Consider the following statement: my_obj->myfun(); Which of the following statements are true? 1. my_obj must be a pointer to an object. II. myfun () must be a virtual function. III. It cannot be determined from this statement alone which function my fun ( ) will actually be executed if it is part of an inheritance hierarchy. 01, 11 © II, III O I, III O I, II, III

Consider the following statement: my_obj->myfun(); Which of the following statements are true? 1. my_obj must be a pointer to an object. II. myfun () must be a virtual function. III. It cannot be determined from this statement alone which function my fun ( ) will actually be executed if it is part of an inheritance hierarchy. 01, 11 © II, III O I, III O I, II, III

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter10: Classes And Data Abstraction

Section: Chapter Questions

Problem 29SA

See similar textbooks

Similar questions

Create a C++ console application that implements this inheritance hierarchy. Note the following: The game has no "Enemy" object but it does have specific enemies. (Abstract) All enemies will have the following properties or behaviours • Damage - A value representing how much damage they would do to an enemy. Default enemy damage is 10. • Warcry- A proclaimation of their intent to do battle. Default enemies warcry is "Roar!" . Attack - An ability to combine a warcry with damage. (Ex: "Roar!" "Deal 10 damage to opponent'). Skeleton: • Damage - Base enemy damage 0 Warcry- Base enemy warcry but with the addition of "Hssssssssssss" to the end. 0 Attack - Warcry followed by two quick attacks on the opponent. Troll: ■ Damage - 1.5x base enemy damage. ■ Warcry- Base enemy warcry but with the addition of "Grrrrr" to the end. ■ Attack - Warcry followed by a single attack on the opponent. ■ Ora: Dark Orc: ■ ■ ■ Damage - 2.0x base enemy damage. ■ Warcry- Base enemy warcry with the addition of…
which application of oop can be provide a degree of freedom in the interface design option: * Inheritance O Object and class O polymorphism Friend functions
Create a C++ console application that implements this inheritance hierarchy. Note the following: The game has no "Enemy" object but it does have specific enemies. (Abstract) All enemies will have the following properties or behaviours Damage - A value representing how much damage they would do to an enemy. Default enemy damage is 10. Warcry - A proclaimation of their intent to do battle. Default enemies warcry is "Roar!" Attack - An ability to combine a warcry with damage. (Ex: "Roar!" "Deal 10 damage to opponent"). Skeleton: Damage - Base enemy damage Warcry - Base enemy warcry but with the addition of "Hssssssssssss" to the end. Attack - Warcry followed by two quick attacks on the opponent. Troll: Damage - 1.5x base enemy damage. Warcry - Base enemy warcry but with the addition of "Grrrrrrrr" to the end. Attack - Warcry followed by a single attack on the opponent. Orc: Damage - 2.0x base enemy damage. Warcry - Base enemy warcry with the addition of "AHHHHHHHHHH" to the end.…
Q#1. Write a java Program for inheritance and mention “Vehicles” as parent class and “Bike” and “Car” as child classes. Define three data member and 2 data function in each class. Override functions of parent class in child classes. Parent class implements an interface “MyInterface”. And mention all functions in this interface SUBJECT:JAVA PROGRAMMING
O In inheritance means the ability to reuse data values of one object by objects of .another class
C++ Programming. Theme : Encapsulation and inheritance Task : General setting. The program must contain: • base class X, which includes two elements x1, x2 of type int, • constructor with parameters for creating objects in dynamic memory area, • destructor, • virtual methods for viewing the current state and reinstalling base class objects to a new state. • derived class Y, including one element y of type int , • a constructor with parameters and an initializer list, passing data to the base class constructor, • overridden methods for viewing the current state of objects and reinstalling them to a new state. Create a Run method in the derived class that defines: Value х1×х2-у
Exercise on class inheritance in C++. General requirements: • All data members must be declared as “private” • No global variable is allowed to be declared and used (constants are ok) • Methods within the class and the requested functions cannot have “cin” or “cout” but it should make use of parameters and return value instead unless it is stated explicitly. • “cin” and “cout” should be used in main() or any testing functions • Please make sure that you clearly show how the C++ class, its methods and all the functions are being called and print out its return value and its results properly Please answer the following questions. 1. Define a class named “BooleanVariable” that manages a variable name (string) and a boolean value (true or false). It should not have default constructor. The class must at least provide the following methods: - toString() method that can return a string in the following format: variable-name(variable-boolean-value) such as isSuccessful(true) -…
What will be the order of execution of base class constructors in the following method of inheritance: class A:public B{ . }; Select one: a.constructor of B, then constructor of A will be executed b.only the constructor of B will be executed c.constructor of A, then constructor of B will be executed d.only the constructor of A will be executed
1. An inheritance principle is used to explore and extend the Course class. The UML of the Course is presented below: Course - courseName : String - sectionNumber : int - instructorName : String - numberOfStudentsEnrolled : int #Course() #Course(courseName : String) #Course(courseName : String, sectionNumber: int, instructorName : String) +getCapacity() : int +getCourseName() : String +setCourseName(courseName : String) : void +getSectionNumber() : int +setSectionNumber(sectionNumber : int) : void +getlnstructorName() : String +setlnstructorName(instructorName : String) : void +getNumberOfStudentsEnrolled() : int +toString(): String Part 1.1. Implement the abstract class Course strictly according to its UML one-to-one (do not include anything extra, do not miss any data fields or methods). Add comments to your program and mark where data fields, constructors, getters, setters and toString() are located, and which method is abstract or static (if any). Note: No methods should have any…
wirte a c++ program c++ 1. Student Evaluation using Inheritance TASK Step1: Create a class studentpersonal declare rollno, age, name, sex in protected mode. Step2: Using a parameterized constructor initialize the values for all the data members. Step 3: Create another class studentmark that is inherited from the base class and having the data members mark1, mark2, mark3 and mark4. Using a parameterized constructor initialize the value for mark1,mark2,mark3 and mark4. Step 4: Create another class call studentsports and declare score as protected mode. Step 5: Create a class studentresult and public inherited form studentmarks and studentsports having the data members total, avg,grade. Step6: Calculate the total and average and display the result.
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.
Consider the same program to identify the following concepts 1. Pure virtual function2. Mode of inheritance3. Dynamic Binding4. Parent class constructor call5. Access to Protected data members