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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CHALLENGE ACTIVITY 420468 2512078.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 8.19.4: Rearrange the lines to compute the total score for a single student. 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. Mouse: Drag/drop Keyboard: Grab/release Spacebar (or Enter). Move 100. Cancel Esc Unused total= total + score; while (getline(in_file, line)) in.str(line); in >> word; char ch; in.get(ch); in >> word; while (word [word.size()-1] != ',') total = 0; while (in…
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