package main

import "fmt"

type Weekday int

const (
	Sunday Weekday = iota
	Monday
	Tuesday
	Wednesday
	Thursday
	Friday
	Saturday
)

func (e Weekday) String() string {
	names := [...]string{
		"sunday",
		"monday",
		"tuesday",
		"wednesday",
		"thursday",
		"friday",
		"saturday",
	}
	return names[e]
}

func main() {
	fmt.Printf("monday = %+v\n", Monday)
}