ecornell · April 3, 2015 20:13 · Apr 3, 2015
diff --git a/AnimalArray.java b/AnimalArray.java
@@ -0,0 +1,65 @@
+// Animal.java
+
+public class Animal {
+    protected String type;
+
+    public Animal() {
+        type = "Unknown";
+    }
+
+    public String getType() {
+        return type;
+    }
+}
+
+
+// Cat.java
+
+public class Cat extends Animal {
+
+    public Cat() {
+        type = "Cat";
+    }
+
+}
+
+// Dog.java
+
+public class Dog extends Animal {
+
+    public Dog() {
+        type = "Dog";
+    }
+
+}
+
+
+// AnimalArray.java
+
+import java.util.ArrayList;
+
+public class AnimalArray {
+
+    public static void main(String[] args) {
+
+        Cat cat = new Cat();
+        Dog dog = new Dog();
+
+        ArrayList<Animal> animalList = new ArrayList<Animal>();
+
+        animalList.add(cat);
+        animalList.add(dog);
+
+        for (Animal animal : animalList) {
+            System.out.println( animal.getType() );
+        }
+    }
+}
+
+
+// Output
+//
+// Cat
+// Dog
+
+