ex-04-11

Programming Csharp Source Code(代码) Programming Csharp Source Code

//Example 04-11: Using a property

public class Time
{
   // public accessor methods
   public void DisplayCurrentTime()
   {

      System.Console.WriteLine(
         "Time\t: {0}/{1}/{2} {3}:{4}:{5}",
         month, date, year, hour, minute, second);
   }


   // constructors
   public Time(System.DateTime dt)
   {
      year =      dt.Year;
      month =     dt.Month;
      date =      dt.Day;
      hour =      dt.Hour;
      minute =    dt.Minute;
      second =    dt.Second;
   }

     // create a property
     public int Hour
     {
         get
         {
             return hour;
         }

         set
         {
             hour = value;
         }
     }

    // private member variables
   private int year;
   private int month;
   private int date;
   private int hour;
   private int minute;
   private int second;
}

public class Tester
{
   static void Main()
   {
      System.DateTime currentTime = System.DateTime.Now;
      Time t = new Time(currentTime);
      t.DisplayCurrentTime();

         int theHour = t.Hour;
         System.Console.WriteLine("\nRetrieved the hour: {0}\n",
            theHour);
         theHour++;
         t.Hour = theHour;
         System.Console.WriteLine("Updated the hour: {0}\n", theHour);
   }
}