package main
import "fmt"
//import "reflect"
type Animal interface {
Sleep()
Age() int
Type() string
}
type Cat struct {
MaxAge int
}
func (this *Cat) Sleep() {
fmt.Println("Cat need sleep")
}
func (this *Cat) Age() int {
return this.MaxAge
}
func (this *Cat) Type() string {
return "Cat"
}
type Dog struct {
MaxAge int
}
func (this *Dog) Sleep() {
fmt.Println("Dog need sleep")
}
func (this *Dog) Age() int {
return this.MaxAge
}
func (this *Dog) Type() string {
return "Dog"
}
func Factory(name string) Animal {
switch name {
case "dog":
return &Dog{MaxAge: 20}
case "cat":
return &Cat{MaxAge: 10}
default:
panic("No such animal")
}
}
func main() {
animal := Factory("cat")
animal.Sleep()
fmt.Printf("%s max age is: %d", animal.Type(), animal.Age())
}
