Tribhuvan University

Institute of Science and Technology

2075

Bachelor Level / second-semester / Science

Computer Science and Information Technology( CSC166 )

Object-Oriented Programming

Full Marks: 60 + 20 + 20

Pass Marks: 24 + 8 + 8

Time: 3 Hours

Candidates are required to give their answers in their own words as far as practicable.

The figures in the margin indicate full marks.

Group A

Attempts any TWO questions

1

Explain the concept of user-defined to user-defined data conversion routine located in the destination class.

2

Depict the difference between private and public derivation. Explain derived class constructor with suitable program.

3

Briefly explain the hierarchy of stream classes. Write a program that overloads extraction and insertion operators.

Group B

Attempts any EIGHT questions

4

Write a member function called reverseit() that reverses a string ( an array of character). Use a for loop that swaps the first and last characters, then the second and next-to last characters and so on. The string should be passed to reverseit() as an argument.

5

What is the principle reason for using default arguments in the function? Explain how missing arguments and default arguments are handled by the function simultaneously?

6

“An overloaded function appears to perform different activities depending the kind of data send to it” Justify the statement with appropriate example.

7

Explain the default action of the copy constructor. Write a suitable program that demonstrates the technique of overloading the copy constructor.

8

Briefly explain types of inheritance used in object oriented Programming.

9

Create a real scenario where static data members are useful. Explain with suitable example.

10

Create a function called swaps() that interchanges the values of the two arguments sent to it (pass these arguments by reference).  Make the function into a template, so it can be used with all numerical data types (char, int, float, and so on). Write a main() program to exercise the function with several types.

11

Explain how exceptions are used for handling C++ error in a systematic and OOP-oriented way with the design that includes multiple exceptions.

12

How is character I/O different from Binary I/O? Explain with examples.