement the following level of inheritance. 1.Write getter/setters, display function, parameterized, default and copy constructor. 2. Write a calculateSalary() function in the Typist class and override the definition in permanent and casual. 3. Write a ‘main’ function and create objects of all classes in main and call the public methods of all classes
Q1: Write a C++ program to implement the following level of inheritance. Write getter/setters, display function, parameterized, default and copy Write a calculateSalary() function in the Typist class and override the definition in permanent and Write a ‘main’ function and create objects of all classes in main and call the public methods of all image is for q1 only. Q2: Class student contains roll number, name and course as data members and Input_student and display_student as member functions. Create a class exam and publicly inherit it from student class. The derived class contains an array of marks and no_of_subjects as data members, and input_marks and display_result as member functions. Overload “<=”, “()” and “+=” operators and use the overloaded operators in the main function. Create an array of objects of the exam class and display the result of 5 students.
75. The fact that the same operation may apply to two or more classes is called what? a. Inheritance b. Polymorphism c. Encapsulation d. Multiple classification
Consider a base class Employeewhich contain basic information of an employee such as: Name(string) Address(string) Id(int) Gender(string) Now create two constructors A default constructor to initialize the data member with default values, A four-argument constructor to initialize data field with user-define values ( must use this key word). Getter and setter function to set and get values of data fields. Derives two classes to show Hierarchical inheritance. A departmentclass which extends the base class employee also have some its own information such as: Department Name(string) Department Id(int). Now create two constructors a default constructor to initialize the data member with default values, a parameterized constructorto initialize data field with user-define values. Appropriate getter and setter function to set and get values of data fields. A display method to show all the records of employee along with department information. Create another child class Loanwhich extends the…
Draw an inheritance hierarchy for students at a university similar to the hierarchy shown in Fig 9.2. Use Student as the superclass of the hierarchy, then, extend Student with classes Undergraduate Student and Graduate Student. Continue to extend the hierarchy as deep (i.e., as many levels as possible). For example, Freshmen, Sophomore, Junior, and the Senior might extend Undergraduate Student and Doctoral Student and Masters Student might be subclasses of Graduate Students. After drawing the hierarchy, discuss the relationships that exist between the classes. [Note: You do not need to write any code for this exercise] I am not understanding this. Help me please do this specifically in JAVA...or Eclipse.
Consider the following inheritance hierarchy: class A{ protected: int x, y; public: int z; }; class B: private A{ private: int a, b, c; public: void set(int x, int y, int z, int a, int b, int c); }; Int main(){ Aobja; B objb; } a) If the protected Access specifier in A is changed to public, then how many members of B will be accessed in main() and how? b) Define the function set() without changing its signature as given above. c) Write a default constructor for the class B that does not have an empty parameter list. d) If the data members of A become private, then how they be initialized? e) Add a static data member in class B. Can we use this pointer with static members? If yes how?
9.If base class contains 2 nested classes, will it be possible to implement single level inheritance? i Yes, always ii Yes, only if derived class also have nested classes iii No, it will use more than 2 classes which is wrong iv No, never
Draw a class diagram consisting of a base class named Person and a derived class named Student consist of : Encapsulation Polymorphism Inheritance Base classes vs Derived classes Protected Access vs Packaged Access & Abstract Methods and Classes