Index
Definition
Usefulness
Why they cannot be instantiated?
How to use abstract classes?
Purpose of abstract class
What is Concrete class?
Examples
Characteristics explained
When to use abstract class and methods in java kritikumar16
Java is a most popular, robust, secure, platform independent and multithreading based high level programming language, because of this it is preferably used by many programmers.
Index
Definition
Usefulness
Why they cannot be instantiated?
How to use abstract classes?
Purpose of abstract class
What is Concrete class?
Examples
Characteristics explained
When to use abstract class and methods in java kritikumar16
Java is a most popular, robust, secure, platform independent and multithreading based high level programming language, because of this it is preferably used by many programmers.
What are Abstract Classes in Java | EdurekaEdureka!
YouTube Link: https://youtu.be/5X0Y--92pMI
**Java, J2EE & SOA Certification Training - https://www.edureka.co/java-j2ee-training-course **
This Edureka PPT on Abstract Classes in Java will provide you with detailed knowledge about Abstract Classes in Java and along with it, This PPT will also cover some examples of Abstract Classes in Java, in order to provide you with a deep understanding about their functionality. This PPT will cover the following topics:
What are Abstract Classes in Java?
Why do we need an Abstract Classes in Java?
Rules for using Abstract Classes in Java
Ways to achieve Abstraction in Java
The Syntax for Abstract Classes
Practical Examples of Abstract Classes
Difference between Interface and Abstract Class
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Inheritance is the mechanism that allows programmers to create new classes from existing class. By using inheritance programmers can re-use code they've already written.
What are Abstract Classes in Java | EdurekaEdureka!
YouTube Link: https://youtu.be/5X0Y--92pMI
**Java, J2EE & SOA Certification Training - https://www.edureka.co/java-j2ee-training-course **
This Edureka PPT on Abstract Classes in Java will provide you with detailed knowledge about Abstract Classes in Java and along with it, This PPT will also cover some examples of Abstract Classes in Java, in order to provide you with a deep understanding about their functionality. This PPT will cover the following topics:
What are Abstract Classes in Java?
Why do we need an Abstract Classes in Java?
Rules for using Abstract Classes in Java
Ways to achieve Abstraction in Java
The Syntax for Abstract Classes
Practical Examples of Abstract Classes
Difference between Interface and Abstract Class
Complete Java Playlist: http://bit.ly/2XcYNH5
Complete Blog Series: http://bit.ly/2YoabkT
Follow us to never miss an update in the future.
YouTube: https://www.youtube.com/user/edurekaIN
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Facebook: https://www.facebook.com/edurekaIN/
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Castbox: https://castbox.fm/networks/505?country=in
Inheritance is the mechanism that allows programmers to create new classes from existing class. By using inheritance programmers can re-use code they've already written.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
2. Abstraction
Consider a real-life example of a man driving a car.
The man only knows that, pressing the accelerators will increase the speed of car or applying
brakes will stop the car.
But he does not know about how on pressing the accelerator the speed is actually increasing,
he does not know about the inner mechanism of the car or the implementation of accelerator,
brakes etc in the car.
This is what abstraction is.
3. Abstract Classes and Abstract Methods
In java, Abstraction is achieved by interface or abstract class.
We can achieve 100% of abstraction by using interface.
Abstract class is declared with abstract keywords.
Abstract method is declared without an implementation.
Abstract class may or may not have abstract methods.
4. Abstract Classes and Abstract Methods
Abstract methods can be redefined or can be overriding in subclass.
Any class that contain at least one abstract method means, that class must declared
with abstract keywords.
Can’t access abstract class directly with new operator.
Abstract class can have parameterized constructors and default constructor is always
present in the abstract class.
5. Abstraction Example
abstract class Animal {
public abstract void animalSound();
public void sleep() {
System.out.println("Zzz");
}
}
class Pig extends Animal {
public void animalSound() {
System.out.println("The pig says: wee wee");
}
}
class MyMainClass {
public static void main(String[] args) {
Pig myPig = new Pig();
myPig.animalSound();
myPig.sleep();
}
}
6. youtube:Zooming | https://github.com/Soba-Arjun/
Advantages of Abstraction
It reduces the complexity of viewing the things.
Avoids code duplication and increases reusability.
Helps to increase security of an application or program as only important details
are provided to the user.