static void Main(string[] args)
{
SealedClass instance = new SealedClass();
instance.x = 100;
instance.y = 200;
Console.WriteLine($"x = {instance.x}, y = {instance.y}");
//Delay
Console.ReadKey();
}
static void Main(string[] args)
{
SealedClass instance = new SealedClass();
instance.x = 100;
instance.x = 200;
Console.WriteLine("x = {0}, y = {1}", instance.x, instance.y);
//Delay
Console.ReadKey();
}