22316 Object Oriented Programming Using C++ Important Questions for MSBTE Exam

1. Attempt any FIVE of the following: 10
a) State any four object oriented languages.
b) Describe use of protected access specifier used in the class.
c) Differentiate between OOP and POP. **
d) Write any two characteristics of destructor.
e) Describe meaning of following: *
               (i) ios : : in
               (ii) ios : : out
f) Give output for following code:
               class student
               {
               int roll no;
               char name [14];
               } s[6];
               void main( )
               {
               cout <<sizeof(s);
               }
g) Write syntax to define a derived class. *
h) State the use of cin and cout.
i) State use of scope resolution operator. *
j) Define class and object *
k) Describe use of static data member. *

2. Attempt any THREE of the following: 12
a) Write a C++ program to accept array of five elements, find and display smallest number from an array. **
b) Write a C++ program to declare a class ‘College’ with data members as name and college code. Derive a new class ‘student’ from the class college with data members as sname and roll no. Accept and display details of one student with college data. *
c) Write a C++ program to declare a class ‘circle’ with data members as radius and area. Declare a function getdata to accept radius and putdata to calculate and display area of circle.
d) With suitable example, describe effect of ++ and – – operators used with pointer in pointer arithmetic. *
e) Write a ‘C++’ program to find factorial of given number using loop.
f) Differentiate between run time and compile time polymorphism.
g) Describe memory allocation for objects.

3. Attempt any THREE of the following: 12
a) Write a C++ program to declare a class addition with data members as x and y. Initialize value of x and y with constructor. Calculate addition and display it using function ‘display.’
b) With suitable diagram describe structure of C++ program. *
c) Describe the concept of virtual base class with suitable example. *
d) Describe use of static data member in C++ with example.
e) Accept data for five students and display it. Write a C++ program to displya sum of array elements of array size n:
f) Describe with examples, passing parameters to base class constructor and derived class constructor by creating object of derived class.
g) Describe how memory is allocated to objects of class with suitable diagram.

4. Attempt any THREE of the following: 12
a) Write a C++ program to implement inheritance shown in following figure: *

Accept and display data of one teacher and one student using object of class ‘Info’.
b) Write a C++ program to print multiplication table of 7. (example: 7 × 1 = 7 ..... 7 × 10 = 70)
c) Write a C++ program to swap two integer numbers and swap two float numbers using function overloading. (Hint : overload swap function) *
d) Write a C++ program to count number of spaces present in contents of file. *
e) Write a C++ program to find greatest number among two numbers from two different classes using friend function.
f) Describe following terms: Inheritance, data abstraction, data encapsulation, dynamic binding.
g) State and describe visibility modes and its effects used in inheritance.
h) Differentiate between contractor and destructor

5. Attempt any TWO of the following: 12
a) Write a C++ program to overload binary operator ‘+’ to concatenate two strings.
b) Write a C++ program to write ‘Welcome to poly’ in a file. Then read the data from file and display it on screen. *
c) Write a C++ program to declare a class ‘Account’ with data members as accno, name and bal. * Accept data for eight accounts and display details of accounts having balance less than 10,000.
d) (i) Write any three rules of operator overloading.
    (ii) Write a program in C++ to overload unary ‘_’ operator to negate values of data members of class.*
e) Write a C++ program to append data from abc .txt to xyz .txt file.
f) Write a C++ program to declare a class student with members as roll no, name and department. Declare a parameterised constructor with default value for department as ‘CO’ to initialize members of object. Initialize and display data for two students. *

6. a) Attempt any TWO of the following: 12
(i) Write a C++ program to find whether the entered number is even or odd.
(ii) Write a C++ program to declare a structure employee with members as empid and empname. Accept and display data for one employee using structure variable.
b) Write a C++ program to implement following inheritance. *

Accept and display data for one programmer and one manager. Make display function virtual.
c) Write C++ program for following multilevel inheritance. **

Accept and display data for one car with all details