OBJECT ORIENTED PROGRAMMING (C++ AND JAVA)-OCTOBER-2011

THIRD  SEMESTER DIPLOMA EXAMINATION IN ENGINEERING/TECHNOLOGY-OCTOBER, 2011

OBJECT ORIENTED PROGRAMMING (C++  AND JAVA)

PART-A

(Maximum marks:15)

v  Answer the following questions in one or two sentences:

1.What is an object?

2.What is a’default constructor’?

3.Define function overloading.

4.What is hierarchial inheritance?

5.What is the use of indirection operator’8’in C++?

6.Define stream.

7.What is Unicode?

8.What is a’package’in Java?

9.What is multi threading?

10.Name the base class for character streams for input operation in Java.

PART-B

(Maximum marks:60)

(Answer one full question from each unit)

Unit-1

v  (a)Explain about private,public and protected access specifiers.(6)

          (b)What is a friend function?What are its special characteristics?.(6)

OR

v  (a)Write a short note on:

(i)Inline function (ii)Polymorphism.(6)

(b)Describe passing objects to a function.(6)

Unit-2

v  (a)Write a C++ program to overload the binary operator’+’to add two matrices of order’m*n’(6)

(b)Explain hybrid inheritance with an example(6)

         

OR

v  (a)List the rules for overloading operators.(6)

          (b)Explain how multiple inheritance is implemented in C++(6)

UNIT-3

v  (a)Explain the use of’new’and ‘delete’operators with an example.(6)

          (b)Write a C++ program to accept the names of 10 students from the keyboard and write those names to a file.After creating the file,read the contents of the file and display it.(6)

OR

v  (a)What are the different ‘modes’of opening a file in C++?Explain.(6)

          (b)Write a short note on:

(i)Dynamic memory allocation

(ii)’this’pointer.(6)

UNIT-4

v  (a)Java is compiled and interpreted.Explain.(6)

(b)Write a Java program to sort a set of’N’integer numbers in ascending order.(6)

OR

v  (a)What are command line arguments?Explian how they are used in Java.(6)

          (b)Write a short note on:

(i)’extends’keyword

(ii)abstract class.(6)

UNIT-5

v  (a)Explain about the exception handling mechanism in Java.(6)

          (b)Define an applet.Compare application programs and applets.(6)

OR

v  (a)Distinguish between Byte streams and character streams in java.(6)

(b)Write a short note on:

(i)Runnable interface

(ii)Servlet.(6)

        

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