Question

I want to create a file using C++, but I have no idea how to do it. For example I want to create a text file named Hello.txt.

Can anyone help me?

Answer 1

One way to do this is to create an instance of the ofstream class, and use it to write to your file. Here’s a link to a website that has some example code, and some more information about the standard tools available with most implementations of C++:

ofstream reference

For completeness, here’s some example code:

// using ofstream constructors. #include <iostream> #include <fstream>    std::ofstream outfile ('test.txt');  outfile << 'my text here!' << std::endl;  outfile.close(); 

You want to use std::endl to end your lines. An alternative is using ‘\n’ character. These two things are different, std::endl flushes the buffer and writes your output immediately while ‘\n’ allows the outfile to put all of your output into a buffer and maybe write it later.