Question

Problem 3 - The Doctor Registry (20 points) In this last problem, your task is to create a class that is going to represent a provincial registry of doctors called Doctor Registry. The UML diagram is provided below: DoctorRegistry - province : String - doctors : Doctor[ ] Doctor + Doctor Registry( maxDoctors : int, province : String) + register(doctor: Doctor): bool + de Register(registryNumber : String): bool + getDoctorList(): Doctor[] Use the maxDoctors parameter to initialize the size of the doctors array. Method details: The register method will add a doctor to the registry list only if the doctor is not already in the list (Hint: you can use the equals method from the Doctor class to see if the passed in doctor object is the same as a doctor object stored in the array). This method will return true if the doctor was added successfully or false if the doctor was already on the list. The method should add a shallow copy of the doctor.. The deRegister method will remove the given doctor from the doctors list (by setting the array position to null) using the registryNumber of the doctor to search. The method will return true if the doctor was removed from the list, or false if the doctor was not present on the list. (Hint: you should iterate over the list to find the doctor). Remember to copy or solution code from Q2 (both doctor subclasses) into Q3. Do it before writing the Doctor Registry class

Assume Doctor Class is Following:

class Doctor
{
private String fullName;
private String registryNumber;
private String specialty;
  
public Doctor(String fullName, String registryNumber, String specialty)
{
this.fullName = fullName;
this.registryNumber = registryNumber;
this.specialty = specialty;
}
  
public String getName()
{
return fullName;
}
  
public String getRegistryNumber()
{
return registryNumber;
}
  
public String getSpecialty()
{
return specialty;
}
  
public void setName(String fullName)
{
this.fullName = fullName;
}
  
public boolean equals(Doctor other)
{
if(registryNumber == other.registryNumber)
return true;
else
return false;
}
  
public String toString()
{
return "Dr. "+fullName+", Specialty: "+specialty;
}
  
}

Please answer in JAVA

Answer 1

DoctorRegistry Class Code:

package docterregistry;

public class DoctorRegistry {
        // Attributes
        private String province;
        private Doctor[] doctors;

        // to hold how many doctors in list
        private int index = 0;

        /*
         * Constructor that creates the DoctorRegistry object with maximum doctors in
         * list to maxDoctors and with given province
         */
        public DoctorRegistry(int maxDoctors, String province) {
                this.doctors = new Doctor[maxDoctors];
                this.province = province;
        }

        // Method to register doctor
        public boolean register(Doctor doctor) {
                // if already maximum doctors in list do not add
                if (index == doctors.length) {
                        return false;
                }
                // to hold doctor already in list or not
                boolean found = false;

                // checking for given doctor present in list
                // Look for each doctor in list
                for (int i = 0; i < index; i++) {
                        // extract current doctor
                        Doctor d = doctors[i];

                        // if current doctor is given doctor
                        if (d.equals(doctor)) {
                                // mark as true(found)
                                found = true;
                                // stop searching
                                break;
                        }
                }

                // if already in list do not add and return false
                if (found) {
                        return false;
                }
                // else add doctor in next empty position and return true
                else {
                        doctors[index++] = doctor;
                        return true;
                }
        }

        // Method to de-register doctor by taking registry number
        public boolean deRegister(String registryNumber) {
                // Look for all doctors
                for (int i = 0; i < index; i++) {
                        // if current doctor registry number is same as provided registry number
                        if (doctors[i].getRegistryNumber().equalsIgnoreCase(registryNumber)) {
                                // set the current position as null and return true
                                doctors[i] = null;
                                return true;
                        }
                }
                return false;
        }

        // Method to return registered doctors list
        public Doctor[] getDoctorList() {
                // create a new Doctor array to hold all registered Doctors
                Doctor[] list = new Doctor[index];

                // Look for all Doctors
                for (int i = 0; i < index; i++) {
                        list[i]=doctors[i];
                }

                // return the list
                return list;
        }
}

Image Of Code:

GEEF BO Oval } 1 package docterregistry; 2 public class Doctor Registry { 4 // Attributes 5 private String province; 6 private Doctor[] doctors; 7 8 // to hold how many doctors in list 9 private int index = 0; 10 110 12 * Constructor that creates the Doctor Registry object with maximum doctors in 13 * list to maxDoctors and with given province 14 */ 150 public Doctor Registry(int maxDoctors, String province) { 16 this.doctors = new Doctor[maxDoctors]; 17 this.province = province; 18 19 20 // Method to register doctor 210 public boolean register (Doctor doctor) { 22 // if already maximum doctors in list do not add 23 if (index == doctors.Length) { 24 return false; 25 } 26 11 to hold doctor already in list or not 27 boolean found = false; 28 29 // checking for given doctor present in list 30 // Look for each doctor in list 31 for (int i = 0; i < index; i++) { 32 // extract current doctor 33 Doctor d = doctors[i]; 34 35 // if current doctor is given doctor 36 if (d.equals(doctor)) { 37 // mark as true(found) 38 found = true; 39 // stop searching 40 break; 41 } $42 43 44 // if already in list do not add and return false 45 if (found) { $46 return false; 47 48 // else add doctor in next empty position and return true } }

// else add doctor in next empty position and return true else { doctors[index++] = doctor; return true; ܢܟ } // Method to de-register doctor by taking registry number public boolean deRegister (String registryNumber) { // Look for all doctors for (int i = 0; i < index; i++) { // if current doctor registry number is same as provided registry number if (doctors[i].getRegistryNumber().equals IgnoreCase(registryNumber)) { // set the current position as null and return true doctors[i] = null; return true; } $47 48 49 250 51 52 53 54 55 560 57 58 59 60 61 62 63 64 65 66 67 68 69 700 71 72 73 74 75 76 77 78 79 80 81 82 } 83 } return false; } // Method to return registered doctors list public Doctor[] getDoctorList() { // create a new Doctor array to hold all registered Doctors Doctor list = new Doctor[index]; // Look for all Doctors for (int i = 0; i < index; i++) { list[i]=doctors[i]; } // return the list return list; }