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interfaces03.go
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interfaces03.go
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/* RZFeeser | Alta3 Research
CHALLENGE 01 - adding "snooze() int" to animal interface */
package main
import "fmt"
type animal interface {
breathe()
walk()
snooze() int // this must also RETURN int
}
type tiger struct {
age int
}
func (l tiger) breathe() {
fmt.Println("tiger breathes")
}
func (l tiger) walk() {
fmt.Println("tiger walk")
}
func (l tiger) snooze() int {
fmt.Println("tiger slept for several hours")
return 10
}
type giraffe struct {
age int
}
func (l giraffe) breathe() {
fmt.Println("giraffe breathes")
}
func (l giraffe) walk() {
fmt.Println("giraffe walk")
}
func (l giraffe) snooze() int {
fmt.Println("giraffe slept for a little bit")
return 5
}
func main() {
l := tiger{age: 10}
callBreathe(l)
callWalk(l)
callSnooze(l)
d := giraffe{age: 5}
callBreathe(d)
callWalk(d)
}
func callBreathe(a animal) {
a.breathe()
}
func callWalk(a animal) {
a.breathe()
}
func callSnooze(a animal) {
a.snooze()
}