/** * AnimalArray implements methods which store and get animal * names to and from an array of strings. * * TODO: Complete the implementation of the two methods below: * - insertAnimal() * - getAnimalNames() */ public class AnimalArray { /** * Inserts a new animal to the next (smallest) unused index * within the provided animals array. * * @param animalName - the name of the new animal being added * @param animals - an array storing animal names. * @return true when the animal's name is added to the array * false when animalName cannot be added to the array, * because it is already full */ public static boolean insertAnimal(String animalName, String[] animals) { // TODO: implement this method } /** * Returns a comma separated string containing the names of every * animal in the provided array animals, in the order that they * were inserted in the array. * * animals - an array storing animal names. * @return - string containing names of animals held in the array * returns an empty string if the array is empty */ public static String getAnimalNames(String[] animals) { // TODO: implement this method return null; } /** * Tests whether animals added to a given array of animals are * returned by getAnimalNames method in the correct format and * expected order. * * @return - true when this test passes, and false otherwise */ private static boolean testAnimalArray() { String[] animalNames = new String[100]; insertAnimal("Alligator", animalNames); insertAnimal("Beaver", animalNames); insertAnimal("Cheetah", animalNames); insertAnimal("Dog", animalNames); insertAnimal("Elephant", animalNames); insertAnimal("Fish", animalNames); String expected = "Alligator, Beaver, Cheetah, Dog, Elephant, Fish"; if(!getAnimalNames(animalNames).contains(expected)) return false; return true; } }