Summer
2015, ASSIGNMENT
PROGRAM
– MCA (REVISED FALL 2012)
SEMESTER
- 2
SUBJECT
CODE & NAME - MCA2030- OBJECT ORIENTED PROGRAMMING – C++
CREDIT
– 4 BK ID - B1641, MAX. MARKS - 60
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Q1. Write short notes on:
a) Inheritance
b) Polymorphism 5+5 = 10
Answer:
A)Inheritance
Inheritance
is one of the most powerful features of Object Oriented Programming Languages
that allows you to derive a class from an existing class and inherit all the
characteristics and behaviour of the parent class. This feature allows easy
modification of existing code and also reuses code. The
Q2. Differentiate between Classes
and Objects. Write an example program to represent a class and its object. 4+6=
10
Answer:
Classes
and objects are separate but related concepts. Every object belongs to a class
and every class contains one or
Q3. Describe operator overloading.
Which are the operators that cannot be overloaded?
5+5= 10
Answer:
Operator overloading is an interesting feature of C++ that allows programmers
to specify how various arithmetic, relational and many other operators work
with user defined data types or classes. It
Q4. What are the advantages of
Polymorphism? How it can be implemented? 5+5=10
Answer:
Advantages
·
Code is simpler to write (and read)
·
Uniform interface for clients, i.e.,
type specific details only in class code, not in the client code
·
Change in types in
Q5. Differentiate between
Containers and Iterators 5+5= 10
Answer: Containers
STL
provides a number of container types, representing objects that contain other
objects. The STL contains sequence containers and associative containers. The
standard sequence containers include vector, deque and list,
Q6. Describe the two basic exception
handling models. 5+5= 10
Answer:
If you encounter an exceptional situation in your code – that is, one where you
don’t have enough information in the current context to decide what to do – you
can send information about the error into a larger context by creating an
object containing that information and “throwing” it out of your current
context. This is called throwing an exception. Here’s what it looks
like: throw
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