?
Solved

Abstract class

Posted on 2004-03-24
2
Medium Priority
?
333 Views
Last Modified: 2010-04-05
Dear all

  Abstract class can have  no constructor .
What is the reason behind  in that?

0
Comment
Question by:ravisiva
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 12

Accepted Solution

by:
Lee_Nover earned 60 total points
ID: 10666926
you instantiate a descendant and don't care about the implementation
check TStrings and TStringList
think of abstract classes as of interfaces without reference counting
0
 
LVL 1

Expert Comment

by:FeralCTO
ID: 10669589
An abstract class never gets instantiated. Therefor, no Constructor. Abstract classes are very useful as conceptual abstractions of responsibility, and serve as super classes to other concrete classes that do get instantiated.
0

Featured Post

Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Objective: - This article will help user in how to convert their numeric value become words. How to use 1. You can copy this code in your Unit as function 2. than you can perform your function by type this code The Code   (CODE) The Im…
Hello everybody This Article will show you how to validate number with TEdit control, What's the TEdit control? TEdit is a standard Windows edit control on a form, it allows to user to write, read and copy/paste single line of text. Usua…
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…
In this video you will find out how to export Office 365 mailboxes using the built in eDiscovery tool. Bear in mind that although this method might be useful in some cases, using PST files as Office 365 backup is troublesome in a long run (more on t…
Suggested Courses

718 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question