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Posted By: RAFI Member Level: Gold Posted Date: 16 Jun 2008
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2006 Indira Gandhi National Open University (IGNOU) B.C.A CS-72 : C++ AND OBJECT ORIENTED PROGRAMMING, JUNE - 2006 Question paper
CS-72 : C++ AND OBJECT ORIENTED PROGRAMMING
JUNE - 2006
Note: Question one is compulsory. Answer any three from the rest.
1. (a) Explain the concept of encapsulation and information hiding in an object oriented paradigm, with the help of an example in C++.
(b) Explain the dynamic binding with the help of an example. Give its advantages and disadvantages.
(c) Differentiate between function and operator overloading. Also give an example of each.
(d) What are public and private enheritance? Why do we need different access specifies?
(e) Explain the utility of the friend function using an appropriate example.
(f) Write a String class in C++ which should include the member function to calculate the length of the String.
2. (a) If a base class and derive class each include a member function with the same name, which member function will be called by an object of a derive class and why?
(b) Write a program to read and display information about employees and manages. Employee is a class that contains employee_no, name and address. Manager class contains all the information of the employee class and the list of employee class and the list of employee working under the manager.
3. (a) Define a class template. What are its advantage?
(b) Write a template function for exchanging(swapping) the values between two variables. Use this function in main() for int, double and char type of variables.
4. (a) What is an interaction diagram? Explain the steps involved in drawing such a diagram, with the help of an example.
(b) Explain the concept of virtual functions. Give three example of the use of such functions.
5. Explain the following with the help of an example each:
(i) Static data member
(ii) Object Oriented Programming
(iii) File stream in C++
(iv) Exception Handling
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