Write formatted output to a text file. - C++ File Stream

C++ examples for File Stream:Text File

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Description

Write formatted output to a text file.

Demo Code

#include <iostream>
#include <fstream>
using namespace std;
int main()//from www .j  a v  a  2s . c  om
{
   ofstream fout("test.dat");
   // Verify that the file has been successfully opened.
   if(!fout) {
      cout << "Cannot open file.\n";
      return 1;
   }
   // Write output to the file.
   fout << 10 << " " << -20 << " " << 30.2 << "\n";
   fout << "This is a test.";
   // Explicitly close the file.
   fout.close();
   if(!fout.good()) {
      cout << "A file error occurred.";
      return 1;
   }
}

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