CHALLENGE ACTIVITY 8.19.4: Rearrange the lines to compute the total score for a single student. 504702.3407966.qx3zqy7 Consider a comma-separated file that contains student names and scores such as the following: Jane Lee, 100, 98, 97, 100 Aaron X. Schmidt, 37, 42, 49, 54 Frank von Tardy, 2, 3, 10, 7 We can read the file one line at a time and use an istringstream object to process the scores. To get the position of the first comma, simply read words from the input stream until the word ends with a comma. Then, read and sum the numbers remaining on the line. Use get to remove the commas following each number. Rearrange the lines below to compute the total score for a single student. Assume that each student has at least one score. How to use this tool Unused while (getline(in_file, line)) { } char ch; in.get (ch); { } while (word[word.size() 1] != ',') total = 0; while (in >> score) istringstream in; total total score; in >> word; main.cpp ✓ #include #include #include using namespace std; int main() { ifstream in_file; in_file.open("scores.txt"); string line; int total; int score; string word; Full screen } Load default template... cout << "Total score: " << total << endl;

CHALLENGE ACTIVITY 8.19.4: Rearrange the lines to compute the total score for a single student. 504702.3407966.qx3zqy7 Consider a comma-separated file that contains student names and scores such as the following: Jane Lee, 100, 98, 97, 100 Aaron X. Schmidt, 37, 42, 49, 54 Frank von Tardy, 2, 3, 10, 7 We can read the file one line at a time and use an istringstream object to process the scores. To get the position of the first comma, simply read words from the input stream until the word ends with a comma. Then, read and sum the numbers remaining on the line. Use get to remove the commas following each number. Rearrange the lines below to compute the total score for a single student. Assume that each student has at least one score. How to use this tool Unused while (getline(in_file, line)) { } char ch; in.get (ch); { } while (word[word.size() 1] != ',') total = 0; while (in >> score) istringstream in; total total score; in >> word; main.cpp ✓ #include #include #include using namespace std; int main() { ifstream in_file; in_file.open("scores.txt"); string line; int total; int score; string word; Full screen } Load default template... cout << "Total score: " << total << endl;

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

CHALLENGE 8.19.4: Rearrange the lines to compute the total score for a single student.
ACTIVITY
504702.3407966.qx3zqy7
Consider a comma-separated file that contains student names and scores such as the following:
Jane Lee, 100, 98, 97, 100
Aaron X. Schmidt, 37, 42, 49, 54
Frank von Tardy, 2, 3, 10, 7
We can read the file one line at a time and use an istringstream object to process the scores. To get the position of the first
comma, simply read words from the input stream until the word ends with a comma. Then, read and sum the numbers remaining
on the line. Use get to remove the commas following each number.
Rearrange the lines below to compute the total score for a single student. Assume that each student has at least one score.
How to use this tool
Unused
while (getline (in_file, line))
{
}
char ch;
in.get (ch);
{
}
while (word [word.size() - 1] != ',')
total = 0;
while (in >> score)
istringstream in;
total = total + score;
in >> word;
main.cpp
#include <iostream>
#include <fstream>
#include <sstream>
using namespace std;
int main()
{
ifstream in_file;
in_file.open("scores.txt");
string line;
int total;
int score;
string word;
Full screen
}
Load default template...
cout << "Total score: " << total << endl;

total = total + score;
in >> word;
in.str(line);
in >> word;
{

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