Rajiv Gandhi Proudyogiki Vishwavidyalaya(Technical University) Computer M.C.A.(Third Semester) EXAMINATION,June,2008 model question papers

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2008 Rajiv Gandhi Proudyogiki Vishwavidyalaya(Technical University) Computer M.C.A M.C.A.(Third Semester) EXAMINATION,June,2008 Question paper

Course: M.C.A   University/board: Rajiv Gandhi Proudyogiki Vishwavidyalaya(Technical University)

M.C.A.(Third Semester) EXAMINATION,June,2008
Time : Three Hours
Maximum Marks : 100
Minimum Pass Marks : 40

Note : Attempt one question from each Unit.

Unit - I
1.(a) What are object and classes ? How does class differ from structure ?
(b) How many types of loops are available in c++ ? Explain each.

2.(a) What is a copy constructor ? What is its utility ?
(b) Design classes to represent co-ordinates of a Point-Polar Class and Cartesian Class.
Bothe the classes should have the following member functions :
(i) Constructor, with default values
(ii) Functions to set value
(iii) Function to display value
Make the polar class first; followed by the cartesian class.
The Cartesian class should contain member functions to support conversion between
Polar and Cartesian objects, i.e. conversion constructor and member conversion function
Design the main program also to demonstrate the conversion process.

Unit - II
3.(a) Overload Operator Binary "++".
(b) What are Pointer to Class member ? How do they differ from normal pointer.

4.(a) What do you understand by dimond shape ambiguity ? How it can be removed ?
(b) Overload function read which read the matrix of size m × n from the keyboard to
read integer, float and character.

Unit - III
5.(a) "The virtual attribute is inherited and is hierarchical." Comment.
(b) Illustrate the utility of friend function using an example.

6.(a) How run time polymorphism is achieved ?
(b) Write short notes on the following :
(i) Abstract class
(ii) Early and late binding

Unit - IV
7.(a) Write a program to copy a file.
(b) Discuss various stream classes in C++.

8.(a) Explain the various features that can be used to format the output.
(b) What is an Exception Specification ? Where it is used ? When do we use multiple
catch handler ?

Unit - V
9.(a) Explain object oriented modeling.
(b) Design a use case diagram for Bank.
10.(a) What are UML specification ? How do they follow object oriented approach ?
(b) Find out the classes and object for your college and draw object diagram.

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