The primary objective is to explore inheritance, interfaces, and their integration while managing pets treated and boarded at an animal hospital.

Class: Pet

The class should have the three private data members: $$petName$($String$),$ownerName$($String$),$ and $$color$($String$)$ along with one protected data member $$gender$($int$)$ representing male$(0)$ or female$(1).$

Public methods:

$$ Constructor: Pet$($String petName, String ownerName, String color$)$

$$ String getPetName$()$

$$ String getOwnerName$()$

$$ String getColor$()$

$$ void setGender$($int genderid$)$

$$ String getGender$()$: Return the string equivalent of the gender, e$.$g $$Male$$

$$ String toString$()$: Return the name, owner$$s name, age, color, and gender

A Sample $($preferred$)$ return value by toString is as follows:

Spot owned by Mary.

Color: Black and White

Gender: Male

Interface: Boardable

This interface should contain the following public methods:

$$ void setBoardStart$($int month, int day, int year$)$;

$$ void setBoardEnd$($int month, int day, int year$)$;

$$ boolean boarding$($int month, int day, int year$)$;

Refer to the Cat and Dog classes for implementing details. Note: Month ranges from $1$ to$12,$ day ranges from $1$ to$31,$ and year is a four$-$digit number.

Class: Cat

This class extends the Pet class and implements the Boardable interface. It introduces a private data member, hairLength, and provides the following public methods:

$$ Cat $($String name, String ownerName, String color, String hairLength$)$:

Constructor for Cat object, invoking the superclass constructor.

$$ String getHairLength$()$: Retrieves the hair length of the cat.

$$ String toString$()$: Returns a detailed description of the cat, including the values from the Pet parent class.

To implement the Boardable interface, define new data members are added to store boarding start and end dates. The setBoardStart and setBoardEnd methods are implemented to set values for these dates, and a boarding method is provided to determine if the given date falls within the boarding period, returning true if it does, including cases where the date matches the start or end date.

A Sample $($preferred$)$ return value by toString is as follows:

CAT:

Tom owned by Bob.

Color: black

Sex: spayed

Hair: short

Class: Dog

This class should extend the Pet class and implement the Boardable interface. The Dog class should include a private string data member $$size$$ in addition to inherited members from Pet.

Public methods provided should include:

$$ Dog $($String name, String ownerName, String color, String size$)$: Initialize size and calls super.

$$ String getSize$()$: Returns the size

$$ String toString$()$ :Returns a String identifying the pet as Dog and providing a complete description, including values from the Pet parent class.

A Sample $($preferred$)$ return value by toString is as follows:

DOG:

Spot owned by Susan.

Color: white

Sex: spayed

Size: medium

Class: AnimalHospital

This class neither extends other classes nor implements interfaces. It utilizes existing classes.

Declare final const fields for:

$$ HOSPITAL$\_$NAME

$$ MAX$\_$CAPACITY: Maximum number of animals the hospital can accommodate.

$$ DEFAULT$\_$TREATMENT$\_$COST: default cost for treatments.

$$ ACCEPTED$\_$ANIMAL$\_$CATEGORIES: Categories of animals the hospital accepts.

Public methods to be provided include:

$$ AnimalHospital$($String inputFile$)$: Constructor takes a filename and read records for animals $($starting with $$CAT$$ or $$DOG$),$ and creates Dog or Cat objects. It invokes the $$setBoardSrart$$ and $$setBoardEnd$$ methods during object creation.

$$ void printPetInfoByName$($String name$)$: Searches for pets with the given given name, and print their information using toString$().$

$$ void printPetInfoByOwner$($String name$)$: Searches for pets owned by the given person and print their information using toString$().$

$$ void printPetsBoarding$($int month, int day, year$)$: Searches for pets boarding at the specified time and print their information using toString$()$

$$ void printHospitalInfo$()$: Displays hospital information.

Sample of input data file: pets.txt

PET

Spot

Mary

Black and White

Male

CAT

Spot

Bob

Black

Female

Short

DOG

Hipper

James

Dark Brown

Female

Large

END

Driver Program:

public static void main$($String$[]$ args$)$

$\{$

AnimalHospital hospital $=$ new AnimalHospital$("$pets$.$txt$")$;

System.out.println$("$Animal Hospital Information:"$)$;

hospital. printHospitalInfo$()$;

System.out.println$("$Pets Named Spot"$)$;

hospital.printPetInfoByName$("$Spot$")$;

System.out.println$("")$;

System.out.println$("$Pets Owned by James"$)$;

hospital.printPetInfoByOwner$("$James$")$;

System.out.println$("")$;

System.out.println$("$Pets Currently Boarded"$)$;

hospital.printPetsBoarding$(1,14,2021)$;

$\}$