// Ryan Brown// Hw 7// Client Program#include <iostream>using std::cerr;using std::endl;using std::cout;using std::cin;using std::ios;#include <iomanip>using std::setw;#include <fstream>using std::ofstream;#include <cstdlib>#include "PersonData.h" // ClientData class definition int main() { int idNumber; char lastName[15]; char firstName[15]; char age [4]; int i = 0; ofstream outNameAge( "nameage.dat", ios::binary ); // exit program if ofstream cannot open file if ( !outNameAge ) { cerr << "File could not be opened." << endl; exit( 1 ); } // end if cout << "Enter account number " << "(1 to 100, 0 to end input)\n? "; // require user to specify account number PersonData client; cin >> idNumber; client.setidNumber( idNumber ); // user enters information, which is copied into file while ( client.getidNumber() > 0 && client.getidNumber() <= 100 ) { // user enters last name, first name and age cout << "Enter lastname, firstname, age\n? "; cin >> setw( 15 ) >> lastName; cin >> setw( 15 ) >> firstName; cin >> setw( 4 ) >> age; // set record lastName, firstName and balance values client.setLastName( lastName ); client.setFirstName( firstName ); client.setAge( age ); // seek position in file of user-specified record outNameAge.seekp( ( client.getidNumber() - 1 ) * sizeof( PersonData ) ); // write user-specified information in file outNameAge.write( reinterpret_cast< const char * >( &client ), sizeof( PersonData ) ); // enable user to specify another id number i++; cout << "Enter id number\n? "; cin >> idNumber; client.setidNumber( idNumber ); if (i > 3) { break; } } // end while return 0;} // end main