What are default Arguments ? Illustrate their use with an example. Explain the responsibility driver model of object oriented s/w design

3.a) b)

Define polymorphism. How do you over load new and delete operators. Explain how formatted I/O is implemented in C++.

4.a)

Why do we need virtual functions? When do we make a virtual function pure? What are the implications of making a function pure virtual function? Explain with an example how multiple inheritance is implemented in C++. Define a class to represent a bank account. Include the following members. Data members: 1. Name of the depositor. 2. A/c No 3. Balance Amount. Member Functions: 1. To assign initial values 2. To deposit an amount 3. To withdraw an amount after checking the balance. 4. To display name and balance. Write a main program to test the program.

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Code No: 411851 IV-B.Tech. I-Semester Supplementary Examinations, May-2004 OBJECT ORINENTED PROGRAMMING AND C ++ (Metallurgy and Material Technology) Time: 3 Hours Max. Marks: 70 Answer any FIVE questions All questions carry equal marks --1.a) List out the differences between object oriented programming and procedure oriented programming . b) Describe the following concepts. (i) Classes, objects and methods (ii) Inheritance (iii) Abstraction.

Define exception handling .Explain the exception handling mechanism in C++ with an example.

7.

Write a C++ program that creates a data file containing list of Telephone numbers and names. Use a class object to store set of data.

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Write short notes on: (a) Templates-Need and Advantages (b) Friend functions (c) Preprocessor directives. %%%%