String Streams with std::stringstream for Parsing0%

Project 1: Object-Oriented Student Management System with File Persistence

String Streams with std::stringstream for Parsing

Intermediate12 min read•Updated: 2026-10-22

🧵 String Streams with std::stringstream for Parsing

Introduction

The <sstream> header provides stream capabilities over in-memory std::string objects. std::stringstream is the standard tool for parsing formatted text, tokenizing CSV records, and converting between numbers and strings.

🧩 CSV Tokenization with `std::getline`

1#include <iostream>
2#include <sstream>
3#include <string>
4#include <vector>
5 
6struct StudentEntry {
7    int id;
8    std::string name;
9    double percentage;
10};
11 
12int main() {
13    // Simulated CSV row from database export:
14    std::string csvRow = "104,Pradeep Singh,84.5";
15 
16    std::stringstream ss(csvRow);
17    std::string idStr, name, percentageStr;
18 
19    // Tokenize using comma delimiter:
20    if (std::getline(ss, idStr, ',') &&
21        std::getline(ss, name, ',') &&
22        std::getline(ss, percentageStr, ',')) {
23 
24        StudentEntry student;
25        student.id = std::stoi(idStr);            // String to Integer
26        student.name = name;
27        student.percentage = std::stod(percentageStr); // String to Double
28 
29        std::cout << "Parsed Student Entry:\n";
30        std::cout << "  Roll No   : " << student.id << "\n";
31        std::cout << "  Name      : " << student.name << "\n";
32        std::cout << "  Percentage: " << student.percentage << "%\n";
33    }
34 
35    return 0;
36}

🔄 Building Complex Strings with `stringstream`

1#include <iostream>
2#include <sstream>
3#include <iomanip>
4 
5int main() {
6    std::stringstream buffer;
7    buffer << "RECEIPT-#" << 48201 
8           << " | Amount: ₹" << std::fixed << std::setprecision(2) << 3499.00
9           << " | Status: CLEARED";
10 
11    std::string formattedReport = buffer.str();
12    std::cout << formattedReport << "\n";
13    return 0;
14}

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Reading/Writing Binary Files with read() and write()	Project 1: Object-Oriented Student Management System with File Persistence

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Project 1: Object-Oriented Student Management System with File Persistence

String Streams with std::stringstream for Parsing

Intermediate12 min read•Updated: 2026-10-22

Study Materials

🧵 String Streams with std::stringstream for Parsing

Introduction

🧩 CSV Tokenization with `std::getline`

1#include <iostream>
2#include <sstream>
3#include <string>
4#include <vector>
5 
6struct StudentEntry {
7    int id;
8    std::string name;
9    double percentage;
10};
11 
12int main() {
13    // Simulated CSV row from database export:
14    std::string csvRow = "104,Pradeep Singh,84.5";
15 
16    std::stringstream ss(csvRow);
17    std::string idStr, name, percentageStr;
18 
19    // Tokenize using comma delimiter:
20    if (std::getline(ss, idStr, ',') &&
21        std::getline(ss, name, ',') &&
22        std::getline(ss, percentageStr, ',')) {
23 
24        StudentEntry student;
25        student.id = std::stoi(idStr);            // String to Integer
26        student.name = name;
27        student.percentage = std::stod(percentageStr); // String to Double
28 
29        std::cout << "Parsed Student Entry:\n";
30        std::cout << "  Roll No   : " << student.id << "\n";
31        std::cout << "  Name      : " << student.name << "\n";
32        std::cout << "  Percentage: " << student.percentage << "%\n";
33    }
34 
35    return 0;
36}

🔄 Building Complex Strings with `stringstream`

1#include <iostream>
2#include <sstream>
3#include <iomanip>
4 
5int main() {
6    std::stringstream buffer;
7    buffer << "RECEIPT-#" << 48201 
8           << " | Amount: ₹" << std::fixed << std::setprecision(2) << 3499.00
9           << " | Status: CLEARED";
10 
11    std::string formattedReport = buffer.str();
12    std::cout << formattedReport << "\n";
13    return 0;
14}

Next Lesson

Project 1: Object-Oriented Student Management System with File Persistence

Continue learning with hands-on practice, examples, and exercises in the upcoming topic.

Related Lessons

Previous Lesson	Next Lesson
Reading/Writing Binary Files with read() and write()	Project 1: Object-Oriented Student Management System with File Persistence

Practice Quiz

Test your understanding of this lesson with 1 questions. Each question has one correct answer.

Previous Next

🧵 String Streams with std::stringstream for Parsing

Introduction

🧩 CSV Tokenization with std::getline

🔄 Building Complex Strings with stringstream

Project 1: Object-Oriented Student Management System with File Persistence

Related Lessons

Practice Quiz

Loading Page Content...

🧵 String Streams with std::stringstream for Parsing

Introduction

🧩 CSV Tokenization with std::getline

🔄 Building Complex Strings with stringstream

Project 1: Object-Oriented Student Management System with File Persistence

Related Lessons

Practice Quiz

🧩 CSV Tokenization with `std::getline`

🔄 Building Complex Strings with `stringstream`

🧩 CSV Tokenization with `std::getline`

🔄 Building Complex Strings with `stringstream`