time5.cpp

这是C＋＋编程经典的书上实例的源代码。 （英文名是《C＋＋ how to program》第3版）

// Fig. 7.1: time5.cpp
// Member function definitions for Time class.
#include <iostream>

using std::cout;

#include "time5.h"

// Constructor function to initialize private data.
// Default values are 0 (see class definition).
Time::Time( int hr, int min, int sec ) 
   { setTime( hr, min, sec ); }

// Set the values of hour, minute, and second.
void Time::setTime( int h, int m, int s )
{
   setHour( h );
   setMinute( m );
   setSecond( s );
}

// Set the hour value
void Time::setHour( int h ) 
   { hour = ( h >= 0 && h < 24 ) ? h : 0; }

// Set the minute value
void Time::setMinute( int m ) 
   { minute = ( m >= 0 && m < 60 ) ? m : 0; }

// Set the second value
void Time::setSecond( int s )
   { second = ( s >= 0 && s < 60 ) ? s : 0; }

// Get the hour value
int Time::getHour() const { return hour; }

// Get the minute value
int Time::getMinute() const { return minute; }

// Get the second value
int Time::getSecond() const { return second; }

// Display military format time: HH:MM
void Time::printMilitary() const
{
   cout << ( hour < 10 ? "0" : "" ) << hour << ":"
        << ( minute < 10 ? "0" : "" ) << minute;
}

// Display standard format time: HH:MM:SS AM (or PM)
void Time::printStandard()  // should be const
{
   cout << ( ( hour == 12 ) ? 12 : hour % 12 ) << ":"
        << ( minute < 10 ? "0" : "" ) << minute << ":"
        << ( second < 10 ? "0" : "" ) << second
        << ( hour < 12 ? " AM" : " PM" );
}



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