Pemrosesan File CSV di C++

#include <iostream>
#include <fstream>
#include <sstream>
#include <vector>
#include <string>
using namespace std;

int main() {
    string namaFile = "data.csv";
    ifstream file(namaFile);

    if (!file.is_open()) {
        cerr << "Tidak dapat membuka file: " << namaFile << endl;
        return 1;
    }

    vector<vector<string>> data; // Menyimpan data CSV
    string baris;

    // Membaca baris demi baris
    while (getline(file, baris)) {
        stringstream ss(baris);
        string sel; // Untuk menyimpan sel individual
        vector<string> barisData;

        // Memisahkan elemen berdasarkan koma
        while (getline(ss, sel, ',')) {
            barisData.push_back(sel);
        }

        data.push_back(barisData);
    }

    file.close();

    // Menampilkan data yang telah dibaca
    cout << "Data dalam file CSV:\n";
    for (const auto& baris : data) {
        for (const auto& sel : baris) {
            cout << sel << "\t";
        }
        cout << endl;
    }

    return 0;
}

#include <iostream>
#include <fstream>
#include <vector>
#include <string>
using namespace std;

int main() {
    string namaFile = "output.csv";
    ofstream file(namaFile);

    if (!file.is_open()) {
        cerr << "Tidak dapat membuka file: " << namaFile << endl;
        return 1;
    }

    // Data untuk ditulis ke file
    vector<vector<string>> data = {
        {"Nama", "Umur", "Kota"},
        {"Alice", "30", "Jakarta"},
        {"Bob", "25", "Bandung"},
        {"Charlie", "35", "Surabaya"}
    };

    // Menulis data ke file CSV
    for (const auto& baris : data) {
        for (size_t i = 0; i < baris.size(); ++i) {
            file << baris[i];
            if (i < baris.size() - 1) file << ","; // Tambahkan koma kecuali di akhir baris
        }
        file << endl; // Baris baru setelah setiap baris data
    }

    file.close();
    cout << "Data berhasil ditulis ke " << namaFile << endl;

    return 0;
}

#include <iostream>
#include <fstream>
#include <sstream>
#include <vector>
#include <string>
using namespace std;

int main() {
    // Membaca file CSV
    string inputFile = "data.csv";
    string outputFile = "output.csv";

    ifstream fileIn(inputFile);
    ofstream fileOut(outputFile);

    if (!fileIn.is_open() || !fileOut.is_open()) {
        cerr << "Tidak dapat membuka file.\n";
        return 1;
    }

    string baris;

    while (getline(fileIn, baris)) {
        stringstream ss(baris);
        string sel;
        vector<string> barisData;

        while (getline(ss, sel, ',')) {
            barisData.push_back(sel);
        }

        // Memproses data (contoh: menambahkan string "Processed")
        for (size_t i = 0; i < barisData.size(); ++i) {
            barisData[i] += "_Processed";
        }

        // Menulis data ke file output
        for (size_t i = 0; i < barisData.size(); ++i) {
            fileOut << barisData[i];
            if (i < barisData.size() - 1) fileOut << ",";
        }
        fileOut << endl;
    }

    fileIn.close();
    fileOut.close();

    cout << "Data berhasil diproses dan ditulis ke " << outputFile << endl;
    return 0;
}

Nama,Umur,Kota
Alice,30,Jakarta
Bob,25,Bandung
Charlie,35,Surabaya

Nama_Processed,Umur_Processed,Kota_Processed
Alice_Processed,30_Processed,Jakarta_Processed
Bob_Processed,25_Processed,Bandung_Processed
Charlie_Processed,35_Processed,Surabaya_Processed