How would you stop a class from class from being derived or
inherited.
- 18 Answers
- 20911 Views
- Ness Technologies, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / satya
By Declaring the Class as 'Sealed' in C# or
as "NotInheritable" in VB.NET
| Is This Answer Correct ? | 8 Yes | 3 No |
Answer / deepak joshi
Guys what happened to you all???? Will 'Final' not do????
| Is This Answer Correct ? | 8 Yes | 4 No |
Answer / stavanm
By Creating class as a final
final class A{
// code
}
| Is This Answer Correct ? | 5 Yes | 1 No |
#define DO_NOT_DERIVE(T) \
class NoDerive_##T { \
friend class T;
\
NoDerive_##T() {}
\
NoDerive_##T(const NoDerive_##T&) {} \
};
#define stopderiving(T) private virtual NoDerive_##T
when we derive from any class, the constructor needs to be
called, since here constructor of NoDerive calss is
private, it cannot be derived. And friendship cannot be
inherited.
usage
class finalclass : stopderiving (finalclass)
{
....
};
the other possible solution for this is making the default
constructor private.
| Is This Answer Correct ? | 4 Yes | 1 No |
Answer / bala
Final will do in Java. But not in C++.
I hope, bye creating all the constructor,copy constructor
in private will stop inherite the class.
Plz refer 'Singleton Pattern'
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / selvam
but onething.If you make constructor as private you will
not be able to create an object of that class.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / montylee
Here's the correct answer:
http://www.parashift.com/c++-faq-lite/strange-inheritance.html#faq-23.11
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / anant tiwari
There are three way to stop a class been derived (example in C#)
1) declare a class as static (Ex : static class Sample {....}
2) declare the class constructor as private (Ex class Sample{ private Sample(){}....}
3) declare a class as sealed class Ex : sealed class Sample {...}
| Is This Answer Correct ? | 0 Yes | 0 No |
what is polymorphism?
Which is better struts or spring?
What is function overloading?,describe it with the example.
any one please tell me the purpose of operator overloading
what is the difference b/w abstract and interface?
2 Answers Merrill Lynch, Schneider, Scio Healthcare,
What is polymorphism and types?
Question: Implement a base class Appointment and derived classes Onetime, Daily, Weekly, and Monthly. An appointment has a description (for example, “see the dentist”) and a date and time. Write a virtual function occurs_on(int year, int month, int day) that checks whether the appointment occurs on that date. For example, for a monthly appointment, you must check whether the day of the month matches. Then fill a vector of Appointment* with a mixture of appointments. Have the user enter a date and print out all appointments that happen on that date.
What is use of overloading?
WHAT'S THE OOPS BASIC OOPS CONCEPTS IN DOTNET
What is polymorphism in oop example?
what is SPL in c++.
What is the highest level of cohesion?
STL 
