Consider the following class definition: publia class Animal publie void greeting) System.out.println("Hello! ): publie class Cat extends Animal ( eoverride public void greeting() { System. out . printin ("Meow! publie elass Dog extends Animal aoverride public void greeting System.out.println("Woof! public class BigDog extends Dog ( override public void greeting System.out.print1n ("Woow! 1. (4 pts) Given the definition: Animal anlnew BigDog ) Animal an2 new Animal) BigDog dognew BigDog ) Judge the following assignments are legal or illegal. an2 = dog; . dog = anl ; . dog= (BigDog ) an2 ; . if (anl instanceof BigDog) dog (BigDog) anl; = 2. (6 pts) Find out the outputs for the following program public class TestAnimal ( public static void main(Stringi] args) ( Animal animal 1 = new Cat(); animall.greeting ): Animal animal 2 new Dog(); anima12.greeting): Animal animal 3 new BigDog(); anima13.greeting)