public static void Main(String[] args)
{
SPoint p = new SPoint(11, 22);
Console.WriteLine("p = {0}", p); // Now p = (11, 22)
p.Move(9, 8);
Console.WriteLine("p = {0}", p); // Now p = (20, 30)
p.Move(5, 5).Move(6, 6);
Console.WriteLine("p = {0}", p); // Now p = (25, 35) not (31, 41)
q.Move(5, 5);
Console.WriteLine("q = {0}", q); // Now q = (33, 44) not (38, 49)
}
