Can we make sealed class private?

Question

Sivasankar Gorantla · Answer

No you can't make a sealed class as private. Private : You have written a class with some members and methods which you don't want to expose out side of your class. Sealed : If you mark a class as Sealed then it cannot be inherited by other classes. i.e. You are telling other classes that this class functionality is fully implemented and you don't need to extend it. Please go ahead and create object of it to make use of this functionality. Private & Sealed: Both cannot be applied as it throws following error. Elements defined in a namespace cannot be explicitly declared as private protected or protected internal Hope this helps to clarify your query. Thanks Siva

Anil Jha · Answer

Private class cannot be defined inside namespace. If you try to define below code then you will get an error: namespace SolidPrinciplesConsole { private sealed class OuterClass { } } Error: Elements defined in a namespace cannot be explicitly declared as private protected or protected internal However you can create private sealed class inside a class i.e. nested class like below. namespace SolidPrinciplesConsole { sealed class OuterClass { private sealed class InnerClass { } } } If you run above code it will not throw an error.

Vivek Kumar · Answer

Yes Alok You can make it but you have to understand that y ou can't make private Class outside of any classes . Please try to understand the behaviour of private Class. namespace ConsoleApplication2 { class Program { static void Main(string[] args) { } private class ClassB { } private sealed class ClassC { } } //Elements defined in a namespace cannot be explicitly declared as private //protected or protected internal private class ClassA (You can not make it here as a private Class) { } }

Rajkiran Swain · Answer

There is having some differences between private class and sealed class. + Private class usually used on inner class that don't want to external to seeing it it is created the closure. For example public class Parent { // some thing at here private readonly SubClass sc ; // ctor public Parent () { sc = new SubClass (); } public string foo () { return sc . bar (); } private class SubClass { // have some thing here public string bar () { //.............. return ........... ; } } } + S ealed class is meaning: you can't inherit from it it is a finally class in inherited hierarchy (leaf node). For examples in .NET 2.0 Microsoft built HttpContext is a sealed class and in .NET 3.5 they are wrapper it became HttpContextWrapper for Unit Testing it. That is my knowledge about 2 of its. If it have any problems you can post at here and we shall discuss later.

Naveen Bisht · Answer

if you want to use class as internal liabrary then use as sealed eg. your string class in .net and if you do not want share your data/member fuction outside world then you can use private. For real life example if you have your own car(Private) then no body else will use it. but once like you are using it for carpooling(sealed) with your friend it concept like sealed car is still your but your using like it another way.

Satyaprakash Samantaray · Answer

No

Alok Tripathi · Answer

if its define then can anyone tell me the what is the use of it?

Satyendra Patel · Answer

No Here run time exception occur.

Khaja Moizuddin · Answer

I think no.

Kaushal Parik · Answer

I suggest you try a sample in a class file and see if that works: private sealed class test { }

Dharmraj Thakur · Answer

Yes you can define private or public to a sealed class...

Ramesh Barik · Answer

No. It will trhow an error . Elements defined in a namespace cannot be explicitly declared as private protected or protected internal Refer this link to know the difference. https://www.codeproject.com/Questions/394242/Difference-b-w-private-class-vs-sealed-class-with