JavaBeat

  • Home
  • Java
    • Java 7
    • Java 8
    • Java EE
    • Servlets
  • Spring Framework
    • Spring Tutorials
    • Spring 4 Tutorials
    • Spring Boot
  • JSF Tutorials
  • Most Popular
    • Binary Search Tree Traversal
    • Spring Batch Tutorial
    • AngularJS + Spring MVC
    • Spring Data JPA Tutorial
    • Packaging and Deploying Node.js
  • About Us
    • Join Us (JBC)
  • Privacy
  • Contact Us

What is super and this keyword in java?

February 21, 2013 by Krishna Srinivasan Leave a Comment

keyword : this

‘this’ is used for pointing the current class instance. It can be used with variables or methods. Look into the following example:


class Test{
	private int i=10;
	public void m(){
		System.out.println(this.i);
	}
}

In the above code this is used for the current instance. Since this is instance of a class it cannot be used inside a static method.

keyword : super

‘super’ is used for pointing the super class instance. See the following example.


class A
{
	int k = 10;
}
class Test extends A
{
	public void m()
	{
		System.out.println(super.k);
	}
}

In the above example the super keyword is used for accessing the super class variable.

Filed Under: Java Tagged With: Java

About Krishna Srinivasan

He is Founder and Chief Editor of JavaBeat. He has more than 8+ years of experience on developing Web applications. He writes about Spring, DOJO, JSF, Hibernate and many other emerging technologies in this blog.

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Follow Us

  • Facebook
  • Pinterest

As a participant in the Amazon Services LLC Associates Program, this site may earn from qualifying purchases. We may also earn commissions on purchases from other retail websites.

JavaBeat

FEATURED TUTORIALS

Answered: Using Java to Convert Int to String

What is new in Java 6.0 Collections API?

The Java 6.0 Compiler API

Copyright © by JavaBeat · All rights reserved