Level: Bachelor Semester: Fall Year : 2010

Pokhara University

Level:  Bachelor	Semester: Fall	Year         : 2010
Programme: BE		Full Marks: 100
Course: Object Oriented Programming in C++		Pass Marks: 45
		Time         :  3hrs.

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

The figures in the margin indicate full marks.

Attempt all the questions.

1.	a)         What makes OOP a new paradigm? Explain your with suitable points. b)         Differentiate between:                                  i.            Programming in small and programming in large                                 ii.            Interface and implementation	7 8
2.	a)         Explain various access speicifiers Used in C++ with an example. b)         Differentiate between constructor and destructor. Can there be more than one destructor in a program for destroying the same object. Illustrate your answer.	7 8
3.	a)         Explain the principal of substitutability. How does inheritance provide the concept of reusability? How do you define reusability of components? b)         Differentiate between static and dynamic memory allocation. Write a simple program explaining the use of dynamic memory allocation which should include calculation of marks of 5 subjects of students and displaying the result as pass or fail. Pass mark is 45 out of 100 in each subject.	7 8
4.	a)         Differentiate between Class and Structure. Explain them with example. b)         Create a class called Student with three data members (stdnt_name [20], faculty [20], roll_no), a function called readdata () to take the details of the students from the user, and a function called displaydata () to display the details of the students. In main, create two objects of the class Student and for each object call both of the functions.	7 8
5.	a)         What is a hybrid inheritance? Explain any three pros and three cons of inheritance? b)         Develop a complete program for an institution which wishes to maintain a database of its staff. Declare a base class STAFF which include staff_id and name. Now develop records for the following staffs with the given information below:                                  i.            Lecturer (subject, department)                                 ii.            Administrative staff (post, department) Each staff members should inherit staff_id and name from base class.	8 7
6.	a)         What is polymorphism? Explain run-time polymorphism and compile time polymorphism with example each. b)         Explain about deferred methods.	10 5
7.	Write short notes on (Any Two) a)         CRC cards b)         Containership c)          Templates	2×5