#include #include #include #include #include using namespace std; class ClientData { public: ClientData(int Account = 0, const string &FirstName = "", const string &LastName = "", double Balance = 0.0); void setAccount(const int Account_P) { if(Account_P > 0) this->Account = Account_P; else throw invalid_argument("Invalid Account Number"); } void setBalance(const int Balance_P) { if(Balance_P > 0) this->Balance = Balance_P; else throw invalid_argument("Invalid Account Number"); } void setFirstName(const string &FirstName_P) { int Length = FirstName_P.size(); Length = (Length < 15 ? Length : 15); FirstName_P.copy(FirstName, Length); FirstName[Length] = '\0'; } void setLastName(const string &LastName_P) { int Length = LastName_P.size(); Length = (Length < 15 ? Length : 15); LastName_P.copy(LastName, Length); LastName[Length] = '\0'; } int getAccount() const { return this->Account; } double getBalance() const { return this->Balance; } string getFirstName() const { return this->FirstName; } string getLastName() const { return this->LastName; } private: int Account; char FirstName[15]; char LastName[15]; double Balance; }; // end class void displayData(const ClientData &); int main(void) { // Creating the file ofstream outClient("Data.dat", ios::out | ios::binary); // check if the file has been created if(!outClient) { cerr << "Cannot open file" << endl; exit(EXIT_FAILURE); // close program }// end if // writeing Data int Account_Number; string First_Name; string Last_Name; double Balance; fstream Client_Write("Data.dat", ios::in | ios::out | ios::binary); // check if(!Client_Write) { cerr << "Cannot open file" << endl; exit(EXIT_FAILURE); // close program }// end if cout << "Enter Information Account Number 1 - 100 -->" << endl; ClientData Client_one; cin >> Account_Number; while(Account_Number > 0 && Account_Number <= 100) { // Receive Data cout << "Enter First Name ----> "; cin >> First_Name; cout << "Enter LastName ----> "; cin >> Last_Name; cout << "Enter Balance ----> "; cin >> Balance; // seek the position in file of user specified record Client_Write.seekp((Client_one.getAccount() - 1) * sizeof(ClientData)); //TODO: Add the set function here ClientData.setAccount(Account_Number); ClientData.setFirstName(First_Name); ClientData.setLastName(Last_Name); ClientData.setBalance(Balance); // write file Client_Write.write(reinterpret_cast(&Client_one) * sizeof(ClientData)); // ask for other input cout << "Enter Account Number ---- >"; cin >> Account_Number; } // end while // read file ifstream Readable_file("Data.dat", ios::in | ios::binary); // check if(!Readable_file) { cerr << "Cannot open file" << endl; exit(EXIT_FAILURE); } // out put column heads cout << left << setw(10) << "Account" << setw(10) << "FirstName" << setw(10) << "LastName" << setw(14) << right << "Balance" << endl; ClientData Main_Client; // create record // read first record form file Readable_file.read(einterpret_cast(&Main_Client), sizeof(ClientData)); // read all record from file while(Readable_file && !Readable_file.eof()) { if(Main_Client.getAccount() != 0) displayData(Main_Client); // read next record Readable_file.read(einterpret_cast(&Main_Client), sizeof(ClientData)); } return 0; } void displayData(const ClientData &Record) { cout << left << Record.getAccount() << setw(10) << Record.getFirstName() << setw(10) << setw(10) << Record.getLastName << setw(10) << setpresction(2) << fixed<< Record.getBalance() << endl; }

File_Proccessing