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INHERITANCE

3. CONTENTS
• CLASS
BASE CLASS
DERIVED CLASS
• OBJECT
• INHERITANCE
SINGLE INHERITANCE
MULTIPLE INHERITANCE
HIERARCHICAL INHERITANCE
MULTILEVEL INHERITANCE
HYBRID INHERITANS(Virtual
Inheritance)

4. CLASS
• Class is the base design of objects
means expanded concept of a data,
that can hold both data and functions.
• No memory is allocated when class is
created.
• It is a user defined data type.
Example : A car is consider
as a class
Methods : Engine, wheels,
steering.
Properties : company,
model, colour,
speed, etc….

5. BASE CLASS
• The class from which the subclass is
derived is called a superclass (also a
base class or a parent class).
DERIVED CLASS
• A class that is derived from another
class is called a subclass (also a derived
class, extended class, or child class).

6. OBJECT
• Object is the instance of class, means
identifiable entity with some
characteristics and behaviour.
• Memory allocated when only an
object is created.

7. EXAMPLE PROGRAM :
#include <iostream>
using namespace std;
class person
{
public:
string name;
int number;
};
int main()
{
person obj;
cout<<"Enter the Name :";
cin>>obj.name;
cout<<"Enter the Number :";
cin>>obj.number;
cout << obj.name<< obj.number;
}
Output :
Enter the name : baabtra
Enter the number:123
baabtra123

8. INHERITANCE
 Deriving new class from existing class.
 Object of one class contains the
property of another class.
 Reusability.
 We can add features to an
existing class without modifying it.

9. TYPES OF INHERITANCE
• Single Inheritance
• Hierarchical Inheritance
• Multi Level Inheritance
• Hybrid Inheritance
• Multiple Inheritance

10. SINGLE INHERITANCE
• One derived class inherits
from only one base class
• Most simplest form of
Inheritance.

11. EXAMPLE
#include<iostream>
using namespace std;
class father
{
public:
string name;
int age,pincode;
};
class child:public father
{
public:
string school;
int standard;
};
main()
{
father obj1;
child obj2;
cout<<"enter the name of father:";
cin>>obj1.name;
cout<<"enter the age of father:";
cin>>obj1.age;
cout<<"enter the pincode of father:";
cin>>obj1.pincode;
cout<<"-------------DETAIL OF CHILD--------------n";
cout<<"enter the name of child:";
cin>>obj2.name;
cout<<"enter the age of child:";
cin>>obj2.age;
cout<<"enter the pincode of child:";
cin>>obj2.pincode;
cout<<"enter the school name of child:";
cin>>obj2.school;
cout<<"enter the standard of child:";
cin>>obj2.standard;
}

12. HEIRARCHICAL INHERITANCE
• More than one derived
classes is derived from
common base class.

13. EXAMPLE
#include<iostream>
using namespace std;
class user
{
public:
string name,place;
int age;
};
class student:public user
{
public:
int rollno,classs,mark1,mark2;
};
class teacher:public user
{
public:
string department;
int teacher_id,salary;
};
main()
{
user obj;
student obj1;
teacher obj2;
cout<<"-----------------STUDENT-------------n";
cout<<"enter the name:";
cin>>obj1.name;
cout<<"enter the age:";
cin>>obj1.age;
cout<<"enter the place:";
cin>>obj1.place;
cout<<"enter the rollno:";
cin>>obj1.rollno;
cout<<"enter the class:";
cin>>obj1.classs;
cout<<"enter the mark1:";
cin>>obj1.mark1;
cout<<"enter the mark2:";
cin>>obj1.mark2;
cout<<"---------------TEACHER---------------n";
cout<<"enter the name:";
cin>>obj2.name;
cout<<"enter the age:";
cin>>obj2.age;
cout<<"enter the place:";
cin>>obj2.place;
cout<<"enter the id:";
cin>>obj2.teacher_id;
cout<<"enter the salary:";
cin>>obj2.salary;
cout<<"enter the department:";
cin>>obj2.department;
}

14. MULTI LEVEL INHERITANCE
• Derived class is derived
from another derived class.

15. EXAMPLE
#include<iostream>
using namespace std;
class grandparent
{
public:
void gshow()
{
cout<<"intelligent";
}
};
class parent:public grandparent
{
public:
void pshow()
{
cout<<"nhandsom";
}
};
class child:public parent
{
public:
void cshow()
{
cout<<"nobedience";
}
};
main()
{
grandparent obj1;
parent obj2;
child obj3;
cout<<"QUALITY OF GRANDPAn";
obj1.gshow();
cout<<"nQUALITIES OF FATHERn";
obj2.gshow();
obj2.pshow();
cout<<"nQUALITIES OF CHILDn";
obj3.gshow();
obj3.pshow();
obj3.cshow();
}

16. HYBRID INHERITANCE
• Combination of single
Inheritance , hierarchical
inheritance and
multi level inheritance.

17. EXAMPLE
#include<iostream>
using namespace std;
class grandparent
{
public:void gshow()
{
cout<<"nintelligent";
}
};
class parent:public grandparent
{
public:
void pshow()
{
cout<<"neducated";
}
};
class son:public parent
{
public:
void sshow()
{
cout<<"nobedience";
}
};
class daugter:public parent
{
public:
void dshow()
{
cout<<"nbeautiful";
}
};
main()
{
grandparent gobj;
parent pobj;
son sobj;
daugter dobj;
cout<<"QUALITY OF GRANDPA";
gobj.gshow();
cout<<"nQUALITY OF PARENT";
pobj.gshow();
pobj.pshow();
cout<<"nQUALITIES OF SON";
sobj.sshow();
sobj.pshow();
sobj.gshow();
cout<<"nQUALITIES OF DAUGHTER";
dobj.dshow();
dobj.pshow();
dobj.gshow();
}

18. MULTIPLE INHERITANCE
• Derived class is derived
from more than one
base class.

19. EXAMPLE
#include<iostream>
using namespace std;
class father
{
public:
void fshow()
{
cout<<"discipline";
}
};
class mother
{
public:
void mshow()
{
cout<<"nopen minded";
}
};
class child:public father,public mother
{
public:
void cshow()
{
cout<<"nintelligent";
}
};
main()
{
father obj1;
mother obj2;
child obj3;
cout<<"QUALITY OF FATHERn";
obj1.fshow();
cout<<"n";
cout<<"nQUALITY OF MOTHER";
obj2.mshow();
cout<<"n";
cout<<"nQUALITIES OF CHILDn";
obj3.fshow();
obj3.mshow();
obj3.cshow();
}

20. 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

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