cpp32.cpp

C++参考书

// Coded by plusir -- Jan.05.2003.
// Standard C++ Bible -- (P346-11-32)

#include <iostream>
using namespace std ;

class Date
{
	public:
		Date( int d, int m, int y )
		{
			day = d ;
			month = m ;
			year = y ;
		}

		void display( void ) const
		{
			cout << day << '/' << month << '/' << year ;
		}

	private:
		int day ;
		int month ;
		int year ;
} ;

class Time
{
	public:
		Time( int h, int m, int s )
		{
			hour = h ;
			second = s ;
			minute = m ;
		}

		void display( void ) const
		{
			cout << hour << ':' << minute << ':' << second ;
		}

	private:
		int minute ;
		int hour ;
		int second ;
} ;

class DateTime
{
	public:
		DateTime( const Date& d, const Time& t ) : dt( d ), tm( t ) { }
		void display( void ) const
		{
			dt.display() ;
			cout << ' ' ;
			tm.display() ;
			cout << endl ;
		}

	private:
		const Date& dt ;
		const Time& tm ;
} ;

int main()
{
	Date today( 25, 3, 93 ) ;
	Time now( 4, 15, 0 ) ;

	DateTime dtm( today, now ) ;
	dtm.display() ;

	return 0 ;
}