main.go

package main

import "fmt"

const (
	GENDER_NEUTRAL = iota
	GENDER_MALE
	GENDER_FEMALE
	GENDER_UNKNOWN
)

func genderString(gen int) string {
	switch gen {
	case GENDER_NEUTRAL:
		return "Neutral"
	case GENDER_MALE:
		return "Male"
	case GENDER_FEMALE:
		return "Female"
	}
	return "Unknown"
}

type person struct {
	name string
	gen  int
}

func newPerson() *person {
	return new(person)
}

func (p *person) setName(name string) {
	p.name = name
}

func (p *person) setGender(gen int) {
	p.gen = gen
}

func (p person) print_() {
	fmt.Println(p.name, genderString(p.gen))
}

func main() {
	p := newPerson()
	p.setName("kaneshin")
	p.setGender(GENDER_MALE)
	p.print_()
}