Concepts: Classes and objects, inheritance, polymorphism

Assignment:

A veterinarian services many pets and their owners. As new pets are added to the population of pets being serviced, their information is entered into a flat text file. Each month, the vet requests a listing of all pets sorted by their outstanding bill balance. You have to write a program to produce a report of animals and their owners sorted by their outstanding bill balances from the data in the flat text file. Below is a description of the information on the text file:

The first line on the file contains the number of animals on the file (numeric)

The fields below repeat for each animal:

Owner name (String)

o Birth year (numeric)

o Bill balance (numeric) o Species (String)

o Special feature (could be numeric or String)

The animals serviced by the veterinarian are of two types: mammals and non-mammals. For a mammal the special feature field on the flat file is the number of legs of the animal (numeric). For a non-mammal the special feature field is the blood type, warm-blooded or cold-blooded (String).

Program requirements and grading:

From the information provided, write a solution that includes the following:

A suitable inheritance hierarchy which represents the pets serviced by the veterinarian. It is up to you how to design the inheritance hierarchy. I suggest an Animal class and appropriate subclasses.

For all classes include the following:

Instance variables

Constructors

Accessor and mutator methods

o Suitable toString() methods

program.txt

73

Hopper 2003 555 Kangaroo 2

Kitty-1 2009 44 Cat 4

Spotty 2005 333 Dog 4

Johnny 2008 111 Cat 4

Danny 2015 433 Dog 4

Striper 2011 432 Skunk 4

Edward 1995 630 Horse 4

Casper 1998 88 Snake Cold-Blooded

Bootsy 2005 987 Horse 4

Ryanne 2014 21 Fish Cold-Blooded

Austin 2015 1500 Monkey 2

William 2009 113 Cat 4

Marya 2013 500 Dog 4

Willy 2012 250 Snake Cold-Blooded

John34 2014 300 Cat 4

Sammy 2014 400 Tiger 4

Annie 2011 20 Bird Warm-Blooded

Sarah 2011 900 Horse 4

Robert 2011 30 Bird Warm-Blooded

Ralphy 2013 50 Chicken

Warm-Blooded

Grants 2013 150 Duck Warm-Blooded

Willy 2012 250 Snake Cold-Blooded

Green 2011 800 Horse 4

Claudia 2014 20 Squid Cold-Blooded

Dukely 2014 10 Fish Cold-Blooded

Hopper2 2003 575 Kangaroo 2

kitty2 2009 64 Cat 4

Spot2 2005 333 Dog 4

Johnny2 2008 111 Cat 4

Danly 2015 433 Dog 4

Striper2 2011 732 Skunk 4

Edward2 1995 630 Horse 4

casper2 1998 188 Snake Cold-Blooded

Boots2 2005 487 Horse 4

Ryan2 2014 110 Fish Cold-Blooded

Austin2 2015 2500 Monkey 2

William2 2009 213 Cat 4

Mary2 2013 520 Dog 4

Willy2 2012 250 Snake Cold-Blooded

John2 2014 320 Cat 4

Sammy2 2014 410 Tiger 4

Annie2 2011 120 Bird Warm-Blooded

Sarah2 2011 950 Horse 4

Raymond2 2011 130 Bird Warm-Blooded

Raymond2 2013 250 Chicken Warm-Blooded

Grant2 2013 350 Duck Warm-Blooded

Willy2 2012 350 Snake Cold-Blooded

Green2 2011 600 Horse 4

Claudia2 2014 10 Squid Cold-Blooded

Hopper3 2003 575 Kangaroo 2

kitty3 2009 64 Cat 4

Spot3 2005 333 Dog 4

Johnny3 2008 111 Cat 4

Dan3 2015 433 Dog 4

Striper3 2011 732 Skunk 4

Edward3 1995 630 Horse 4

casper3 1998 188 Snake Cold-Blooded

Boots3 2005 487 Horse 4

Ryan3 2014 110 Fish Cold-Blooded

Austin3 2015 2530 Monkey 2

William3 2009 213 Cat 4

Mary3 2013 520 Dog 4

Willy3 2012 250 Snake Cold-Blooded

John3 2014 320 Cat 4

Sammy3 2014 410 Tiger 4

Annie3 2011 120 Bird Warm-Blooded

Sarah3 2011 950 Horse 4

Ray3 2011 130 Bird Warm-Blooded

Ray3 2013 250 Chicken Warm-Blooded

Grant3 2013 350 Duck Warm-Blooded

Willy3 2012 350 Snake Cold-Blooded

Green3 2011 600 Horse 4

Claudia3 2014 15 Squid Cold-Blooded

Sample Output: Owner Year Balance Species # Legs / Blood-Type Cold-Blooded Cold-Blooded Cold-Blooded Warm-Blooded Cold-Blooded Cold-Blooded Warm-Blooded 4 Warm-Blooded 2014 Claudia2 2014 Claudia3 2014 2011 2014 2014 2011 2009 2013 2009 2009 1998 2014 2014 2008 2008 2008 2009 2011 2011 Squid Annie Claudia Ryanne Robert Kitty-1 Chicken kitty2 kitty3 Casper Cold-Blooded Cold-Blooded Cold-Blooded 4 Snake 110 110 113 120 120 4 4 Warm-Blooded Warm-Blooded William Annie3 130 130 150 188 188 213 213 250 250 250 250 250 250 300 Warm-Blooded Warm-Blooded Warm-Blooded Cold-Blooded Cold-Blooded Raymond2 2011 2011 2013 1998 1998 William2 2009 William3 2009 2012 2012 2012 Raymond2 2013 2012 2013 2014 2914 Grants casper2 casper3 Snake Snake Willy willy Willy2 Cold-Blooded Cold-Blooded Cold-Blooded Warm-Blooded Cold-Blooded Warm-Blooded Snake Snake Chicken Willy3 Chicken John34