wispborne · May 16, 2017 12:37
diff --git a/Barker.kt b/Barker.kt
 class Barker : NoiseMaker {
 override fun makeSound() {
  println("Bark!")
 }
 }
diff --git a/Dog.kt b/Dog.kt
 class Dog : NoiseMaker {
  private val barker = Barker()
  
  override fun makeSound() {
    // Delegate to the Barker class instead of implementing it here
   barker.makeSound() 
  }
 }
diff --git a/NoiseMaker.kt b/NoiseMaker.kt
 interface NoiseMaker {
  fun makeSound()
 }
	class Dog : NoiseMaker {
	private val barker = Barker()

	override fun makeSound() {
	// Delegate to the Barker class instead of implementing it here
	barker.makeSound()
	}
	}