My_seminar on Oop

8/8/2019 My_seminar on Oop

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Assignment:Analyze the Basic Object Oriented Principles bycomparing to the Real world and programming in frontof your Department Members and students ?

Author Of Thinking In C,

Author Of Thinking In C++

Author Of Thinking In Java

My Answer is In the form of Seminar

By BruceEckel


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Basics Of Object OrientedProgramming?

Introduction

OOP Terminology

SDLC [ Software Design Life Cycle ]


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OOP Terminology:

1.Objects & Classes

2.Abstraction

3.Encapsulation4.Polymorphism

5.Inheritance6.Definition of OOP

7.OOP languages


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1.Objects & Classes

Definition: Object is an identifiable entity withsome characteristics and behaviors. It mayrepresents a person, place ,a thing and so on.

( OR )

Object should be chosen such that they matchclosely with Real-World.

Focus On Real-World Example:

Let us say Orange is an Object. Its characteristicsare

characteristics = Spherical Shaped

= Orange in Color

Behavior =Juicy and Sweet

=Preparing Flaviuors &Chocolates


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Focus on Programming Ex:

Characteristics are Represented by its Data and

Behavior is Represented by its Functions

E.g.: STUDENT is an Object

characteristics = Roll no, Name ,Course,DOB .

Behavior = Reading() , Writing().

In C++ Characteristics=Data=Data Members

Behaviors (OR) Actions =Functions=Member Functions

Characteristics & Behaviors =Members

In Java we call as Data and Methods.


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Class

Definition 1: A class is a Template (or) User-defineddata type which can combine data as well as methodsof an object.

Definition 2: A Class is a set of Objects that sharecommon data and common Behavior.

Focus on Real life Example:

Let us Consider Rubber stamp is a Class it givesdifferent imprints. These imprints are nothing butObjects.

Note : Objects are also the Instance of Class(According to Boochs Definition.)

Rubber stamp(object class)

Imprints(object instances)


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Focus on Programming E.g.:

Let us Consider STUDENT is a Class .The studentmay be MCA,MA,B.A ,M.sc etc.

All Charecrastics are considered as data and all

Behaviors are considered to be Member functionsthese are placed in the definition of CLASS

i.e.

class student{

private:int rollno;char name[20];char course[20];public:

void read( );

void disp( );};


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Abstraction

Definition: It is the process of identifying data membersand member functions of a class relevant to the application

in hand. Identifying essential data members is known asData Abstraction .While identifying methods is known asProcedural Abstraction

Focus on Real-Life Example:

When a person is student

Roll NO

DOB

Course are ATTRIBUTES

When a person went to Bank he has different attributes


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Encapsulation Definition: Encapsulation is the

most fundamental concept of OOP.It is the process of hiding datamembers by wrapping up of dataand methods as a single unit(Called Class) to prevent beingaccessed by outside world .


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POLYMORPHISM

Definition : It is the ability of a function totake more than one form of a functioncan have many forms. Functions nameis same but parameters are different.

Focus on Real-Life Example: Let usconsider the Hollywood Actor CharleyChaplin he is the one person and can beacted on different character .


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Definition: It is the ability of a function totake more than one form of a functioncan have many forms. Functions name issame but parameters are different.

Focus on Example:void add (int x,int y)void add (float x,float y)void add (int x,int y,int z)

void add (char x,char y ) In the above example void add() is

member function, it can performsoperations on two int ,two floats, threeint and two chars .

Focus on Programming Example:


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Inheritance

Definition: Inheritance is the backbone of Object Oriented Programming .It is a Process of deriving a new class from existing Class. The NewClass gets all the properties and methods of Existing Class.

Super Class: It is class from which a class isderived. It is also known as Parent (or)" baseclass..Sub Class: It is Class which inherits its propertiesand methods from base class. It is also known aschild class (or) derived class.

Parent (or)Base Class

Child (or)Derived Class


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Focus on Real-life Example:

Animal

Amphibians Reptiles

Non-Human beings

Mammals

Human beings

Amphibians: Animals which lived in water as well as on the earth.

Reptiles: Which Crawls on the Earth.

Mammals: Which gives milk to their Babies.


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Person

Employee Engineer student

MCA B.Tech Medicine

From Top to BottomSpecialization Takes Place

From Bottom to TopGeneralization Takes place


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Definition of OOP

Definition: Object oriented Programming is amethod of implementation in which programsare Organized as a Co-Operative collection of Objects ,each of which represents an instanceof some class and whose classes are all the

Members of a hierarchy of a classes United viainheritance Relationships.

OOP languages

Eiffel

Small Talk

Ada

Java

Object Pascal

Objective C

C++


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SDLC [ Software Design Life Cycle ]

OOA (Object Oriented Analysis ) OOD (Object Oriented design) OOP (Object Oriented Programming)

OOA: It is a process of analyzing and understandinghe problem / system in terms of real-world objects,heir properties and actions.

OOD: It is a processes of modeling the solution toproblem using object oriented concepts. In OOD wemade the abstractions and Mechanisms that providehe behavior that this model requires.

OOP: Object oriented Programming is a method of

mplementation in which programs are Organized as Co-Operative collection of Objects ,each of whichepresents an instance of some class and whoselasses are all the Members of a hierarchy of alasses United via inheritance Relationships.


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Customer Request

Write Request

Design

Code

User Test

Redesign

Deliver to Customer


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According to Chinese Proverb

when you hear something ,you will forget it,When you see something ,you will Remember it

But not until you do something,will you understand it

Any Suggestions,Drawbacks.. Regardingto this Seminar Mail Meat

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My_seminar on Oop