// Fig. 10.19: Time.cpp 
// Member-function definitions for Time class.
#include <iostream>
using std::cout;

#include <iomanip>
using std::setfill;
using std::setw;

#include "Time.h" // Time class definition

// constructor function to initialize private data;
// calls member function setTime to set variables;
// default values are 0 (see class definition)
Time::Time( int hr, int min, int sec ) 
{ 
   setTime( hr, min, sec ); 
} // end Time constructor

// set values of hour, minute, and second
Time &Time::setTime( int h, int m, int s ) // note Time & return
{
   setHour( h );
   setMinute( m );
   setSecond( s ); 
   return *this; // enables cascading
} // end function setTime

// set hour value
Time &Time::setHour( int h ) // note Time & return
{
   hour = ( h >= 0 && h < 24 ) ? h : 0; // validate hour
   return *this; // enables cascading
} // end function setHour

// set minute value
Time &Time::setMinute( int m ) // note Time & return
{
   minute = ( m >= 0 && m < 60 ) ? m : 0; // validate minute
   return *this; // enables cascading
} // end function setMinute

// set second value
Time &Time::setSecond( int s ) // note Time & return
{
   second = ( s >= 0 && s < 60 ) ? s : 0; // validate second
   return *this; // enables cascading
} // end function setSecond

// get hour value
int Time::getHour() const 
{ 
   return hour; 
} // end function getHour

// get minute value
int Time::getMinute() const 
{ 
   return minute; 
} // end function getMinute

// get second value
int Time::getSecond() const 
{ 
   return second; 
} // end function getSecond

// print Time in universal-time format (HH:MM:SS) 
void Time::printUniversal() const
{
   cout << setfill( '0' ) << setw( 2 ) << hour << ":"
      << setw( 2 ) << minute << ":" << setw( 2 ) << second;
} // end function printUniversal

// print Time in standard-time format (HH:MM:SS AM or PM)
void Time::printStandard() const
{
   cout << ( ( hour == 0 || hour == 12 ) ? 12 : hour % 12 )
      << ":" << setfill( '0' ) << setw( 2 ) << minute
      << ":" << setw( 2 ) << second << ( hour < 12 ? " AM" : " PM" );
} // end function printStandard

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