ASWER ONLY THE TASK 2.2 WHILE USING JAVA

Task 2.1 Requirement Write a Class Animal, that contains . Data members : name gender age type a staic ArrayList that holds all legal types Originally only contains "Cat", "Dog" and "Monkey", but the list can be expended or shortened in the future. Methods: Default constructor Constructor with all data members Copy constructor boolean is TypeValid (String type) equals toString . Task 2.2 Write a Class Zoo, that contains . Data members: animals a collection of animals, the number is NOT FIXED, you can add a new animal or remove one from it. Methods: Default constructor Constructor with all data members Copy bonstructor int countAnimals(String type) count in the zoo, how many animals belong to a certain type void updateValidTypes go through all animals in the zoo and check if there is a valid type in the ArrayList from which no animals in the zoo belong to that type. If so, remove the type from the valid type ArrayList. boolean isGender Balanced(String type) check if, for a specific type, the difference between the number of female and number of male is less than 20% of the total number of animals of that type. void removeOldest(String type) first check if the type is valid or not, if it is valid, then remove the oldest animal(s) of a certain type from the animals (if two animals have the same age, remove both), it calls updateValidTypes() in the end