ADD file via upload

AnimalTest.java

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+public class AnimalTest {
+    public static void main(String[] args) {
+        // Create various animal objects
+        Animal[] animals = {
+            new Fish("Nemo", 1, 2.5),
+            new Dog("Rex", 3),
+            new Cat("Whiskers", 2),
+            new Bird("Tweety", 1)
+        };
+        
+        // Test makeSound() method for all animals
+        System.out.println("=== Animal Sounds ===");
+        for (Animal animal : animals) {
+            animal.makeSound();
+        }
+        System.out.println();
+        
+        // Test play() method of Pet interface
+        System.out.println("=== Pet Play Behavior ===");
+        for (Animal animal : animals) {
+            if (animal instanceof Pet) {
+                Pet pet = (Pet) animal;
+                pet.play();
+            } else {
+                System.out.println(animal.getName() + " is not a pet and cannot play.");
+            }
+        }
+        System.out.println();
+        
+        // Test Fish's special swim() method
+        System.out.println("=== Fish Special Behavior ===");
+        Fish fish = new Fish("Dory", 2, 3.8);
+        fish.swim();
+    }
+}