Objectives:

Develop a system to manage patient appointments using a BST$.$

Enable adding, searching, and cancelling appointments.

Ensure efficient appointment scheduling and retrieval.

Functional Requirements:

Appointment Scheduling:

Schedule a new appointment with patient details such as patient ID$,$ name, and appointment time.

Ensure no two appointments can have the exact same time slot.

Appointment Searching:

Search for an appointment using the patient ID or appointment time.

Display appointment details if found.

Appointment Cancellation:

Cancel an existing appointment.

Update the BST accordingly to remove the cancelled appointment.

Viewing Appointments:

Provide functionality to view all appointments for a given day in chronological order.

Technical Specifications:

Backend: Java for core logic handling and BST implementation.

Data Structure: Binary Search Tree to store appointment details, indexed by appointment time.

Suggested Implementation Steps:

Define Data Models: Create a PatientAppointment class representing each appointment with attributes for patient ID$,$ name, and appointment time.

Implement the BST: Develop a custom BST that organizes PatientAppointment objects by appointment time, ensuring efficient lookups and insertions.

Core Functionalities: Implement methods in your BST for adding new appointments, searching for appointments by time or patient ID$,$ and cancelling appointments.

Traversal for Viewing: Implement in$-$order traversal to list appointments in chronological order.

User Interface: Develop a simple console$-$based interface that allows users to schedule, search, cancel, and view appointments.

Example Code Snippets:

public class PatientAppointment $\{$

int patientID;

String patientName;

String appointmentTime; $//$ Simplified for this example

public PatientAppointment$($int patientID, String patientName, String appointmentTime$)\{$

this.patientID $=$ patientID;

this.patientName $=$ patientName;

this.appointmentTime $=$ appointmentTime;

$\}$

$//$ Getters and setters omitted for brevity

$\}$

BST Node Structure:

class AppointmentNode $\{$

PatientAppointment data;

AppointmentNode left, right;

public AppointmentNode$($PatientAppointment data$)\{$

this.data $=$ data;

this.left $=$ null;

this.right $=$ null;

$\}$

$\}$

Adding an Appointment $($simplified logic$)$:

public class AppointmentBST $\{$

private AppointmentNode root;

public AppointmentBST$()\{$

root $=$ null;

$\}$

public void addAppointment$($PatientAppointment appointment$)\{$

root $=$ insertRec$($root$,$ appointment$)$;

$\}$

private AppointmentNode insertRec$($AppointmentNode root, PatientAppointment appointment$)\{$

$//$ Simplified insertion logic based on appointment time

$//$ Remember to handle time comparison and avoid duplicates

$\}$

$//$ Method for in$-$order traversal to display appointments in order omitted for brevity

$\}$