Super n This?????

saumyaranjan

What is super and this?plz just gv me a simple code.....using this and super...

Feb 5 '08 #1

Subscribe Post Reply

1517

nomad

664

Expert 512MB

What is super and this?plz just gv me a simple code.....using this and super...

"super" (a special variable), for use in the definitions of instance methods. The variable super is for use in a subclass. Like this, super refers to the object that contains the method. The reason super exists is so you can get access to things in the superclass that are hidden by things in the subclass.

"this"( predefined variable) keyword to call another constructor in the same class.
"this" is used in the source code of an instance method to refer to the object that contains the method. This intent of the name, this, is to refer to "this object," the one right here that this very method is in. If x is an instance variable in the same object, then this.x can be used as a full name for that variable.
nomad

Feb 5 '08 #2

RedSon

5,000

Expert 4TB

This thread should so be deleted but since nomad gave such a good response, I'm keeping it.

Feb 5 '08 #3

Similar topics

super question

by: Gonçalo Rodrigues | last post by:

Hi, Ok, now I'm really confused. What is supposed super(<class>, <subclass of class>) to do? My thought was that with the following setup:

Python

super. could there be a simpler super?

by: Kerim Borchaev | last post by:

Hello! Always when I use "super" I create a code duplication because class used as first arg to "super" is always the class where the method containing "super" was defined in: ''' class C:...

Python

super() not a panacea?

by: Clarence Gardner | last post by:

The super object is considered a solution to the "diamond problem". However, it generally requires that the ultimate base class know that it is last in the method resolution order, and hence it...

Python

Python 2.3.3 super() behaviour

by: Nicolas Lehuen | last post by:

Hi, I hope this is not a FAQ, but I have trouble understanding the behaviour of the super() built-in function. I've read the excellent book 'Python in a Nutshell' which explains this built-in...

Python

Improved super/autosuper

by: Delaney, Timothy C (Timothy) | last post by:

http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/286195 This is a new version of super that automatically determines which method needs to be called based on the existing stack frames....

Python

Why does super take a class name as the argument?

by: Chris Green | last post by:

Good day, I've done a bit of searching in the language reference and a couple pages referring the behavior of super() but I can't find any discussion of why super needs the name of the class as...

Python

super with only one argument

by: Steven Bethard | last post by:

When would you call super with only one argument? The only examples I can find of doing this are in the test suite for super. Playing around with it: py> class A(object): .... x = 'a'...

Python

What are super()'s semantics?

by: Mike Krell | last post by:

I'm reading Alex Martelli's "Nutshell" second edition. In the section called "Cooperative superclass method calling", he presents a diamond inheritance hierachy: class A(object): def...

Python

Method resolution for super(Class, obj).

by: ddtl | last post by:

Hello everybody. Consider the following code: class A(object): def met(self): print 'A.met' class B(A): def met(self):

Python

Pb with descriptor and super ...

by: Erwan Adam | last post by:

Hi all, I have a problem with the use of descriptors and super. The file is : # --------------- class Desc(object): def __init__(self, class_name): self.class_name = class_name

Python

How to turn on java script in a villaon keypad mobile phone

by: Charles Arthur | last post by:

How do i turn on java script on a villaon, callus and itel keypad mobile phone

Java

Looking to do Android software development, any suggestions? Is flutter better?

by: nemocccc | last post by:

hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?

General

How to build RAID in BIOS?

by: Hystou | last post by:

There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...

Computer Hardware

What is ONU?

by: marktang | last post by:

ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...

General

Problem With Comparison Operator <=> in G++

by: Oralloy | last post by:

Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers,...

C / C++

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

by: jinu1996 | last post by:

In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...

Online Marketing

Discussion: How does Zigbee compare with other wireless protocols in smart home applications?

by: tracyyun | last post by:

Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...

General

AI Job Threat for Devs

by: agi2029 | last post by:

Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing,...

Career Advice

Access Europe - Using VBA to create a class based on a table - Wed 1 May

by: isladogs | last post by:

The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new...

Microsoft Access / VBA