time3.cs

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// Fig. 8.6: Time3.cs
// Class Time2 provides overloaded constructors.

using System;

namespace TimeTest3
{
   // Time3 class definition
   public class Time3 : Object
   {
      private int hour;    // 0-23
      private int minute;  // 0-59
      private int second;  // 0-59

      // Time3 constructor initializes instance variables to 
      // zero to set default time to midnight
      public Time3()
      {
         SetTime( 0, 0, 0 );
      }

      // Time3 constructor: hour supplied, minute and second
      // defaulted to 0
      public Time3( int hour ) 
      { 
         SetTime( hour, 0, 0 ); 
      }

      // Time3 constructor: hour and minute supplied, second
      // defaulted to 0
      public Time3( int hour, int minute ) 
      { 
         SetTime( hour, minute, 0 );
      }

      // Time3 constructor: hour, minute and second supplied
      public Time3( int hour, int minute, int second ) 
      { 
         SetTime( hour, minute, second ); 
      }

      // Time3 constructor: initialize using another Time3 object
      public Time3( Time3 time )
      {
         SetTime( time.Hour, time.Minute, time.Second );
      }

      // 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;       // invoke Hour property set
         Minute = minuteValue;   // invoke Minute property set
         Second = secondValue;   // invoke Second property set
      }

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

         set
         {
            hour = ( ( value >= 0 && value < 24 ) ? value : 0 );
         }

      } // end property Hour

      // property Minute
      public int Minute
      {
         get
         {
            return minute;
         }
         
         set
         {
            minute = ( ( value >= 0 && value < 60 ) ? value : 0 );
         }

      } // end property Minute

      // property Second
      public int Second
      {
         get
         {
            return second;
         }
         
         set
         {
            second = ( ( value >= 0 && value < 60 ) ? value : 0 );
         }

      } // end property Second

      // 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 Time3
}

/*
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 * (C) Copyright 2002 by Deitel & Associates, Inc. and Prentice Hall.     *
 * All Rights Reserved.                                                   *
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 * development, research, and testing of the theories and programs        *
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