Исходники и презентации

lessons/interfaces/duck_typing/main.go

@@ -0,0 +1,34 @@
+package main
+
+import "fmt"
+
+// Need to show solution
+
+type Duck interface {
+	Talk() string
+	Walk()
+	Swim()
+}
+
+type Dog struct{}
+
+func (d Dog) Talk() string {
+	return "AAAGGGRRR"
+}
+
+func (d Dog) Walk() {
+	fmt.Println("Walking...")
+}
+
+func (d Dog) Swim() {
+	fmt.Println("Swimming...")
+}
+
+func CatchDuck(duck Duck) {
+	fmt.Println("Catching...")
+}
+
+func main() {
+	dog := Dog{}
+	CatchDuck(dog)
+}