RGPV Question Paper CS Object Oriented Technology IV Sem June 2011

RGPV Question Paper

CS Object Oriented Technology IV Sem June 2011

Note:Attempt any 5 questions.Attempt one question from each Unit ,All question Carry equal marks
UNIT-I
Q.1 (a) Discuss the non-object-oriented features of C++ with programming examples. Also state the merits and demerits of object oriented methodology .
      (b) Explain Inline functions and the situations where inline expansion may not work and why?7
      (c) What is the main drawback of structured programming ? How OOP address this issue ?  6
OR
Q.2 (a) Define the following terms and give an example to show its realization in C++  :  10
            (i) Encapsulation
            (ii) Class variables and class functions
            (iii) Repeated inheritance
            (iv) Overloading
      (b) What is the differences between register variable and automatic variable ? Explain with example. What are other storage classes for variables ? 10
UNIT-II
Q.3 (a) Discuss the advantages of scope resolution operator. Is it useful when the member data of a class whose member function is invoked in derived class is public or private ?    10
      (b) Explain with example as to how would you be able to identify objects and classes in program ?    10
                                                                   OR
Q.4 (a) Write a C++ program to convert the polar co-ordinates into rectangular co-ordinates. (Hint : Polar co-ordinates (radius, angle) and rectangular co-ordinates (x, y) where x= r*cos(angle) and y=r*sin(angle)      10
      (b) Discuss in brief the following :
                 (i) Association
                (ii) Recursive association
                (iii) Many to many association
                (iv) Argument passing
                                                                UNIT-III
Q.5 (a) Discuss the role of inheritance in object oriented programming . What is public and private derivation ? 10
      (b) Explain the concept of operator-overloading. Illustrate operator-overloading concept to concatenate strings? 10
                                                                 OR
Q.6 (a) Explain the meaning of polymorphism . How is polymorphism achived at run time ? Explain with coding ?  10
      (b) Define a class Date with three variables for day, month and year.
            (i) Overload the operators << , >> to read and print Date object.
            (ii) Overload > to compare two dates.
                                                               UNIT-IV
Q.7  (a) Describe how can files be opened and closed explicitly in a program ?   6
       (b) Write a Program which asks for a file name from the keyboard , opens a file with that name for output reads a line from the keyboard character by character and write the line ontothe file ? 7
       (c) The keyword “virtual” can be used for functions as well as classes in C++ . Explain the two different uses. Give an example of each.   7
                                                                OR
Q.8  (a) Explain the concept of  streams in C++ and give the hierarchy of different types of stream ?   10
       (b) Write a program to create a file to store the information ” Data Structure” , In the same program, read the information in the created file ?       10
                                                             UNIT-V
Q.9 (a) Explain method Overloading and method overriding with giving suitable example ?    5
      (b) What is the need for and advantages of templates ? What is the difference between functions templates and class templates?     5
      (c) Write a program to read three numbers x, y, and z and evaluate R given by :         10
             R = z / (x-y)
           Use exception handling to throw an exception in case division by zero is attempted ?                                                                   
Q.10 (i) Compare the features of C++ verse Java .    5
        (ii) Define classes and methods in Java            5
       (iii) Explain the interface concepts in Java.         5
       (iv) What is the purpose of package ? Name some packages. 5

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