I am developing a C++ banking system. I am able to get the float, newbal, values correctly and when I try to write to file, there is no data in the file.
else if (x == 2)
{
cout << "You have selected option number 2. Deposit.\n";
cout << "Please enter you account ID: ";
cin >> ID;
file.open("C:\\Users\\Raggulddon\\Desktop\\C++ supplement\\Cust_" + ID + ".dat", ios:: in | ios::out | ios::binary);
if (!file)
{
cout << "Sorry the requested account could not be located.\n";
}
else
{
file >> firstname >> lastname;
cout << endl << firstname << " " << lastname << endl;
cout << "-----------------------------------\n";
string line;
while (getline(file, line))
{
// stringstream the getline for line string in file
istringstream iss(line);
if (iss >> date >> amount)
{
cout << date << "\t\t$" << showpoint << fixed << setprecision(2) << amount << endl;
famount += amount;
}
}
cout << "Your balance is $" << famount << endl;
cout << "How much would you like to deposit today: $";
cin >> amountinput;
float newbal = 0;
newbal = (famount += amountinput);
cout << "\nYour new balance is: $" << newbal << ".\n";
file << date << "\t\t" << newbal; //***This should be writing to file
but it doesn 't.
file.close();
The text file looks like this:
Tony Gaddis
05/24/12 100
05/30/12 300
07/01/12 -300
// Console Output looks like this
Tony Gaddis
05/24/12 100
05/30/12 300
07/01/12 -300
Your balance is: #1
How much wuld you like to deposit: #2
Your new balance is: #1 + #2
write to file
close file.
// exits to main loop::::
How can I make it write to file and save it, and why is this happening.
I tried doing it with ostringstream as well considering how I used istringstream for the input. But it didn't work either:
float newbal=0;
newbal = (famount += amountinput);
ostringstream oss(newbal);
oss << date << "\t\t" << newbal;
I am trying to self teach C++ so any relevant information would be kindly appreciated.
