Java - Object Oriented Programming Concepts

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The document discusses object-oriented programming concepts. It explains that object-oriented programming involves modeling programs around real-world objects rather than procedures. This approach defines objects that contain both data and behaviors, and allows for data encapsulation. The document contrasts object-oriented programming with procedure-oriented programming, noting that the former emphasizes data over procedures and combines data and methods into objects.

OBJECT ORIENTED PROGRAMMING
CONCEPTS
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

Programming Language
 A programming language is a computer language
programmers use to develop applications
 set of instructions for a computer to perform
specific tasks.
 The commonly used programming methodologies
are:
 Procedure-oriented programming
 Object-oriented programming (OOP)
2Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

Procedure-oriented programming
 Involves dividing a large program into a set of sub-
procedures or subprograms that perform specific
tasks.
 Module consists of single or multiple procedures.
 Most of the data is shared as global that can be
accessed from anywhere within the program.
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4Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

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an approach that provides a way of modularizing
programs by creating partitioned memory area for
both data and functions that can be used as
template for creating copies of such modules on
demand.
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13Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

14Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

Procedural vs. Object-Oriented
15Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

Procedural vs. Object-Oriented
S. No Procedural Programming Object-Oriented Programming
1 Emphasis on Procedures Emphasis on Data
2 Data is not hidden Data is hidden
3 Data and methods are
separate
Data and methods are combined
using objects
4 Data can be accessed by
external functions
Data cannot be accessed by
external functions
5 Top-down Approach in
program design
Bottom-up Approach in program
design
6 Eg. C, PASCAL Eg. C++, JAVA, Smalltalk
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The End…
48Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

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Java - Object Oriented Programming Concepts

1. OBJECT ORIENTED PROGRAMMING CONCEPTS Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

2. Programming Language  A programming language is a computer language programmers use to develop applications  set of instructions for a computer to perform specific tasks.  The commonly used programming methodologies are:  Procedure-oriented programming  Object-oriented programming (OOP) 2Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

3. Procedure-oriented programming  Involves dividing a large program into a set of subprocedures or subprograms that perform specific tasks.  Module consists of single or multiple procedures.  Most of the data is shared as global that can be accessed from anywhere within the program. 3Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

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11. an approach that provides a way of modularizing programs by creating partitioned memory area for both data and functions that can be used as template for creating copies of such modules on demand. 11Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

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14. 14Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

15. Procedural vs. Object-Oriented 15Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

16. Procedural vs. Object-Oriented S. No Procedural Programming Object-Oriented Programming 1 Emphasis on Procedures Emphasis on Data 2 Data is not hidden Data is hidden 3 Data and methods are separate Data and methods are combined using objects 4 Data can be accessed by external functions Data cannot be accessed by external functions 5 Top-down Approach in program design Bottom-up Approach in program design 6 Eg. C, PASCAL Eg. C++, JAVA, Smalltalk 16Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

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48. The End… 48Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam

Java - Object Oriented Programming Concepts

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