2. Anu. S
anusdhar4@gmail.com
www.facebook.com/AnuSasidharan
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in.linkedin.com/in/profilename
OOPS CONCEPTS IN C++

3. Disclaimer: This presentation is prepared by trainees of
baabtra as a part of mentoring program. This is not official
document of baabtra –Mentoring Partner
Baabtra-Mentoring Partner is the mentoring division of baabte System Technologies Pvt . Ltd

4. CONTENTS
OBJECT ORIENTED PROGRAMMING
DATAABSTRACTION
INHERITANCE
DATA ENCAPSULATION
POLYMORPHISM
EXAMPLE

5. OBJECT ORIENTED
PROGRAMMING
Object oriented programming approach views a
problem in terms of objects involved.

6. OBJECTS
An OBJECT is an identifiable entity with some
characteristics and behaviour.
Example: Orange
Characteristics: spherical shape
orange colour
Behaviour: juicy
tastes sweet-sour

7. CLASS
A CLASS is a group of objects that share common
properties and relationships
Example: a CAR can be considered as
a class.
Objects in this class involves the
steering,wheels,engine.
Properties involve the
company,color,model,speed,engine
capacity,etc

8. EXAMPLE
class CS{
int studentid;
char name[100];
int totmks=0;
float avg;
int total(int marks[5])
{
for(i=0;i<5;i++)
{
totmks+=marks[i];
avg=totmks/5;
}
return balance;
}
};
class
objects CS stud1,stud2;

9. DATA ABSTRACTION

10. DATAABSTRACTION
The act of representing essential features without including the
background details or explanations.
Example:
A calculator
Only the results are displayed on the
screen
The user is unaware of its internal
processing

11. INHERITANCE
The capability of
one class of
things to inherit
capabilities or
properties from
another class.

12. INHERITANCE
VEHICLES
automobiles Pulled vehicles

13. ENCAPSULATION

14. ENCAPSULATION
The wrapping up of data and operations or functions
into a single unit .

15. ENCAPSULATION
DEPARTMENT
PRODUCTION
PURCHASE
SALES
ACCOUNTS
MEMO

16. POLYMORPHISM

17. POLYMORPHISM
The ability for a data to be processed in more than one
form.

18. POLYMORPHISM
SHAPE
AREA()
CIRCLE
AREA(CIRCLE)
TRIANGLE
AREA(TRIANGLE)
RECTANGLE
AREA(RECTANGLE)

19. EXAMPLES
#include<iostream.h>
class Item{
int itemno;
float price;
public:
void getdata(int i,float j)
{
itemno=i;
price=j;
}
};

20. const int size=10;
Item order[size];
int main()
{
int ino;
float cost;
//get value for all items
for(int a=0;a<size;a++)
{
cout<<"Enter itemno & price for item"<<a+1<<"n";
cin>>ino>>cost;
order[a].getdata(ino,cost);
}
return 0;
}

21. Item 1
Itemno:111 price:155
Item 2
Itemno:125 price:89
Item 3
Itemno:201 price:95
Item 4
Itemno:352 price:213
Item 5
Itemno:444 price:250

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