UNIV4VINU | ENGINEERING ACHIEVERS

MODEL PAPER

B.Tech. DEGREE EXAMINATION.

Second Semester

Information Technology

IF 144 — OBJECT ORIENTED PROGRAMMING

Time : Three hours Maximum : 100 marks

Answer ALL questions.

PART A — (10 ? 2 = 20 marks)

1. How is data hiding implemented in C++?

2. Compare overloading and overriding of functions.

3. What are the functions of new and delete operators?

4. What is the need for friend functions?

5. Why do we need virtual functions?

6. How do you overload a postfix and a prefix increment operator?

7. When do we declare a coust member function?

8. What are the properties of a static class member?

9. What does system out represent in Java? How is it used?

10. What is an abstract method in Java?

PART B — (5 ? 16 = 80 marks)

11. What are the basic principles of Object Oriented Programming? Explain with

examples, how they are implemented in C++?

12. (a) Create a class vector to represent an one dimensional vector with addition

operator + to represent and a scalar product operator to represent . Use them in a main

program.

Or

(b) Can the insertion operator <<>> be member s of a

class? Give examples to justify your answer.

13. (a) What are the different kinds of inheritance? Explain them with suitable

examples.

Or

(b) Define a class Cartesian to represent a point in Cartesian co-ordinates and class

polar to represent it in polar co-ordinates . Use constructor conversion and operator

conversion functions in class Cartesian to convert object of one type into another. Use

them in a main program.