Telephone Records

main.cpp

#include <iostream>
#include <fstream>
#include <string>

using namespace std;

string names[10];
long long numbers[10];
int namesLength = (sizeof(names) / sizeof(*names));
int numbersLength = (sizeof(numbers) / sizeof(*numbers));
int lastIndex = namesLength - 1;

int readNames() 
{
  ifstream File("TelephoneNames.txt");

  int i = 0;
  while(!File.eof()) 
  {
    File >> names[i]; // get data from file and populate onto array
    i++;
  }

  File.close();
}

int readNumbers() 
{
  ifstream File("TelephoneNumbers.txt");

  int i = 0;
  while(!File.eof()) 
  {
    File >> numbers[i];     
    i++;
  }

  File.close();
}

int displayRecords() 
{
  cout << "\nPhone Numbers: " << endl;
  for (int x = 0; x < namesLength; x++)
  {
      if(names[x] != "")
        cout << names[x] << " ........ " << numbers[x] << endl;
  }
}

int saveRecords() 
{
  ofstream File("TelephoneRecords.txt");
  for (int i = 0; i < namesLength; i++)
  {
    if(names[i] != "")
      File << names[i] << " =============== " << numbers[i] << endl;
  }
  cout << "\nPhone records have been saved to TelephoneRecords.txt" << endl;
}

int addRecords() 
{
  string name;
  long long number;

  cout << "Enter new name:\t";
  cin >> name;
  cout << "Enter new phone number:\t";
  cin >> number;
  
  for (int i = 0; i <= namesLength; i++)
  {
      if (names[i] == "") 
      {
        names[i] = name;
        numbers[i] = number;
        break;
      }
  }
}

int main() 
{
  readNames();
  readNumbers();
  displayRecords();
  
  string answer;
  cout << "\nWould you like to add a new record? (y or n)" << endl;
  cin >> answer;

  if (answer == "y") 
    addRecords();

  saveRecords();
  return 0;
}