pex3_4.cpp

数据结构C++代码,经典代码,受益多多,希望大家多多支持

#include <iostream.h>
#include <iomanip.h>

class Person
{
	private:
		int  id;
		int  age;
		char sex;
	public:
		// constructor
		Person(int pid = 0, int page = 0, char psex = 'M');
		
		// I/O methods
		void Read(void);
		void Print(void) const;
		
		// data access methods
		int GetId(void) const;
		int GetAge(void) const;
		char GetSex(void) const;
};

Person::Person(int pid, int page, char psex) : id(pid), age(page), sex(psex)
{}

void Person::Read(void)
{
	cout << "Enter the person's id, age, and sex" << endl;
	cin >> id >> age >> sex;
}

void Person::Print(void) const
{
	cout << "ID: " << setw(4) << id << "   Age: "
	     << age << "   Sex: ";
	if (sex == 'M')
		cout << "Male" << endl;
	else
		cout << "Female" << endl;
}

int Person::GetId(void) const
{
	return id;
}

int Person::GetAge(void) const
{
	return age;
}

char Person::GetSex(void) const
{
	return sex;
}

void main(void)
{
	// age of youngWoman = 1000, age of oldMan = 0 (default)
	Person youngWoman(0,1000,'F'), oldMan, person;
	
	for(;;)
	{
		person.Read();
		if (person.GetId() == 0)
			break;
		if (person.GetSex() == 'M' && person.GetAge() > oldMan.GetAge())
			oldMan = person;
		else if (person.GetSex() == 'F' && person.GetAge() < youngWoman.GetAge())
			youngWoman = person;
	}
	
	cout << "Young woman:    ";
	youngWoman.Print();
	cout << "Old man:        ";
	oldMan.Print();
}
/*
<Run>

Enter the person's id, age, and sex
100 30 M
Enter the person's id, age, and sex
150 20 F
Enter the person's id, age, and sex
50 40 M
Enter the person's id, age, and sex
10 25 F
Enter the person's id, age, and sex
0 0 M
Young woman:    ID:  150   Age: 20   Sex: Female
Old man:        ID:   50   Age: 40   Sex: Male
*/