ANNA UNIVERSITY :: CHENNAI - 600 025
MODEL QUESTION PAPER
B.E. DEGREE PROGRAMMES
IF 144 — OBJECT ORIENTED PROGRAMMING |
| Time: 3hrs | Max Marks: 100 |
| Answer all Questions |
| PART - A (10 x 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 x 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) |
| 12.b) | Can the insertion operator << and the extraction operator >> be members of a class? Give examples to justify your answer. |
| 13.a) | What are the different kinds of inheritance? Explain them with suitable examples. |
| (OR) |
| 13.b) | Define a class Cartesian to represent a point in Cartesian co-ordinates (x, y) and class polar to represent it in polar co-ordinates (r, 0) . Use constructor conversion and operator conversion functions in class Cartesian to convert object of one type into another. Use them in a main program. |
| 14.a) | Write a Java program to illustrate the difference between an instance variable and a class variable. |
| (OR) |
| 14.b) | Write a Java program that creates a Date class and use it with appropriate members and methods. |
| 15.a) | Write a Java applet that asks the user to enter two floating point numbers, obtain the two numbers from the user and draws the sum and product of the two numbers. |
| (OR) |
| 15.b) | Define a Java method to find the greatest among three numbers. Write a Java applet that obtains three numbers from the user and displays the largest using the method. |
