// labelled breaks in Go
// labels must be associated (immediately precede) with for, switch or select
// select is only used in multi-threaded programs
// break use in switch is obscure side case
package main

import "fmt"

// each label is a part of the scope of its associated switch/for
// so outouter label disappear after its for loop.
func main() {
	k:=0
	outouter:
	for {
		if k>8 {
			fmt.Println("k break")
			break outouter
		}
		fmt.Printf("KK: %d\n", k)
		k++
	}
	outer:
	for i:=0; i<7; i++ {
		j:=0
		inner:
		for {
			fmt.Printf("IJ: %d %d\n", i, j)
			if i*j>12 {
				fmt.Println("IJ break")
				break outer
			}
			if j>4 {
				fmt.Println("J break")
				break inner
			}
			j++
		}
	}
	switcher(2,1)
	switcher(2,4)
}

func switcher(ii,jj int) {
	labell:
	switch (ii) {
	case 1:
		fmt.Println("ONE")
	case 2:
		if (jj>3) {
			break labell
		}
		fmt.Println("TWO")
	case 3:
		fmt.Println("three")
	}
}