Reading data from a long string
Hi, I looked through the sections on getline() and ifstream/ofstream but couldn't couldn't figure out a solution to this question:
Given a string in a file:
Smith,John:20$1239Lee,Ann:45:$8544Howard,Bob:27$15900
Where "Smith, John" is the last and first name, "20" is age and "$1239" is the amount in their checking account. How do you read this line and sum up the total amount in all these customers' bank accounts? I got as far as this:
int main () {
int num;
string str;
ifstream accounts ("checking_accounts.txt");
getline (accounts, name, ":");
getline (accounts, age, "$");
}
And couldn't figure out how to get the dollar amount without reading the next person's name.
I'm trying to do this without using arrays/vectors, as my course has not covered these topics yet. Thanks for any feedback!
Given a string in a file:
Smith,John:20$1239Lee,Ann:45:$8544Howard,Bob:27$15900
Where "Smith, John" is the last and first name, "20" is age and "$1239" is the amount in their checking account. How do you read this line and sum up the total amount in all these customers' bank accounts? I got as far as this:
int main () {
int num;
string str;
ifstream accounts ("checking_accounts.txt");
getline (accounts, name, ":");
getline (accounts, age, "$");
}
And couldn't figure out how to get the dollar amount without reading the next person's name.
I'm trying to do this without using arrays/vectors, as my course has not covered these topics yet. Thanks for any feedback!
Last edited on
maybe you could use cin.get() with loops and a peek() function. I've never used peek(), so I don't know exactly how it works, but the reference section on this sight could explain how.
Hm. I would suggest just using operator >> here since you know the next part is a number and that operator will stop when it reads a non-number character.
If you know the part after the $ is going to be a number, you could simply read it into an int normally and it will read up to but not the next name.
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