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The online Java course will comprise of a series of lectures aided by demonstrations and followed by hands-on session on the concepts of Java Programming and JEE and spring with Hibernate, Struts that the course is designed to cover. To Know More: learning.tcsionhub.in/learn/java-complete
This is the royal reception hall of the current Javanese king who still lives here in Yogyakarta with his wife. His power has been returned to the people. Built between 1756-95, this is an example of classic Javanese architecture - pendopo (open pavilion) style.
Learn Java even if you don't know C/C++. Practice with 600 Java Programs and 2000 MCQs to perfect your learning.
What is Abstraction
Abstraction in Java, which is one of the OOPs concepts, is the process of showing only the required information to the user by hiding other details. For example, consider a mobile phone, we just know that pressing on the call button, will dial the required number. But we actually don't know the actual implementation of how a call works. This is because the internal mechanism is not visible to us. This is a real example of abstraction. Similarly, abstraction works in the same way in Object-oriented programming. In this tutorial, we will learn how to achieve abstraction using Java abstract classes and methods.
Ways to achieve Java Abstraction
We can achieve abstraction in java by below 2 ways.
You can refer to Interface in Java tutorial to understand more about achieving abstraction using an interface.
Use of Abstraction
- Provides security by hiding implementation details.
- Provides flexibility for the subclass to implement the functionality of the inherited abstract method of the superclass.
Let's discuss in detail about Java abstract class and methods.
Abstract class in Java
When we declare a class with an abstract keyword, we call it an abstract class. abstract is a non-access modifier keyword that we can use along with a class and method. An abstract class is a special class that is a superclass that contains unimplemented methods. Hence the subclass that inherits the parent abstract class should implement all the abstract methods.
Cycling the Javanese countryside in Indonesia is a delight early mornings, when the temperature is not too high. The landscape is radiating all hues of green from rice paddies in the morning sun.
6th JUNE, LONDON – The London Java Community meet for a technical session by Ian Ashworth. Showing how development testing and static analysis will help developers find critical defects in code development and accelerate the time to market. See the SkillsCast (film, code, slides) at: skillsmatter.com/podcast/java-jee/java-development-testin...