package main

import "fmt"

func demo() {
	defer func() {
		defer func() {
			// recover panic 2
			fmt.Println("panic", recover(), "is recovered")
		}()

		// recover panic 1
		defer fmt.Println(" (done).")
		defer recover()
		defer fmt.Print("To recover panic 1 ...")

		defer fmt.Println("now, two active panics coexist")
		panic(2) // If this line is commented out, then the program will not crash.
	}()
	panic(1)
}

func main() {
	demo()
}