Object Zoo

In this project, you will practice the skills involved in Object Oriented Programming. To achieve this, you will create a Zoo with a few different types of animals:

• Cats
• Lions
• Deer
• Moose, and
• Chimpanzee

For each of these and the Zoo you will need to design a class with the appropriate fields, methods, and constructors.

Class Descriptions

Below is the API for each class you will need to design for this project. You will also need the Javadocs for the included Color class.

Zoo

All fields of the Zoo should be private. it should also implement the following API.

public int countAnimls(){} //returns the number of animals in the Zoo.
public void addCat(Cat x){} //Adds the given Cat to the Zoo.
public void addLion(Lion x){} //Adds the given Lion to the Zoo.
public void addDeer(Deer x){} //Adds the given Deer to the Zoo.
public void addMoose(Moose x){} //Adds the given Moose to the Zoo.
public void addChimpanzee(Chimpanzee x){} //Adds the given Deer to the Zoo.
public Moose mateMoose(Moose a, Moose b){} //Returns a new Moose of random sex and a Color the average of the two parent Moose.
public ArrayList<Object> getAllAnimlas(){} //Returns an ArrayList containing all the animals in the Zoo.

Animals

Animals should also have only private fields. They should also all have the following methods:

public Color getColor(){} //Returns the Color of the animal.
public int getWeight(){} //Returns the Weight of the given animal.
public void eat(int w){} //Causes the animal to eat and increases its weight by w.
public boolean isMale(){} //Returns if the animal is male.
public boolean isFemale(){} //For gender equality returns if the animal is female.
public void speak(){} //Returns the speech of the animal according to its definition.
public static int population(){} returns the number of animals of that class (or its subclasses) that have been created.

Speak() method

The following is a description of how each animal should speak.

• Cat prints "Meow!" to the terminal.
• Lion prints "Roar!" to the terminal.
• Deer prints "Deer Sounds!" to the terminal.
• Moose prints "Moose Sounds!" to the terminal.
• Chimpanzee prints "Oo oo aa aa!" to the terminal.

Printing is always done on its own line.

Overriding Methods

When one method overrides the method of a parent class, the @Override tag should be used directly above the method heading. The speak() method in particular should always override its superclass (when there is one).

When possible classes should inherit and not override their parent's method.

Constructors

Your zoo and animal classes should all have no-args constructors. Additionally, each animal should have at least a constructor which takes only a Color, for example:

public Moose(Color x) //returns a Moose of the given color.