What is the outcome of the following: using System; sealed class MyClass { public int x; public int y; } class MainClass { public static void Main() { MyClass mC = new MyClass(); mC.x = 110; mC.y = 150; Console.WriteLine("x = {0}, y = {1}", mC.x, mC.y); } }

40.

What is the outcome of the following:

using System;
sealed class MyClass
{
  public int x;
  public int y;
}

class MainClass
{
  public static void Main()
  {
    MyClass mC = new MyClass();
    mC.x = 110;
    mC.y = 150;
    Console.WriteLine("x = {0}, y = {1}", mC.x, mC.y);
  }
}

Compile error - Cannot instantiate a sealed class

x = 110, y = 150

Runtime error - Cannot instantiate a sealed class

View Description

When applied to a class, the sealed modifier prevents other classes from inheriting from it, but it doesn't mean you cannot create an instance from it.

Ref: http://msdn.microsoft.com/en-us/library/88c54tsw.aspx