This document provides an overview of Object Oriented Programming (OOP), detailing its features, benefits, and key concepts such as classes, objects, inheritance, data abstraction, data encapsulation, and polymorphism. It explains how classes are defined and the significance of object instances, as well as the advantages of OOP including reusability and security. The document also categorizes various forms of inheritance and types of polymorphism, encapsulating the essentials of the programming paradigm.

1. Submitted By – Avik Kalsa
B.TECH (ElectricalEngineering),5th
Sem
University Roll No.-14801623020
Academic Year: 2024-25
FUTURE INSTITUTE OF ENGINEERING & MANAGEMENT
[CC – 148]
UNDER MAKAUT, WB
ONTINUOUS ASSESSMENT#1
bject Oriented Programming (OE-EE-501B)
Features of Object Oriented Programming

2. What is OOP?
Object Oriented Programming (OOP)
is a programming technique in which
programs are written on the basis of objects.
Examples:
 C++
 PHP
 Java

3. Classes(Classification Of Objects)
A class is a group of objects with same attributes and
behavior.
A class is user define derived class that combines both
data and function and function and manipulate the
data.
Object is a class type variable. Objects are also called instance of
the class. Each object contains all members(variables and
functions) declared in the class :
 Identity
 State
 Behaviour
What is Object?

4. Benefits Of OOP
 Reusability
 Extensibility
 Decomposability
 Compos ability
 Understandability
 Security
Characteristics Of OOP
 Inheritance
 Data Abstraction
 Data Encapsulation
 Polymorphism

5. Inheritance
A programming technique that is
used to reuse an existing class to
build a new classis known as
inheritance.
Categories Of Inheritance
5 levels of inheritance -
-Single level
-Multilevel
-Multiple
-Hierarchical
-Hybrid

6. Data Abstraction
Data abstraction or
information hiding refers to
providing only essential
information to the outside
world and hiding their
background details.
Advantages Of Data Abstraction
 Simplification of software development.
 Testing and debugging.
 Reusability.
 Security.
 Modifications to the representation of a data type.

7. Data Encapsulation
Data Encapsulation is an Object Oriented Programming
concept that binds together the data and functions that
manipulate the data and that keep both safe from
outside interference and misuse.

8. Polymorphism
The word polymorphism is a combination of two words
poly and morphism. Poly means many and morphism means
form.
In object-oriented programming, polymorphism is the
ability of objects of different types to respond to functions of the
same name. The user does not have to know the exact type of the
object in advance. The behavior of the object can be implemented
at run time.
Types Of Polymorphism
 Virtual functions.
 Operator overloading.
 Function overloading

9. Thank you