Reading from and writing to a data file
Ok guys the follow code I am trying to read from the file!
Add 2 New Accounts
Then modify One Account
Then Write everything back to the file!
Can someone please help me...it does not work and I am getting this error:
Code:
#include <iostream>
#include <fstream>
#include <iomanip>
#include <functional>
#include <algorithm>
#include <string>
#include <cstdlib>
#include <sstream>
using namespace std;
//Account class
class Account {
private:
int number;
double balance;
double rate;
public:
Account(); // Constructor
Account (int, double, double);
void setNumber(int);
void setBalance(double);
void setRate(double);
int getNumber();
double getBalance();
double getRate();
void account_details();
string string_account_details();
void account_Readdetails(ifstream &in);
void Account::account_details(ostream& out) {
out << number << " " << balance << " " << rate << "\n";
}
};
Account::Account()
{
number =0;
balance = 0;
rate = 0;
}
Account::Account(int number, double balance, double rate)
{
//this pointers to the current class
this->number = number;
this->balance = balance;
this->rate= rate;
}
void Account::setNumber(int number) {
Account::number = number;
}
void Account::setBalance(double balance) {
Account::balance = balance;
}
void Account::setRate(double rate) {
Account::rate = rate;
}
int Account::getNumber() {
return number;
}
double Account::getBalance() {
return balance;
}
double Account::getRate() {
return rate;
}
void Account::account_details() {
cout << "The current account number is " << number <<
" with a balance of $" << balance << " and an interest rate of " << rate << ".\n\n";
}
void Account::account_Readdetails(ifstream &in)
{
in >> number >> balance >> rate;
}
Code:
#include "Account.h"
#include <iostream>
#include <fstream>
#include <cstdlib> // for exit function
using std::ofstream;
int main() {
Account acc;
ifstream readData;
int tempInt;
double tempDouble;
int current_account = 0;
int menu = 0;
ifstream file("AccountDetail.data");
if(!file)
{
cerr<<"ERROR"<<endl;
exit(0);
}
acc.account_Readdetails(file);
for (int x=0; x<6; x++) {
acc.account_details();
}
//Add 2 new accounts
for (int i = 0; i <2; i++) {
cout << "Enter the New Account Number: ";
acc.setNumber(tempInt);
cout << "Enter the New Accounts Balance: ";
acc.setBalance(tempDouble);
cout << "Enter the New Accounts Rate: ";
acc.setRate(tempDouble);
for (int x=0; x<8; x++) {
acc.account_details();
}
//Change Account Information
while (menu!=3)//keep going until 3 is selected
{
cout << "Vehicle Menu\n\n"; //Menu
cout << "1. Select the Account to edit:\n";
cout << "2. Change the Account Number :\n";
cout << "3. Exit the Program:\n\n\n";
cout << "Please choose one of the above options: ";
cin >> menu;
cin.ignore();
cout << "_______________________________________________________\n";
//switch begin
switch ( menu )
{
case 1:
//Here the user will select which Account to edit!
cout << " Pick a Account to edit\n";
cin >> current_account;
--current_account;
cin.ignore();
cout << "_______________________________________________________\n";
break;
case 2:
//User will be able to change the Account Balance
cout << " The Balance of the account is: " << acc[current_account]->getBalance() << endl;
cout << " Please enter the change to the account: ";
cin >> tempDouble;
acc[current_account]->setBalance(tempDouble);
cout << "_______________________________________________________\n";
break;
default:
cout << " Please restart the program, you have entered invalid information!\n\n\n";
break;
}
}
for(int i=0; i<8; i++)
acc[i].account_OutPutdetails(file);
file.close(); // close file
cin.ignore();
cin.get();
return 0;
}
Error:
1>\main.cpp(71): error C2676: binary '[' : 'Account' does not define this operator or a conversion to a type acceptable to the predefined operator
1>\main.cpp(71): error C2227: left of '->getBalance' must point to class/struct/union/generic type
1>\main.cpp(74): error C2676: binary '[' : 'Account' does not define this operator or a conversion to a type acceptable to the predefined operator
1>\main.cpp(74): error C2227: left of '->setBalance' must point to class/struct/union/generic type
1>\main.cpp(85): error C2676: binary '[' : 'Account' does not define this operator or a conversion to a type acceptable to the predefined operator
1>\main.cpp(85): error C2228: left of '.account_OutPutdetails' must have class/struct/union
