This document discusses different types of inheritance in object-oriented programming. It defines inheritance as deriving a new class from an existing class, allowing the subclass to inherit properties from the parent class. The document describes single inheritance, where a subclass extends one parent class; multilevel inheritance, where a chain of subclasses extend parent classes; and hierarchical inheritance, where one parent class has multiple direct subclasses. It notes that Java does not support multiple or hybrid inheritance where a class can inherit from multiple parent classes.

1. Inheritance
PRESENTED BY
Siddhesh S. Palkar

2. Introduction
 It is one of the most important feature of Object
Oriented Programming
 The mechanism of deriving a new class from an
old one is called as an Inheritance.
 It is the concept that is used for reusability
purpose.

3. Super Class :
• Top located Class
• Service provider ( Its properties accessed by all its lower level
classes)
• It is also called as Base Class or Parent Class
Sub Class :
• Bottom located class
• The Inheritance allow sub class to inherits all the variables &
methods of their super class
Category of Classes on the Basis of
Inheritance

4. Types of Inheritance

5.  A structure having one and only
one parent class as well as a child
class.
 The keyword extends signifies
that the properties of a super class
are extended to the sub class.
 Child class is authorized to
access the property of Parent Class.
Single Inheritance
Parent Class
Child Class

6. class A
{
……………………
……………………
}
class B extends A
{
……………………
……………………
}
Syntax
Parent
Class
Child
Class
Sharing of
Properties

7. Multilevel Inheritance
Parent Class
Child Class
 A standard structure of single
inheritance having one parent class,
one or more intermediate class and
one child class.
 Child class as well as intermediate
class may access the properties of
upper level classes.
 The chain is known as Inheritance
path this process may be extended to
any number of levels.
Intermediate
Class

8. class A
{
……………………
……………………
}
class B extends A
{
……………………
……………………
}
class C extends B
{
……………………
……………………
}
Syntax
Parent
Class
Intermediate
Class
Child
Class

9. Hierarchical Inheritance
Parent
Class
Child
Class
 A structure having one parent
class and more than one child
classes.
 Child class must be connected
with only parent class.

10. class A
{
……………………
……………………
}
class B extends A
{
……………………
……………………
}
class C extends A
{
……………………
……………………
}
Syntax
Parent
Class
Child
Class
Child
Class

11. Limitations
 A Link is establish into single
direction.
 Java not supports Multiple
Inheritance as well as Hybrid
Inheritance
 The extends keyword permits
to connect a class with only one
class.
Sharing of Properties

12. Thank You