/**
 * p1.cpp (7-dec-2010/sklar)
 *
 * this program motivates the use of simple classes in C++ by using multiple 
 * variables and parallel arrays that are related conceptually, but are not 
 * formally connected by the code structure.
 *
 */

#include <iostream>
using namespace std;


// function prototypes
void readData( string &, string &, string &, string &, string &, string &, 
	       int &, int &, int & );
void writeData( string, string, string,	string, string, string, int, int, int);


/**
 * main function
 *
 */
int main() {
  string last_name[3];
  string first_name[3];
  string cell_number[3];
  string email[3];
  string home_number[3];
  string work_number[3];
  int birth_day[3];
  int birth_month[3];
  int birth_year[3];
  cout << "enter data for 3 people...\n";
  for ( int i=0; i<3; i++ ) {
    readData( last_name[i], first_name[i], 
	      cell_number[i], email[i], 
	      home_number[i], work_number[i], 
	      birth_day[i], birth_month[i], 
	      birth_year[i] );
  }
  cout << "here are all the people...\n";
  for ( int i=0; i<3; i++ ) {
    writeData( last_name[i], first_name[i],
	       cell_number[i], email[i], 
	       home_number[i], work_number[i],
	       birth_day[i], birth_month[i], 
	       birth_year[i] );
  }
} // end of main()



/**
 * readData()
 *
 * this function prompts the user for input and reads their answers.
 * values entered are returned to calling function using call-by-reference
 * arguments.
 *
 */
void readData( string &last_name, string &first_name,
	       string &cell_number,
	       string &email, string &home_number,
	       string &work_number, 
	       int &birth_day, int &birth_month,
	       int &birth_year ) {
  cout << "enter last name: ";
  cin >> last_name;
  cout << "enter first name: ";
  cin >> first_name;
  cout << "enter cell number: ";
  cin >> cell_number;
  cout << "enter email: ";
  cin >> email;
  cout << "enter home number: ";
  cin >> home_number;
  cout << "enter work number: ";
  cin >> work_number;
  cout << "enter birthday (DD MM YY): ";
  cin >> birth_day;
  cin >> birth_month;
  cin >> birth_year;
  cout << "thanks!" << endl;
} // end of readData()



/**
 * writeData()
 *
 * this function displays the values of its arguments on the screen,
 * formatted in a user-friendly way.
 *
 */
void writeData( string last_name, string first_name,
		string cell_number,
		string email, string home_number, 
		string work_number, 
		int birth_day, int birth_month,
		int birth_year ) {
  cout << "name:  " << first_name << " " << last_name << endl;
  cout << "phone: " << cell_number << " (C)\n";
  cout << "       " << home_number << " (H)\n";
  cout << "       " << work_number << " (W)\n";
  cout << "email: " << email << endl;
  cout << "birthday: " << birth_day << "/" << birth_month << "/" <<
    birth_year << endl;
} // end of writeData()