CSE 219
Object oriented Paradigm and
Programming
By
G.SasiKumar., M.E., (Ph.D).,
Assistant Professor
School of Computing Science and Engineering
VIT University
09/04/131 VIT - SCSE
 Instructor
 G. Sasi Kumar , sasichief@gmail.com
 Venue : SJT – 302
 Textbook
 K.R. Venugopal, T. Ravishankar, and Rajkumar,
"Mastering C++”, Tata McGraw Hill, 2008 .
 Requirements
 Homework x2 5% (do not copy)
 CAT 30%
 Quiz & Oral presentation 15%
 Final exam 50%
Course Webpage
intranet.vit.ac.in
https://www.facebook.com/groups/oopskg2013/
Mail: oopskg2013@groups.facebook.com
Office: SasiKumar Gurumurthy
 SJT -310-A08
 mobile:8870919338
 g.sasikumar@vit.ac.in
Software
1. System software
2. Application software
System software: Directly interacts with the computer
system. Operating system, compiler, interpreter are
examples for this.
Application software: All the programs written by a
user with the help of any software is called as application
software.
09/04/134 VIT - SCSE
Introduction to Programming
Languages
The shift in programming language is categorized as
following:
1. Monolithic Programming
2. Procedural Programming
3. Structural Programming
4. Object Oriented Programming
09/04/135 VIT - SCSE
Monolithic Programming
This programming consists only global data and sequential
code.
Assembly language and BASIC
09/04/136 VIT - SCSE
Procedural Oriented Programming
Mainly comprises of algorithms.
FORTRAN and COBOL
The important features of Procedural Programming are
Emphasis is on doing things (algorithms)
Large programs are divided into smaller programs known as
functions.
Most of the functions share global data
Data move openly around the system from function to function
Functions transform data from one form to another
Employs top-down approach in program design
09/04/137 VIT - SCSE
Structured programming
Pascal and C
Structured programming is based upon the algorithm rather than
data
Programs are divided into individual modules that perform
different task.
Introduction of user defined data types
09/04/138 VIT - SCSE
Object Oriented Programming
C++, Smalltalk, Eiffel, Java, C# etc.
Object oriented programming is a programming
methodology that associates data structures with a set of
operators, which act upon it.
Depending on the object features supported, the languages are
classified into two categories:
Object-Based Programming Languages
Object-Oriented Programming Languages
09/04/139 VIT - SCSE
Object-based programming languages support encapsulation
and object identity without supporting inheritance, polymorphism
and message communications.
Example ADA.
Object – Based language = Encapsulation + Object Identity
Object-Oriented Programming Language incorporate all the
features of object-based programming languages along with
inheritance and polymorphism.
Object-oriented programming language = Object Based
Language + Polymorphism +Inheritance
09/04/1310 VIT - SCSE
Features of Object oriented Programming
Improvement of over the structured programming languages.
Emphasis on data rather than algorithm
Data is hidden and cannot be accessed by external functions
Objects may communicate with each other through functions
New data and functions can be easily added whenever
necessary
Follows bottom –up approach in program design
09/04/1311 VIT - SCSE
Basic concepts of object oriented
programming
Objects – data and function
Classes
Data Abstraction : the act of representing essential features
without including the background details or explanations.
Encapsulation – data and function into a single unit
Inheritance
Polymorphism
Message Passing : It is the process of invoking an operation
on an object.
Ex: ob.add(50);
09/04/1312 VIT - SCSE
Advantages of OOP
Through inheritance we can eliminate redundant
(Unnecessary) code and extend the use of existing classes.
The principle of data hiding helps for security.
It is possible to have multiple objects.
It is easy to partition the work in a project based on objects.
Object-oriented systems can be easily upgraded from small to
large systems.
Message passing techniques for communication between
objects
Code reuse is possible.
09/04/1313 VIT - SCSE
Applications of OOP
Real time systems
Simulation and modeling
Object oriented databases
Hypertext and hypermedia
AI and expert systems
Neural networks and parallel programming
Office automation systems
CIM / CAM / CAD systems
09/04/1314 VIT - SCSE

1 Intro Object Oriented Programming

  • 1.
