Answer Posted / asit nutiyal(birla)

sealed modifier is used for preventing the accident
inhritance of a class. A sealed class can not be inhrited.

Example :

using system;

sealed class abc
{
protected string str = "";

public virtual void hello()
{
str = " Hi i am not in C#";
}
class xyz : abc //--ERROR--
{
public override void hell0()
{
str = "hi i am in C#";
Console.WriteLine("{0}",str);
}
}
class mainclass
{
public static void Main()
{
xyz x = new xyz();
x.hello();
}
}

Note-> if we run above program thn we will get an error
because we inheit class abc while it is sealed.

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