The document discusses inheritance in object-oriented programming. It defines inheritance as a parent-child relationship between classes that allows sharing of behavior from the parent class to child classes. This code sharing enables reusability, which is an important aspect of OOP. Child classes can add new behavior or override existing behavior from the parent class. The document also discusses different types of inheritance like single, multiple, multi-level and hierarchical inheritance. It explains access modifiers like private, public, protected and default and how they control access to classes, methods and variables.
Java abstract class & abstract methods,Abstract class in java
Abstract classes are classes that contain one or more abstract methods. An abstract method is a method that is declared, but contains no implementation. Abstract classes may not be instantiated, and require subclasses to provide implementations for the abstract methods.
Chapter 02: Classes Objects and Methods Java by Tushar B KuteTushar B Kute
The lecture was condcuted by Tushar B Kute at YCMOU, Nashik through VLC orgnanized by MSBTE. The contents can be found in book "Core Java Programming - A Practical Approach' by Laxmi Publications.
Java abstract class & abstract methods,Abstract class in java
Abstract classes are classes that contain one or more abstract methods. An abstract method is a method that is declared, but contains no implementation. Abstract classes may not be instantiated, and require subclasses to provide implementations for the abstract methods.
Chapter 02: Classes Objects and Methods Java by Tushar B KuteTushar B Kute
The lecture was condcuted by Tushar B Kute at YCMOU, Nashik through VLC orgnanized by MSBTE. The contents can be found in book "Core Java Programming - A Practical Approach' by Laxmi Publications.
This is the presentation file about inheritance in java. You can learn details about inheritance and method overriding in inheritance in java. I think it's can help your. Thank you.
C++ Inheritance Tutorial | Introduction To Inheritance In C++ Programming Wit...Simplilearn
This presentation on the C++ Inheritance tutorial will help you learn about Inheritance in C++ and why we use inheritance in C++. You will also understand modes of inheritance and different types of inheritance in C++. You will get an introduction to inheritance in C++ programming with examples of the different types of inheritance.
Below topics are covered in this presentation:
1. What is inheritance?
2. Why do we use inheritance?
3. Modes of inheritance
4. Types of inheritance
5. Single inheritance
6. Multiple inheritances
7. Multilevel inheritance
8. Hierarchical inheritance
9. Hybrid inheritance
Encapsulation is one of the fundamental concepts in object-oriented programming (OOP). It describes the idea of bundling data and methods that work on that data within one unit, e.g., a class in Java. This concept is also often used to hide the internal representation, or state, of an object from the outside.
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This is the presentation file about inheritance in java. You can learn details about inheritance and method overriding in inheritance in java. I think it's can help your. Thank you.
C++ Inheritance Tutorial | Introduction To Inheritance In C++ Programming Wit...Simplilearn
This presentation on the C++ Inheritance tutorial will help you learn about Inheritance in C++ and why we use inheritance in C++. You will also understand modes of inheritance and different types of inheritance in C++. You will get an introduction to inheritance in C++ programming with examples of the different types of inheritance.
Below topics are covered in this presentation:
1. What is inheritance?
2. Why do we use inheritance?
3. Modes of inheritance
4. Types of inheritance
5. Single inheritance
6. Multiple inheritances
7. Multilevel inheritance
8. Hierarchical inheritance
9. Hybrid inheritance
Encapsulation is one of the fundamental concepts in object-oriented programming (OOP). It describes the idea of bundling data and methods that work on that data within one unit, e.g., a class in Java. This concept is also often used to hide the internal representation, or state, of an object from the outside.
↓↓↓↓ Read More:
@ Kindly Follow my Instagram Page to discuss about your mental health problems-
-----> https://instagram.com/mentality_streak?utm_medium=copy_link
@ Appreciate my work:
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Superclasses, and Subclasses, Overriding and Hiding Methods, Polymorphism, Inheritance Hierarchies, Super keyword, Final Classes and Methods, Abstract,
Classes and Methods, Nested classes & Inner Classes,
finalization and garbage collection.
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Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
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1. Inheritance: Definition
Inheritance: A parent-child
relationship between classes allows
sharing of the behavior of the parent
class into its child classes
one of the major benefits of object-
oriented programming (OOP) is this code
sharing between classes through
inheritance
Child class can add new behavior or
override existing behavior from parent
Reusability- building new components
by utilising existing components- is yet
another important aspect of OO
paradigm.
