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  1. using System;
  2.  
  3. public class Bus
  4. {
  5.     protected static readonly DateTime globalStartTime;
  6.     protected static readonly int FirstBusNumber;
  7.  
  8.     protected int RouteNumber { get; set; }
  9.  
  10.  
  11.     static Bus(/*int firstBusNumber*/)//Error if uncomment: The static constructor must be parameterless
  12.     {
  13.          //FirstBusNumer = firstBusNumber;
  14.         globalStartTime = DateTime.Now;
  15.  
  16.         Console.WriteLine("The First Bus #{0} starts at global start time  {1}", 
  17.             FirstBusNumber,
  18.             globalStartTime.ToLongTimeString());
  19.     }
  20.  
  21.     public Bus(int routeNum) 
  22.     {
  23.         RouteNumber = routeNum;
  24.         Console.WriteLine("Bus #{0} is created.", RouteNumber);
  25.     }
  26.  
  27.     public void Drive()
  28.     {
  29.         TimeSpan elapsedTime = DateTime.Now - globalStartTime;
  30.         Console.WriteLine("{0} is starting its route {1:N2} minutes after the first Bus #{2}.",
  31.             this.RouteNumber,
  32.             elapsedTime.TotalMilliseconds,
  33.             FirstBusNumber
  34.         );
  35.     }
  36. }
  37.  
  38. class TestBus
  39. {
  40.     static void Main()
  41.     {
  42.         Bus bus1 = new Bus(71);
  43.         Bus bus2 = new Bus(72);
  44.         bus1.Drive();
  45.         System.Threading.Thread.Sleep(25);
  46.         bus2.Drive();
  47.         System.Console.WriteLine("Press any key to exit.");
  48.         System.Console.ReadKey();
  49.     }
  50. }
  51.  
Success #stdin #stdout 0.02s 16056KB
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s
stdout
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The First Bus #0 starts at global start time  8:54:56 AM
Bus #71 is created.
Bus #72 is created.
71 is starting its route 10.89 minutes after the first Bus #0.
72 is starting its route 36.28 minutes after the first Bus #0.
Press any key to exit.
https://ideone.com/QOvOEF
language:
C# (gmcs 5.20.1)
created:
6 years ago
visibility:
public

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