Inheritance

Inheritance
PRESENTED BY
Siddhesh S. Palkar

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.

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

 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

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

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

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

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.

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

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

Inheritance

More Related Content

What's hot (20)

Similar to Inheritance (20)

More from Siddhesh Palkar (12)

Recently uploaded (20)

Inheritance