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Parent
Child
2. Inheritance terms
subclass, derived class, child class: Terms to describe the child in
the relationship, which accepts functionality from its parent.
class SubClassName extends SuperClassName
{
fields declaration;
methods declaration;
}
The keyword “extends” signifies that the properties of super class
are extended to the subclass. That means, subclass contains its own
members as well of those of the super class. This kind of situation
occurs when we want to enhance properties of existing class
without actually modifying it.
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3. Syntax Of Inheritance
public class Class extends ParentClass
{
//new variable or methods here
}
Example:
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4. superclass, base class, parent class: terms to describe the
parent in the relationship, which shares its functionality
extend, inherit, derive: Become a subclass of another class.
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6. Single inheritance
Single Inheritance is the simple
inheritance of all, When a class
extends another class(Only one
class) then we call it as Single
inheritance. The below diagram
represents the single inheritance
in java where Class B extends
only one class Class
A. Here Class B will be the Sub
class and Class A will be one and
only Super class.
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7. Multiple inheritance
Multiple Inheritance is nothing
but one class extending more tha
n one class. Multiple Inheritance
is basically not supported by
many Object Oriented
Programming languages such
as Java, Small Talk, C# etc.. (C++
Supports Multiple Inheritance). As
the Child class has to manage the
dependency of more than
one Parent class. But you can
achieve multiple inheritance in
Java using Interfaces.
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8. Multi-Level inheritance
In Multilevel Inheritance a
derived class will be inheriting a
parent class and as well as the
derived class act as the parent
class to other class. As seen in
the below diagram. Class B
inherits the property of Class
A and again Class B act as a
parent for Class C. In Short Class
A parent for Class B and Class
B parent for Class C.
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9. Hierarchical inheritance
In Hierarchical
inheritance one parent
class will be inherited
by many sub classes.
As per the below
example Class A will be
inherited by Class B,
Class C and Class
D. Class A will be acting
as a parent class
for Class B, Class
C and Class D.
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10. Hybrid Inheritance
Hybrid Inheritance is the
combination of both Single
and Multiple Inheritance.
Again Hybrid inheritance is
also not directly supported
in Java only through
interface we can achieve
this. Flow diagram of the
Hybrid inheritance will look
like below. As you can Class
A will be acting as
the Parent class for Class B &
Class C and Class B & Class
C will be acting
as Parent for Class D.
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11. Access modifiers
Java provides a number of access modifiers to set access
levels for classes, variables, methods, and constructors. The
four access levels are:
Default Access Modifier - No Keyword
Private Access Modifier - Private
Public Access Modifier - Public
Protected Access Modifier - Protected
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12. Default - No Keyword
Default access modifier means we do not explicitly declare an
access modifier for a class, field, method, etc.
A variable or method declared without any access control
modifier is available to any other class in the same package.
The fields in an interface are implicitly public static final and
the methods in an interface are by default public.
Example:
Variables and methods can be declared without any modifiers, as
in the following examples −
String version = "1.5.1";
boolean processOrder()
{ return true;
}
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13. Access Modifier - Private
Methods, variables, and constructors that are declared private
can only be accessed within the declared class itself.
Private access modifier is the most restrictive access level.
Class and interfaces cannot be private.
Private access modifier is the most restrictive access level.
Class and interfaces cannot be private.
Using the private modifier is the main way that an object
encapsulates itself and hides data from the outside world.
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14. Example
public class Logger
{
private String format;
public String getFormat()
{
return this.format;
}
public void setFormat(String format)
{
this.format = format;
}
}
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15. Access Modifier - Public
A class, method, constructor, interface, etc. declared public
can be accessed from any other class. Therefore, fields,
methods, blocks declared inside a public class can be accessed
from any class belonging to the Java Universe.
However, if the public class we are trying to access is in a
different package, then the public class still needs to be
imported. Because of class inheritance, all public methods and
variables of a class are inherited by its subclasses.
Example:
public static void main(String[] arguments) {
// ...
}
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16. Access Modifier - Protected
Variables, methods, and constructors, which are declared
protected in a superclass can be accessed only by the
subclasses in other package or any class within the package of
the protected members' class.
The protected access modifier cannot be applied to class and
interfaces. Methods, fields can be declared protected,
however methods and fields in a interface cannot be declared
protected.
Protected access gives the subclass a chance to use the helper
method or variable, while preventing a nonrelated class from
trying to use it.
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17. Example
The following parent class uses protected access control, to
allow its child class override openSpeaker() method −
class AudioPlayer
{
protected boolean openSpeaker(Speaker sp)
{
// implementation details
}
}
class StreamingAudioPlayer { boolean openSpeaker(Speaker sp)
{ // implementation details } }
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