Inheritance allows objects of one class to inherit properties from another class. There are different types of inheritance including single, multilevel, hierarchical and multiple inheritance. Inheritance is achieved by defining a derived class that inherits from a base class using the class derived-class-name : visibility-mode base-class-name syntax. This allows code reuse and makes classes extensible for further use in derived classes. The example shows different classes like Student, Test and Sports with inheritance and a Result class derived from Test and Sports to demonstrate inheritance.

1. INFORMATION TECHNOLOGY
Object oriented programming with c++(2140705)
Inheritance
TA4
Name & Enrollment no:
Ashutosh Makwana - 141130116003
Meet Gandhi – 141130116014
Divyesh Mangroliya – 141130116033
Kishan Modiya – 141130116038
Jay Patel - 141130116055

2. What is Inheritance
• Inheritance is one of the important
feature of the OOP.
• Inheritance is the method by which
objects of one class gets the properties
of another class.

3. Advantages of Inheritance
Sometimes we need to repeat the code or we need
repeat the whole class properties. So It helps in
various ways.
1.) It saves memory space.
2.) It saves time.
3.) It will remove frustration.
4.) It increases reliability of the code
5.) It saves the developing and testing efforts.

4. Why we use Inheritance?
To increase the reusability of the code
and to make further usable for another
classes we use the concept of
inheritance.

5. How Inheritance can be achieved?
• In the inheritance there will be a parent child
relationship .
• There is a class called in which all the
properties are defined and generally, it is
referred as a base class.
• There is also an another class in which is
derived from the existing one are known as a
derived class.

6. How to define derived class?
A derived class can be defined by specifying its relationship with the base class in
addition to its own details.
syntax:
Class derived-class-name: visibility-mode base-class-name
{
member of derived class
};

7. Visibility mode
1.Public
2.Private
3.Protected

8. Types of Inheritance
1.) Single Inheritance
2.) Multilevel Inheritance
3.) Hierarchical Inheritance
4.) Multiple Inheritance
5.) Hybrid inheritance

9. Single inheritance
• Each class or instance object has a single parent
A
B

10. Multiple inheritance
Classes inherit from multiple base classes.
A B
C

11. Multilevel inheritance
Class is derived from another derived class
A
B
C

12. Hierarchical inheritance
A
B C D

13. Hybrid inheritance
In this type two or more types of inheritance are used to design a program.
A
B
C
D

14. Example:
#include<iostream.h>
#include<conio.h>
Class student
{
protected:
in roll_number;
public:
void get_number(int a)
{
roll_number=a;
}
void put_number(void)
{
cout<<“roll no:”<<roll_number<<“n”;
}
};

15. Class test : public student
{
protected;
float part1,part2;
public:
void get_marks(float x, float y)
{
part1=x; part2=y;
}
void put_marks(void)
{
cout<<“marks obtained:”<<“n”
<<“part1=“<<part1<<“n”
<<“part2=“<<part2<<“n”;
}
};

16. Class sports
{
protected:
float score;
public:
void get_score(float s)
{
score=s;
}
void put_score(void)
{
cout<<“sports wt:”<<score<<“nn”;
}
};

17. Class result: public test , public sports
{
Float total;
Public:
void display(void);
};
Void result:: display (void)
{
total=part1+part2+score;
put_number();
put_marks();
put_score();
cout<<“total score:”<<total<<“n”;
};

18. int main()
{
result student_1;
student_1.get_number(1234);
student_1.get_marks(27.5,33.0);
student_1.get_score(6.0);
student_1.display();
return 0;
}

19. Output:
Roll no: 1234
Marks obtained:
Part1=27.5
Part2=33
Sports wt:6
Total score:66.5

20. THANK YOU