Maharashtra State Board of Technical Education 2008 Diploma Computer Engineering Object Oriented Programming - Question Paper
Course Name
Course code
Sample Question Paper - I
Semester
Subject
Duration
Marks: 80
Instructions : 1] All questions are compulsory.
2] Figures to the right indicates full marks.
3] Use of non-programmable calculator is permissible.
Q 1: Attempt any Eight of the following:
(2 x 8 = 16)
a) List the features of Object oriented programming.
b) Draw the structure of a c++ program.
c) What is dynamic memory allocation?
d) Describe the term - Object.
e) Define Constructor.
f) What is operator overloading?
g) Enlist the operators that can not be overloaded.
h) How to initialize a pointer?
i) What is a pure virtual function? j) Why do we need virtual function?
Q 2 : Attempt any THREE of the following : (4 x 3=12)
a) Describe the syntax of multilevel inheritance.
b) What is an abstract class? Explain with suitable example.
c) Compare overloading and overriding with examples.
d) Find error and give its justification for following overloaded function void f(int *p)
void f(int p[])
Q 3 : Attempt any THREE of the following : (4 x 3=12)
a) Explain the concept of this pointer.
b) Write a program to swap two integer values by using call by refernce.
c) What is runtime polymorphism
d) Write a program to illustrate the concept of parameterized constructor.
Q 4 : Attempt any TWO of the following: (8 x 2=16)
a) Write a program to declare a class employee, consisting of data members emp_no, and emp_name. Write the member functions accept() to accept and display() to display the data for 5 employees.
b) Write a program to find the length of a string using operator overloading.
c) Write a program to implement the inheritance as shown in figure.
Assume suitable member function to accept and display data.
Q 5 : 1) Attempt the following : (4 x 1=4)
a) In procedure oriented programming all data are shared by all functions. Is this statement TRUE? Justify your answer.
2) Attempt any ONE of the following : (8 x 1=8)
a) Write a program to count the number of characters in a word using
pointer to string.
b) Write a program to count the number of lines, spaces and tabs in a file.
Q 6 : Attempt any THREE of the following : (4 x 3=12)
a) Find errors, if any, from the following code -
#include<iostream.h> class xyz {
private: int d1; float d2; public:
void xyz (); void display ();
};
void main ()
{
xyz s;
s.showdata ();
}
b) Give syntax and use of following with respect to file.
i. Open()
ii. Close()
c) Explain stream classes and give stream classes for console operation.
d) What is the difference between opening a file with constructor function and opening a file with open() function.
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| Earning: Approval pending. |
