Creating a Sequential File - C++ File Stream

C++ examples for File Stream:stream

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Description

Creating a Sequential File

Demo Code

#include <cstdlib>
#include <fstream>
#include <iostream>
#include <string>

int main(int argc, const char *argv[]) {
    // ofstream constructor opens file
    std::ofstream outClientFile("clients.txt", std::ios::out);

    // exit program if unable to create file
    if (!outClientFile) {  // overloaded ! operator
        std::cerr << "File could not be opened" << std::endl;
        return 0;
    }/*from   w  w  w .  ja  v  a2s .  c  o m*/

    std::cout << "Enter the account, name, and balance." << std::endl
              << "Enter end-of-file to end input.\n? ";

    int account;
    std::string name;
    double balance;

    // read account, name and balance from cin, then place in file
    while (std::cin >> account >> name >> balance) {
        outClientFile << account << ' ' << name << ' ' << balance << std::endl;
        std::cout << "? ";
    }

    return 0;
}

Result


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