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What is wrong with the following code? (8)class classA //Line 1 protected: //Line 2 void setX(int a); //Line 3 //Postcondition: x = a; //Line 4 private: //Line 5 int x; //Line 6 ; //Line 7 . . . int main() //Line 8 //Line 9 classA aObject; //Line 10 aObject.setX(4); //Line 11 return 0; //Line 12 […]

Assume the definitions of the classes smart and superSmart as given in Exercise 14.  Suppose that the following statements are in a user program (client code): smart smartObject; superSmart superSmartObject; Mark the following statements as valid or invalid. If a statement is invalid, explain why. (2, 3, 4) a. int smart::sum()     return x +

Explain the difference between overriding and overloading a member function of a base class in a derived class. (3) Suppose class two is derived from class one. To avoid multiple inclusion of these classes, which preprocessor directives are used in the header files containing the definitions of these classes. Justify your answer by giving an

Suppose that class three is derived from class two and class two is derived from class one and each class has instance variables. Suppose that an object of class three enters its scope, so the constructors of these classes will execute. Determine the order in which the constructors of these classes will execute. (4)

Consider the following class definition: (8) class base  public:    void setXYZ(int a, int b, int c);     void setX(int a);     int getX() const    return x;       void setY(int b);      int getY() const  return y;       int mystryNum()    return (x * y – z * z);           void print()

Explain how in a public inheritance, the members of the base class are inherited by a derived class. (8) Explain the difference between the private and protected members of a class. (8) Explain the difference between the protected and public members of a class. (8) Assume the declaration of Exercise 24. (8) a. Write the

a. The class ifstream is derived from which class? (7)b. The class ofstream is derived from which class? (7) Explain how in a private inheritance, the members of the base class are inherited by a derived class. (8) Explain how in a protected inheritance, the members of the base class are inherited by a derived

Assume the declaration of Exercise 14. (3, 4) a. Write the definition of the default constructor of smart so that the instance variables of smart are initialized to 0. b. Write the definition of the default constructor of superSmart so that the instance variables of superSmart are initialized to 0. c. Write the definition of

Element 2, examines one emerging technology and one foresight method (e.g. horizon scanning, mapping, expert consultation, speculative fiction etc.) related to material covered in class. In Element 2, the 2,000 word future scenario, students will apply the foresight method to the emerging technology to develop their own forecast of a plausible digital future for that

Essay Prompt. Choose a work of 2-dimensional art/ design (painting, illustration, photography, graphics, cinematography, web, animation, etc… ) The work can be contemporary or historical and from any part of the world. It doesn’t matter if the subject is considered fine/high art by a “famous” artist or something created by a friend so long as