This is a inheritance ppt based on C++ classes and objects. You will get all the information about inheritance and its types.

1. INHERITANCE
By – Preeti Rawat
Class – BCA 2nd Sem

2. CLASS & OBJECTS
 Class is a blueprint or template of an object.
 It is a user – defined datatype that has data
members & member functions.
 Objects are real world entity or instance of class,
such as pen , laptop, mobile, chair etc.
 We define a class using the keyword “class”.
 Syntax :
class class_name{
//data_members
//member_functions
};

3.  There are four fundamentals of OOPs which
are:
1. Inheritance
2. Abstraction
3. Polymorphism
4. Encapsulation
FUNDAMENTALS OF OOPS

4.  Inheritance is the capability of one class to inherit
properties from another class.
 This process of creating new classes from the existing
class is called inheritance.
 The class whose property is inherited is called the Base
Class or Super-Class or Parent Class.
 The class who inherits the property is called the Derived
Class or Sub-Class or Child Class.
INTRODUCTION TO INHERITANCE

5.  Syntax:
class base_class_name{
//data_members
//member_functions
};
class derived_class_name: access_specifier
base_class_name {
//data_members
//member_functions
};

6. PROGRAM
class rectangle{
protected:
float l,b;
public:
void get(float x,float y){
l=x;
b=y; }
void area(){
cout<<"Area = "<<l*b<<endl;}
};
class cuboid: public rectangle {
float h;
public:
void height(float z){
h=z; }
void volume(){
cout<<"Volume= "<<l*b*h<<endl; }
};

7. PRIVATE & PROTECTED MEMBERS
 Private members cannot be inherited by the
derived class.
 Only protected and public members can be
accessed by member functions of its own class and
in any class derived from its own class.
 Protected members can’t be accessed from
function outside these classes.

8. 1. Single Inheritance
2. Multiple Inheritance
3. Multi-level Inheritance
4. Hierarchical Inheritance
5. Hybrid Inheritance
TYPES OF INHERITANCE

9. SINGLE INHERITANCE
 Derivation of a class from only one base class is
called Single Inheritance.
 Syntax:
class base_class_name{
//data_members
//member_functions
};
class derived_class_name: access_specifier
base_class_name {
//data_members
//member_functions
};
Base
Class
Derived
Class

10. MULTIPLE INHERITANCE
 Here, the derived class is derive from more than one base
classes, called Multiple Inheritance.
 Syntax:
class derived_class: access_specifier base_class1,
access_specifier base_class2,… access_specifier
base_classn {
//Data_members & Member_functions
};
 Example-
class A{
//Data_members & Member_functions };
class B{
//Data_members & Member_functions };
class C: public A, public B{
//Data_members & Member_functions };
A B
C

11. MULTI-LEVEL INHERITANCE
 When a sub-class is derived from a base class
which itself is derived from another class, it is
known as Multi-level Inheritance.
 Example:
X
Y
Z

12.  Syntax:
class base_class{
//Data members & Member Function
};
class derived_class1: access_specifier
base_class {
//Data members & Member Function
};
class derived_class2: access_specifier
derived_class1 {
//Data members & Member Function
};

13. HIERARCHICAL INHERITANCE
 Derivation of many classes from single base class
is called Hierarchical Inheritance.
 Example:
Y Z
X

14.  Syntax:
class base_class{
//Data members & Member Function
};
class derived_class1: access_specifier {
//Data members & Member Function
};
class derived_class2: access_specifier base_class{
//Data members & Member Function
};

15. HYBRID INHERITANCE
 Derivation of a class involving more than one form
of Inheritance (i.e. Single Inheritance, Multiple
inheritance, Multi-Level Inheritance or
Hierarchical Inheritance), is known as Hybrid
Inheritance.
 Example:
A
C
B D
Single Inheritance
Multi-level Inheritance
Multiple Inheritance
Hierarchical Inheritance

16. Any Query??