Make the following changes to the Penguin Rookery from Module $2$:

$$ Replace the Species class with an enumerated type.

$$ Replace the three Penguin instance variables in the rookery with an array of Penguins.

$$ If you do not already have a default constructor for the PenguinRookery, add one.

$$ Add an overloaded PenguinRookery constructor which accepts an array of Penguins as a

parameter. Name the parameter using the same name as your array instance variable and use

the this reference to assign to the instance variable in the constructor.

$$ Add a toString method to the PenguinRookery which displays the state of the rookery, including

the penguin states and total number of penguins in the rookery.

$$ Change the species instance variable in the Penguin class from int to the enumerated type.

$$ Change any parameters in the Penguin class which use the int type for the species to the

enumerated type.

$$ Add an accessor and mutator to the Penguin species to the Penguin class. Use the this reference

where needed $($required in the mutator, optional in the accessor$).$

$$ Change the toString method in the Penguin class to use the name$()$ method of the enumerated

type.

$$ Change the unit tests $($main method$)$ in the PenguinRookery class to instantiate the rookery

object using the overloaded constructor; pass a locally instantiated array of penguins to it$.$

$$ Add a unit test for the Species mutator and accessor in the main method by modifying the

Penguin array elements$$ species and then redisplaying the values $($refer to the practice exercise

solution for an example of how this should be done$).$

Expected output is as follows:

Our rookery contains the following penguins:

First penguin is a$($n$)$ CHINSTRAP.

Second penguin is a$($n$)$ GENTOO.

And the final penguin is a ADELIE.

There are a total of $3$ penguin species in our rookery.

Testing mutators and accessors

first penguin: ADELIE

second penguin: CHINSTRAP

third penguin: GENTOO

Include all source code in a single source file $($PenguinRookery$.$java$).$

Be sure your code is indented properly and includes a $4-$line ID header.