using java Complete TODO $1$ in the class Patient, and TODOs $2$ and $3$ in the class HospitalmanagementSystem.

$-$ Assume that all getters and setters are appropriately coded for all private attributes of all classes.

$-$ The static method Math.Random$()$ returns a double value with a positive sign, greater than or equal to $0\mathrm{.}0$ and less than $1\mathrm{.}0.$

$-$ You can add methods$/$attributes as you see fit.

$-$ The output of running the main method is provided after the code.

Doctor.java

import java.util.ArrayList;

public class Doctor $\{$

private String name;

private int id;

private double salary;

$//$ a list of patients the doctor currently assigned to$.$

ArrayList patients$=$new ArrayList$()$;

public void addPatient$($Patient p$)\{$

patients.add$($p$)$;

$\}$

public Doctor$($String name, int id$,$int salary$)\{$

super$()$;

this.name $=$ name;

this.id $=$ id;

this.salary$=$salary;

$\}$

$\}$

$2|7$

Patient.java

import java.util.ArrayList;

public class Patient $\{$

private String patientName;

private String patientCode; $//$ unique identification number consisting of $10$ digits

private String address;

private int age;

private boolean highPriority; $//$ true if high priority, false if not

static ArrayList codeList$=$new ArrayList$()$;

public Patient$($String patientName, String address, int age$)\{$

this.patientName $=$ patientName;

this.patientCode $=$ generatePatientCode$()$;

this.address $=$ address;

this.age$=$age;

highPriority$=$false;

$\}$

$/*$TODO $1$: Create the method to generate the patientCode, which consists

of $10$ randomly generated numbers.

The generated code should be unique for each patient. $*/$

private String generatePatientCode$()$

$\{$

$\}$

HospitalManagementSystem.java

$3|7$

import java.util.ArrayList;

public class HospitalManagementSystem $\{$

ArrayList doctors$=$new ArrayList$()$;

ArrayList departments $=$new ArrayList$()$;

ArrayList patientList$=$new ArrayList$()$;

public void addDoctor$($Doctor doc$)$

$\{$

doctors.add$($doc$)$;

$\}$

$//$TODO $2$: write the code for the method to print the total salaries of all doctors.

public double printTotalSalaries$()\{$

$\}$

$/*$ TODO $3$: Write a method to return a reference to the most popular doctor. The most

popular doctor is the one who has most appointments. If two doctors have the same

number of patients, you may return a reference to any of them. $*/$

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

$4|7$

$\{$

HospitalManagementSystem system$=$new HospitalManagementSystem$()$;

Patient p$=$new Patient$("$Mohammed$",$"Qatar",$77)$;

Patient p$1=$new Patient$("$Yuki$",$"Japan",$40)$;

Patient p$2=$new Patient$("$Nusret$",$"Turkey",$50)$;

Patient p$3=$new Patient$("$Michael$",$"USA",$20)$;

Patient p$4=$new Patient$("$Ali$",$"Iran",$66)$;

Patient p$5=$new Patient$("$Rabeh$",$"Algeria",$60)$;

Patient p$6=$new Patient$("$Mathews$",$"Australia",$50)$;

Patient p$7=$new Patient$("$Rashid$",$"Jordan",$199)$;

Doctor d$1=$new Doctor$("$Amal$",50,500)$;

system.addDoctor$($d$1)$;

$//$ Assigning patients to d$1$

d$1.$addPatient$($p$)$;

d$1.$addPatient$($p$1)$;

d$1.$addPatient$($p$2)$;

Doctor d$2=$new Doctor$("$Omar$",50,500)$;

system.addDoctor$($d$2)$;

$//$ Assigning patients to d$2$

d$2.$addPatient$($p$4)$;

d$2.$addPatient$($p$5)$;

d$2.$addPatient$($p$6)$;

d$2.$addPatient$($p$7)$;

Doctor d$3=$new Doctor$("$Eman$",50,400)$;

system.addDoctor$($d$3)$;

$//$ Assigning patients to d$3$

d$3.$addPatient$($p$3)$;

d$3.$addPatient$($p$4)$;

d$3.$addPatient$($p$5)$;

d$3.$addPatient$($p$6)$;

d$3.$addPatient$($p$7)$;

$//$ printing total salaries of the doctors

system.printTotalSalaries$()$;

$//$ Printing the name of the most popular doctor.

System.out.print$("$The Most popular Doctor is: $")$;

Doctor mostpopular$=$ system.mostPopularDoctor$()$;

System.out.println$($mostpopular$.$getName$())$;

$\}$

$\}$

The output of main is as follows:

Total salaries are $1400\mathrm{.}0$

The Most popular Doctor is: Eman

Consider the following hospital management system consists of $3$ classes; Doctor, Patient, and

HospitalManagementSystem as illustrated in the class diagram below: