time1.cs

this is a good book for the visual c#

// Fig. 8.1: Time1.cs
// Class Time1 maintains time in 24-hour format.

using System;

namespace RestrictedAccess
{
   // Time1 class definition
   public class Time1 : Object
   {
      private int hour;    // 0-23
      private int minute;  // 0-59
      private int second;  // 0-59

      // Time1 constructor initializes instance variables to 
      // zero to set default time to midnight
      public Time1()
      {
         SetTime( 0, 0, 0 );
      }

      // Set new time value in 24-hour format. Perform validity
      // checks on the data. Set invalid values to zero.
      public void SetTime( 
         int hourValue, int minuteValue, int secondValue )
      {
         hour = ( hourValue >= 0 && hourValue < 24 ) ? 
            hourValue : 0;
         minute = ( minuteValue >= 0 && minuteValue < 60 ) ?
            minuteValue : 0;
         second = ( secondValue >= 0 && secondValue < 60 ) ? 
            secondValue : 0;
      }

      // convert time to universal-time (24 hour) format string
      public string ToUniversalString()
      {
         return String.Format( 
            "{0:D2}:{1:D2}:{2:D2}", hour, minute, second );
      }

      // convert time to standard-time (12 hour) format string
      public string ToStandardString()
      {
         return String.Format( "{0}:{1:D2}:{2:D2} {3}",
            ( ( hour == 12 || hour == 0 ) ? 12 : hour % 12 ),
            minute, second, ( hour < 12 ? " AM" : " PM" ) );
      }      

   } // end class Time1
}

/*
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 * (C) Copyright 2002 by Deitel & Associates, Inc. and Prentice Hall.     *
 * All Rights Reserved.                                                   *
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 * best efforts in preparing the book. These efforts include the          *
 * development, research, and testing of the theories and programs        *
 * to determine their effectiveness. The authors and publisher make       *
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 * furnishing, performance, or use of these programs.                     *
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*/