How do I create a custom method that adds an Object to a list

Question

I want to create a method called addAnimal(Animal a) that adds an Animal object to a zoo list.

Answer 1

Jay Make ArrayList of Animal object

ArrayList<Animal> al = new ArrayList<Animal>();

Animal a1 = new Animal();

al.add(a1);

Answer 2

In what language? And could you post the code of the class you made?