Capturing User Input

Output text on the terminal

Most computer programs operate in a cycle of accepting input from the user and transforming that into some form of hopefully useful output.

A calculator without buttons is pretty useless, and a computer program without input is equally limited. We used println! in “Hello, world” to output text and we can use read_line() to accept data from the terminal.

We can run the following program by typing cargo run in a terminal.