So far, we’ve read data and written it to screen and/or files in almost every chapter in this book. For brevity, and to stay focused on other features of the language, I only briefly mentioned what we did and why, so I haven’t explained in much detail about how it works. Before we jump into a more concrete miniproject (a note-taking app), we’ll first spend some time getting familiar with the basics. In this section, we’ll start with the most basic I/O tasks–reading user input from the keyboard, and writing data to the screen.
Your first I/O: Input from the keyboard and output to the screen