Problem $2\mathrm{.}3(30$ points$)-$ OOP, Using and Creating ADTs

In the HeartTransplant assignment the HeartTransplant class stores patients on an array of Patient objects called patients. Patients are inserted into the array from the input file using the readPatients$()$ method. Refer to the classes below. Not all instance variables and methods are shown because of space constraints.

public class HeartTransplant $\{$

I$/$ patient array, each Patient is read from the data file

private Patient $[$i patients;

$//$ NOT ALL methods and instance variables are shown because of space constraint

$1*$ Default constructor: initializes all instance variables to null Returns patients array

Initialize the instance variable patients array with numberoflines length.

Reads from the command line data file.

File Format:

ID$,$ Ethnicity, Gender, Age, Cause, Urgency, State of health

Forh line corresponds to one Patient, all values are integers.

For each line

Creates a Patient object and inserts it into the array

public void readPatients $($int numberoflines$)\{$

$//$ Implementation not shown

$\}$

$1*$