meet it

Lines run in order, one after another.

A program can have lots of lines. Go runs them in order, top to bottom, like ticking off a shopping list. Everything your program shows on the screen is called its .

An empty fmt.Println() has nothing to show, so you get a blank line. It is handy for spacing things out.

You can also give fmt.Println several strings. Put a comma between them and Go shows them on one line, with a space between each.

package main
import "fmt"
func main() {
	fmt.Println("Ready")
	fmt.Println("Steady")
	fmt.Println()
	fmt.Println("Go!")
}

The commas go between the strings, outside the quote marks.

guess first

How will this look on the screen?

Guess before you run it. Wrong guesses are how you learn, and nothing is marked.

package main
import "fmt"
func main() {
	fmt.Println("Beans", "on", "toast")
}

your turn

Your turn. Write a knock knock joke.

Type who is at the door in the first two blanks, the same both times. Put your punchline in the last blank, then press run and enjoy your output.

Your code

output

press run to see what happens

fix it

The cheer will not run. Can you fix it?

Broken code to fix

output

press run to see what happens

Go stopped before showing anything. Look at what sits between the strings.
There should be a comma between each string inside the brackets.
Add a comma after "Hip" and after "hip", then press run.

nailed it

you made the computer tell a joke. :D

Lines run in order, from top to bottom.
An empty fmt.Println() makes a blank line.
Commas let one fmt.Println show several strings, with spaces between.

new words in your collection

output

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