Streams

Reading and Writing Text Files

Open a file for writing.

ofstream output_data;
output_data.open("output.dat");

Send information to the file in the usual way.
```
output_data << n << " " << x << "\n";
```
To write a single character to a file use
```
output_data.put(ch);
```
When you are done, remember to close the file.
```
output_data.close();
```