Cleaner interface exercise implementations

interfaces/go.mod

@@ -0,0 +1,3 @@
+module interfaces
+
+go 1.22.2

interfaces/main.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	"fmt"
+)
+
+type Sounder interface {
+	AnimalSound()
+}
+
+type Cat struct {
+	sound string
+}
+
+type Dog struct {
+	sound string
+}
+
+type JavaProgrammer struct {
+	sound string
+}
+
+func (c Cat) AnimalSound() {
+	fmt.Println(c.sound)
+}
+
+func (d Dog) AnimalSound() {
+	fmt.Println(d.sound)
+}
+
+func (j JavaProgrammer) AnimalSound() {
+	fmt.Println(j.sound)
+}
+
+func MakeSound(s Sounder) {
+	s.AnimalSound()
+}
+
+func main() {
+	animals := []Sounder{Cat{sound: "Meow"}, Dog{sound: "Woof"}, JavaProgrammer{sound: "*Unintelligible*"}}
+	MakeSound(animals[2])
+	MakeSound(animals[1])
+	MakeSound(animals[0])
+
+	// for _, v := range animals {
+	// 	v.AnimalSound()
+	// }
+}