    CSE 219 Object orientedParadigm and Programming By G.SasiKumar., M.E., (Ph.D)., Assistant Professor School of Computing Science and Engineering VIT University 09/04/131 VIT - SCSE
  • 2.
     Instructor  G.Sasi Kumar , sasichief@gmail.com  Venue : SJT – 302  Textbook  K.R. Venugopal, T. Ravishankar, and Rajkumar, "Mastering C++”, Tata McGraw Hill, 2008 .  Requirements  Homework x2 5% (do not copy)  CAT 30%  Quiz & Oral presentation 15%  Final exam 50%
  • 3.
  • 4.
    Software 1. System software 2.Application software System software: Directly interacts with the computer system. Operating system, compiler, interpreter are examples for this. Application software: All the programs written by a user with the help of any software is called as application software. 09/04/134 VIT - SCSE
  • 5.
    Introduction to Programming Languages Theshift in programming language is categorized as following: 1. Monolithic Programming 2. Procedural Programming 3. Structural Programming 4. Object Oriented Programming 09/04/135 VIT - SCSE
  • 6.
    Monolithic Programming This programmingconsists only global data and sequential code. Assembly language and BASIC 09/04/136 VIT - SCSE
  • 7.
    Procedural Oriented Programming Mainlycomprises of algorithms. FORTRAN and COBOL The important features of Procedural Programming are Emphasis is on doing things (algorithms) Large programs are divided into smaller programs known as functions. Most of the functions share global data Data move openly around the system from function to function Functions transform data from one form to another Employs top-down approach in program design 09/04/137 VIT - SCSE
  • 8.
    Structured programming Pascal andC Structured programming is based upon the algorithm rather than data Programs are divided into individual modules that perform different task. Introduction of user defined data types 09/04/138 VIT - SCSE
  • 9.
    Object Oriented Programming C++,Smalltalk, Eiffel, Java, C# etc. Object oriented programming is a programming methodology that associates data structures with a set of operators, which act upon it. Depending on the object features supported, the languages are classified into two categories: Object-Based Programming Languages Object-Oriented Programming Languages 09/04/139 VIT - SCSE
  • 10.
    Object-based programming languagessupport encapsulation and object identity without supporting inheritance, polymorphism and message communications. Example ADA. Object – Based language = Encapsulation + Object Identity Object-Oriented Programming Language incorporate all the features of object-based programming languages along with inheritance and polymorphism. Object-oriented programming language = Object Based Language + Polymorphism +Inheritance 09/04/1310 VIT - SCSE
  • 11.
    Features of Objectoriented Programming Improvement of over the structured programming languages. Emphasis on data rather than algorithm Data is hidden and cannot be accessed by external functions Objects may communicate with each other through functions New data and functions can be easily added whenever necessary Follows bottom –up approach in program design 09/04/1311 VIT - SCSE
  • 12.
    Basic concepts ofobject oriented programming Objects – data and function Classes Data Abstraction : the act of representing essential features without including the background details or explanations. Encapsulation – data and function into a single unit Inheritance Polymorphism Message Passing : It is the process of invoking an operation on an object. Ex: ob.add(50); 09/04/1312 VIT - SCSE
  • 13.
    Advantages of OOP Throughinheritance we can eliminate redundant (Unnecessary) code and extend the use of existing classes. The principle of data hiding helps for security. It is possible to have multiple objects. It is easy to partition the work in a project based on objects. Object-oriented systems can be easily upgraded from small to large systems. Message passing techniques for communication between objects Code reuse is possible. 09/04/1313 VIT - SCSE
  • 14.
    Applications of OOP Realtime systems Simulation and modeling Object oriented databases Hypertext and hypermedia AI and expert systems Neural networks and parallel programming Office automation systems CIM / CAM / CAD systems 09/04/1314 VIT - SCSE