Exercise 16. Reading and Writing Files
If you did the Study Drills from the last exercise you should have seen all sorts of commands (methods/functions) you can give to files. Here’s the list of commands I want you to remember:
close – Closes the file. Like
File->Save.. in your editor.
read – Reads the contents of the file. You can assign the result to a variable.
readline – Reads just one line of a text file.
truncate – Empties the file. Watch out if you care about the file.
write('stuff') – Writes “stuff” to the file.
For now, these are the important commands you need to know. Some of them take parameters, but we do not really care ...