Rewrite string() method in go language

Go In language String Method

stay go If overridden String Method , That's calling fmt.Println Will automatically execute String Method

stay fmt Interface is defined in

stay go If static constants are defined in , And used iota when , It is best to set a for static constants String Method
type State int

const (
Running State = iota
Stopped
Rebooting
Terminated
)

func (s State) String() string {
switch s {
case Running:
return “Running”
case Stopped:
return “Stopped”
case Rebooting:
return “Rebooting”
case Terminated:
return “Terminated”
default:
return “Unknown”
}
}

func main(){
state := Running
fmt.Println(“state”, state) // Not added String When the method is used . Entered as 0 Output as after adding "Running"
}