Print This Article Post Comment Add To Favorites Email to Friends Ezine Ready

In Java , How Can We Inherit The Constructor

By: Infocampus Home | Computers-and-Technology


What is constructor?
Constructor is a special type of method that always holds the class name and it is mainly used to initialize the object. It construct the values for the object .So it is known as constructor.

Constructor is of two types:
[i] Zero argument constructor(default constructor)
[ii] Parameterized constructor

Zero Argument Constructor: When we don’t pass any argument in constructor. That is known as zero argument constructor.If user defined constructor is not there then compiler will generate zero argument constructor known as default constructor.

Parameterized constructor: When we pass the argument in constructor known as parameterized constructor. Advance java training in bangalore In it we can pass any no. Of argument.

Properties of Constructor :
[1]It is same as the class name.
[2]It does not having any return type or return statement.
[3]It has access modifiers.
[4]It is neither static nor nonstatic.

What is Constructor Chaining:
Calling a constructor from another constructor , is known as constructor chaining.If we want to access the properties of any constructor then we have to use constructor chaining.
We know that constructor is neither static nor non static. So we can’t inherit the constructor.But using constructor chaining we can acquire the properties of another constructor.
Note: Constructor is a special type of method that always holds the class name.java/j2ee classes bangalore It is not a method but it consist of the same behaviour as a method.

How can we achieve the constructor chaining ?
There is two ways to achieve the constructor chaining:
[1] super() : super() (call to super) is used to call the super class constructor. That mean sub class is able to access the properties of constructor which are present in super class. For accessing the super class constructor properties inheritance is must.
If user is not defined the super() then compiler generates as the first statement in the class.But if user defined constructor is there compiler never generate java course in bangalore the super().
[2] this(): this()(call to this) is used to call the same class constructor. That mean we can achieve the properties of constructor which are present in the same class. For using this() constructor overloading is necessary. Without constructor overloading we can’t get the properties of same class.
Note: super() and this() should be the first statement. Because of that both can’t be present in the same class.

What is need of constructor chaining ?
[1]Access the properties: Constructor chaining is used to access the properties of constructor in the same class or in another class.
[2]Code optimization :Using constructor chaining java training center bangalore we achieve code optimization ,means lines of code get reduced.
[3]Maintenance easy : Using constructor chaining maintenance easy because if we keep the common functionality in super class constructor.So we need to change only in super class constructor.
[4]Memory will get reduced : If same code will repeat at multiple times then more memory will used. to avoid this we use constructor chaining, we access the same code.Then less memory used.

Difference between super() and this()
1) super() is used to call super class constructor, best core java training in bangalore this() is used to call same class constructor.
2) For super() inheritance is necessary because for achieving the super class constructor we use the concept of sub and super class. For this() constructor overloading is necessary.
3) If userdefined super() is not there compiler generate super().But this() is not generate by the compiler, we have to explicitly define the this().

This is short description about the constructor & constructor chaining. To get the more knowledge on java and getting the free 100% job support join Infocampus Software Training Institute for making the career in java






Article Source: http://www.eArticlesOnline.com

About the Author:
Infocampus provides advance java training in bangalore with 100% placement assistance and real time project.It provides core and advance java training in lesser fees and also payments in installament facility is available.

Learn OOPs concept,packages,thread,spring & hibernate etc in java course.Attend 4 days free demo classes for java training. Infocampus provides java/j2ee classes in bangalore .It prepares the learners to crack the interview easily.Complete practical session is available for best core java training.

To get the free demo classes and for 100% job support call at : 9738001024 or to get the syllabus about java course enquire at : http://www.infocampus.co.in/java-training-bangalore.html

Tags: , , , , , , ,

Please Rate this Article

 

Not yet Rated

Click the XML Icon Above to Receive Computers-and-Technology Articles Via RSS!

Recent Related Articles From Computers-and-Technology

  • Federal Cyber Security And Mobility In Execution
    By: Megan Darcy | Jun 26th 2017
    As the Federal Government is growing bigger and bigger, the proneness to cyber attack of its agency systems are growing geometrically. Read

  • Check Out The Guide To Pdf Emailing Software Tool
    By: Jeremy Brown | Jun 22nd 2017
    Printing invoices, sorting them and mailing them isn’t it a boring job, taking off too much time from productivity? Read

  • Social Media And Business
    By: HiCinko | Jun 20th 2017
    In today’s world, as we can see that technology is rising at a very rapid pace and has certainly taken hold of everyone and everything in the society in a fairly strong manner. And as we can see around ourselves, and for that we don’t need any kind of surveys or any kind of statistics, that how social media has been an ... Read

  • Benefits Of Buying Ipad Repair Parts From Wholesale Seller In Online
    By: JESSICA SMITH | Jun 16th 2017
    This article is about all cell phone repair parts.This article will tell you the benefits of buying repair parts of mobile phone instead of buy new cell phone.If you will read once , you will feel good and your thinking will be change definitely. Read

  • Cognos Online Training
    By: Leotrainings | Jun 16th 2017
    LEO trainings is best in the region in which u can change your future in your splendid profession with our SAP MM online training in Hyderabad. After of total of the way you transform into the pleasantly confirmed master inside the commercial center. Read

  • Mongodb Training In Marathahalli Bangalore
    By: First Enquiry | Jun 15th 2017
    MongoDB is a free and open-source cross-platform, report situated database that gives, elite, high accessibility, and simple adaptability. MongoDB chips away at idea of accumulation and report. Read

  • Basic Principles Of Non-destructive Testing
    By: pitekmnd | Jun 13th 2017
    NDTCS offers NDT Schools Training Center-Houston together with the internet based Online NDT Testing training,
    NDT certification, NDT auditing & NDT inspection and NDT Level III Consulting services in the field of Nondestructive Testing.
    Read

  • Why The Vital Role Of Sensors In An Aircraft Engine Monitoring And Control
    By: Joseph Polizzotto | Jun 13th 2017
    These sensors and accessories do not work alone. Through real-time monitoring and reconfiguration, air-traffic control is able to monitor the control and health of the vehicle. Read

  • Monitor Your Target’s Mobile App Through Android 007
    By: romyfernandis | Jun 12th 2017
    Previously it was not easy to track someone, but now in this era of technology everything has become simple. Now you do not need to go to any detective agency to hire an agent for keeping an eye on your target. You can spy on anyone by your own without letting him/her know through your smart phone. Yes, smart phones have ma ... Read

  • Keep An Eye On Your People From Your Phone
    By: romyfernandis | Jun 12th 2017
    Now people can keep an eye on people whom they want to. They do not need to send any detective to follow them and track their activity. Android 007 is the application which can help you in tracking the activities and location of the person you want. Read


Copyright © 2005-2015 eArticlesOnline, LLC - All Rights Reserved
Terms of Service | Privacy Policy