Mega Code Archive
Demonstrating composition--an object with member objects
<![CDATA[
#include <iostream>
using std::cout;
using std::endl;
#include <cstring>
using std::strlen;
using std::strncpy;
class Date
{
public:
Date( int = 1, int = 1, int = 1900 );
void print() const;
~Date();
private:
int month;
int day;
int year;
};
Date::Date( int mn, int dy, int yr )
{
month = mn;
year = yr;
day = dy );
}
void Date::print() const
{
cout << month << '/' << day << '/' << year;
}
Date::~Date()
{
cout << "Date object destructor for date ";
cout << endl;
}
class Employee
{
public:
Employee( const char * const, const char * const,
const Date &, const Date & );
void print() const;
~Employee();
private:
char firstName[ 25 ];
char lastName[ 25 ];
const Date birthDate;
const Date hireDate;
};
Employee::Employee( const char * const first, const char * const last,const Date &dateOfBirth, const Date &dateOfHire )
: birthDate( dateOfBirth ), hireDate( dateOfHire )
{
strcpy( firstName, first);
strcpy( lastName, last);
}
void Employee::print() const
{
cout << lastName << ", " << firstName << " Hired: ";
hireDate.print();
cout << " Birthday: ";
birthDate.print();
cout << endl;
}
Employee::~Employee()
{
cout << "Employee destructor: " << lastName << ", " << firstName << endl;
}
int main()
{
Date birth( 7, 24, 1949 );
Date hire( 3, 12, 1989 );
Employee manager( "A", "B", birth, hire );
cout << endl;
manager.print();
return 0;
}
B, A Hired: 3/12/1989 Birthday: 7/24/1949
Employee destructor: B, A
Date object destructor for date
]]>