date.cpp

sdd5练习1-4答案

#include "Date.h"
#include <iostream>
#include <string>

Date::Date():year(0),month(0),day(0),hour(0),minute(0),second(0) {}

Date::Date(int month, int day, int year, int hour, int minute, int second)
		:year(year),month(month),day(day),hour(hour),minute(minute),second(second) {}

void Date::setYear(int& year) {
	this->year = year;
}

void Date::setMonth(int& month) {
	this->month = month;
}

void Date::setDay(int& day) {
	this->day = day;
}

void Date::setHour(int& hour) {
	this->hour = hour;
}

void Date::setMinute(int& minute) {
	this->minute = minute;
}

void Date::setSecond(int& second) {
	this->second = second;
}

int Date::getYear() const {
	return year;
}

int Date::getDay() const {
	return day;
}

int Date::getMonth() const {
	return month;
}

int Date::getHour() const {
	return hour;
}

int Date::getMinute() const {
	return minute;
}

int Date::getSecond() const {
	return second;
}

bool Date::operator ==(const Date &rhs) {
	if (this->year == rhs.getYear() && this->month == rhs.getMonth() && this->day == rhs.getDay() &&
		this->hour == rhs.getHour() && this->minute == rhs.getMinute() && this->second == rhs.getSecond())
		return true;
	else
		return false;
}

bool Date::operator <(const Date &rhs) {
	if (this->year < rhs.getYear())
		return true;
	else if (this->year > rhs.getYear())
		return false;
	else {
		if (this->month < rhs.getMonth())
			return true;
		else if (this->month > rhs.getMonth())
			return false;
		else {
			if (this->day < rhs.getDay())
				return true;
			else if (this->day > rhs.getDay())
				return false;
			else {
				if (this->hour < rhs.getHour())
					return true;
				else if (this->hour > rhs.getHour())
					return false;
				else {
					if (this->minute < rhs.getMinute())
						return true;
					else if (this->minute > rhs.getMinute())
						return false;
					else {
						if (this->second < rhs.getSecond())
							return true;
						else return false;
					}
				}
			}
		}
	}
}

ostream &operator<<(ostream& os, const Date& date) {
	os << date.getMonth() << "/" << date.getDay() << "/" << date.getYear() << " " << date.getHour() 
		<< ":" << date.getMinute() << ":" << date.getSecond();
	return os;
}

istream &operator>>(istream& is, Date& date) {
	string str;
	is >> str;

	string::size_type pos1,pos2,pos3;
	pos1 = str.find_first_of("/");
	pos2 = str.find_last_of("/");
	pos3 = str.find_first_of(" ");
	int month = atoi(str.substr(0,pos1).c_str());
	int day = atoi(str.substr(pos1 + 1,pos2).c_str());
	int year = atoi(str.substr(pos2 + 1,pos3).c_str());

	is >> str;
	pos1 = str.find_first_of(":");
	pos2 = str.find_last_of(":");
	pos3 = str.find_last_of(" \n");
	int hour = atoi(str.substr(0,pos1).c_str());
	int minute = atoi(str.substr(pos1 + 1,pos2).c_str());
	int second = atoi(str.substr(pos2 + 1,pos3).c_str());

	date.setYear(year);
	date.setMonth(month);
	date.setDay(day);
	date.setHour(hour);
	date.setMinute(minute);
	date.setSecond(second);
	return is;
}