How to write code in c++ that will write messages to a document?

Question

C++ / C#

Hello, I'm new to ++, I'm currently learning from shieldt's guide. I'm wondering what tools or libraries you need to have to do this? Please, help

Answer 1

#include <fstream>

int main()
{
  std::ofstream out("test.txt");
  if (out.is_open())
  {
    out << "Hello, World!";
  }
  
  out.close();

  return 0;
}