SEALED CLASSES

Sealed classes are used to restrict the inheritance feature of object oriented programming. Once a class is defined as sealed class, this class cannot be inherited.

The following class definition defines a sealed class in C#:

// Sealed class

sealed class SealedClass

{

}

Example

using System;

class Class1

{

static void Main(string[] args)

{

SealedClass sealedCls = new SealedClass();

int total = sealedCls.Add(4, 5);

Console.WriteLine("Total = " + total.ToString());

}

}

// Sealed class

sealed class SealedClass

{

public int Add(int x, int y)

{

return x + y;

}

}