Read text file into class variable - c++ - c++

Question

So... I tried to make an in-game shop system that reads player's account balance out of .txt file, but I've encountered this realy weird problem
So. This int works just fine. It reads data out of file, converts string to a numeric value, and prints it out.
int main() {
int money;
string cash;
ifstream playerdata;
playerdata.open("player.txt");
if (playerdata.is_open()) {
getline(playerdata,cash);
money = atoi(cash.c_str());
} else cout<<"error";
return money;
}
While this one doesn't. It always prints out that cash is equal to 0.
class Player {
int money ;
string cash;
public:
GetMoney();
int PrintMoney() {return atoi(cash.c_str());};
};
Player::GetMoney(){
int money;
string cash;
ifstream playerdata;
playerdata.open("player.txt");
if (playerdata.is_open()) {
getline(playerdata,cash);
money = atoi(cash.c_str());
playerdata.close();
} else cout<<"error";
}
int main() {
Player a;
cout<<"Your Money: "<<a.PrintMoney()<<"$";
};

Answer 1

Your logic in main is as follows:
Create a of type Player.
Call PrintMoney() function on a.
Your implementation of the PrintMoney function does not call the GetMoney function. In this case, cash is an empty string. Calling c_str on this empty string will result in an empty value being passed to atoi, which will return a 0.
According to the domain this appears correct. The Player doesn't yet have any money. Perhaps after declaring a you need to call a.GetMoney(), however there are other problems with your code that mean this won't quite work.
The money and cash variables in the GetMoney function will override the variables in the Player class. You should remove these.