Is it possible to instantiate the abstract class?

Asked by Last Modified  

31 Answers

Learn Java

Follow 2
Answer

Please enter your answer

Surendran Velath

Java, Angular Trainer with 25 years of IT experience

Use anonymous class. Example: For an abstract class AbstrClass. AbstrClass ac = new AbstrClass() { public void m1() { // code of abstract method m1. } } ;
Comments
Dislike Bookmark

IT Professional Trainer with 13 years of experience in IT industry + Academics

You cannot directly create the object of an abstract class... But you can create object reference of the abstract class
Comments
Dislike Bookmark

Experienced Java Professional

Abstract classes cannot be instantiated - this is by definition and design. From the JLS, Chapter 8. Classes: A named class may be declared abstract (§8.1.1.1) and must be declared abstract if it is incompletely implemented; such a class cannot be instantiated, but can be extended by subclasses.
Comments
Dislike Bookmark

Senior Software Engineer

No, you are not creating the instance of your abstract class here. Rather you are creating an instance of an anonymous subclass of your abstract class. And then you are invoking the method on your abstract class reference pointing to subclass object.
Comments
Dislike Bookmark

Java Trainer

No, it cannot be instantiated as concrete class but subclass can be instantiated else can have implementation of abstract class as inner class where implementation will get instanciated
Comments
Dislike Bookmark

7+ year of corporate Experience in Manual & Automation(Java + Selenium) Testing in IT industry

An abstract class is a class which have either an abstract method and a non-abstract method. When the method is abstract, then the class should be abstract. The abstract class have a constructor. An abstract class is an incomplete class. Hence we should extend to another class and provide body to unimplemented...
read more
An abstract class is a class which have either an abstract method and a non-abstract method. When the method is abstract, then the class should be abstract. The abstract class have a constructor. An abstract class is an incomplete class. Hence we should extend to another class and provide body to unimplemented methods. read less
Comments
Dislike Bookmark

Expert in Java J2EE Training

No. 'Abstract' means incomplete. Abstract class is also an incomplete class. Only concrete classes can be instantiated.
Comments
Dislike Bookmark

Expert SDET

No. You cann't instantiate the abstract class
Comments
Dislike Bookmark

Trainer

No
Comments
Dislike Bookmark

10 years of Hadoop Spark Expertise

We cant instantiate the abstract class. but one we can create the object for the abstract class. using giving dummy implementations for unimplemented methods.
Comments
Dislike Bookmark

View 29 more Answers

Related Questions

What is the best site to learn Java for development?
www.javatpoint.com Is best site to learn and earn knowledge
Chai
0 0
8
simple way to explane the servlet in java
Servlet is a program wich executed in server and assists in responding to client queries..... Usually confidential tasks are done by using servlets or other server side codes
Anish
Who can provide good Java training with real-time but not institute?
If you reside in pune then i can provide real time programming in java . So you will get to know industry based java programming
Sridevi
0 0
6
Which language has the best future prospects: Python, Java, or JavaScript?
According to me, "Python" is the programming language having the best future prospect considering the current industry trend. Reason: Python is extensively used in advanced technologies such as Machine...
Atharva
0 0
5
Presently is swings and applets are important in java ?
When compared to swing, nowadays SWT is getting popular, where you can built a application like eclipse.
Mahender

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

ClassNotFoundException vs NoClassDefFoundError
ClassNotFoundException NoClassDefFoundError It is an exception and happens due to programmer’s mistake and can be recovered by updating the code. Thrown when an application tries...

Vivek R.

0 0
0
Class and Objects in Java
Class is a template or a blueprint which is used to describe an object. On other hand Object is a reference of a class which follows all the stuff written inside the class. How about taking the whole tour in the following video

Kalyani Jawade

1 0
0
Inheritance In Java
Inheritance: The process of getting properties and behaviors from one class to another class is called inheritance. Properties: Variables Behaviors: Methods The main purpose of the inheritance...
D

Deleted U.

1 0
0
JAVA OOPs Concepts (Object-Oriented Programming System)
JAVA OOPs Concepts (Object-Oriented Programming System) It is primarily having below crucial points. Without below essential points, we will never be able to achieve OOPs in java, PHP, C#, etc. Now let...

Gaurav Kothari

1 0
0
Introduction to Course Content
Video about what we are going to learn throughout the Java Training Session .

Jtcindia Java Training Center

0 0
0

Recommended Articles

Why Java is the Most Popular Programming Language

Designed in a flexible and user-friendly demeanor, Java is the most commonly used programming language for the creation of web applications and platform. It allows developers to “write once, run anywhere” (WORA). It is general-purpose, a high-level programming language developed by Sun Microsystem. Initially known as an...

Read full article >

Top 5 Reasons to Learn JavaScript

Before we start on the importance of learning JavaScript, let’s start with a short introduction on the topic. JavaScript is the most popular programming language in the world, precisely it is the language - for Computers, the Web, Servers, Smart Phone, Laptops, Mobiles, Tablets and more. And if you are a beginner or planning...

Read full article >

Some Popular IT Courses in Current Market

In the domain of Information Technology, there is always a lot to learn and implement. However, some technologies have a relatively higher demand than the rest of the others. So here are some popular IT courses for the present and upcoming future: Cloud Computing Cloud Computing is a computing technique which is used...

Read full article >

Why Should You Learn Java !

Java is the most famous programming language till date. 20 years is a big time for any programming language to survive and gain strength. Java has been proved to be one of the most reliable programming languages for networked computers. source:techcentral.com Java was developed to pertain over the Internet. Over...

Read full article >

Find Oracle Java Certification near you
Oracle Java Certification in Bangalore
Oracle Java Certification in Hyderabad
Oracle Java Certification in Pune
Oracle Java Certification in Chennai
Oracle Java Certification in Delhi
Oracle Java Certification in Mumbai
Oracle Java Certification in Kolkata
Oracle Java Certification in Noida
Oracle Java Certification in Gurgaon
Oracle Java Certification in Ghaziabad
Online Java Training

Looking for Java Training Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you