September 2017 Update

Task/Inheritance-Single/Kotlin/inheritance-single.kotlin

@@ -0,0 +1,32 @@
+// version 1.0.6
+
+open class Animal {
+    override fun toString() = "animal"
+}
+
+open class Dog : Animal() {
+    override fun toString() = "dog"
+}
+
+class Cat : Animal() {
+    override fun toString() = "cat"
+}
+
+class Labrador : Dog() {
+    override fun toString() = "labrador"
+}
+
+class Collie : Dog() {
+    override fun toString() = "collie"
+}
+
+fun main(args: Array<String>) {
+    val felix: Animal = Cat()
+    val rover: Animal = Dog()
+    val bella: Dog = Labrador()
+    val casey: Dog = Collie()
+    println("Felix is a $felix")
+    println("Rover is a $rover")
+    println("Bella is a $bella")
+    println("Casey is a $casey")
+}