airline-management-system.md

Designing an Airline Management System

This blog delves into the object-oriented design and implementation of an Airline Management System using Java.

This system will handle various aspects of airline operations including managing flights, passengers, crew, and aircraft.

System Requirements

The Airline Management System should:

1. Flight Management: Create and schedule flights.
2. Passenger Management: Manage passenger bookings and check-ins.
3. Crew Management: Assign crew members to flights.
4. Aircraft Management: Track aircraft and maintenance schedules.

Core Use Cases

1. Scheduling and Managing Flights
2. Booking and Managing Passenger Seats
3. Assigning Crew to Flights
4. Managing Aircraft

UML/Class Diagrams

Key Classes:

• AirlineManagementSystem: Manages the entire system.
• Flight: Represents a flight.
• Passenger: Represents a passenger.
• CrewMember: Represents a flight crew member.
• Aircraft: Represents an aircraft.

Java Implementation

Flight Class

Represents a flight.

import java.util.Date;

public class Flight {
    private String flightNumber;
    private Aircraft aircraft;
    private Date departureTime;
    private String origin;
    private String destination;

    public Flight(String flightNumber, Aircraft aircraft, Date departureTime, String origin, String destination) {
        this.flightNumber = flightNumber;
        this.aircraft = aircraft;
        this.departureTime = departureTime;
        this.origin = origin;
        this.destination = destination;
    }

    // Getters and setters...
}

Passenger Class

Manages passenger information.

public class Passenger {
    private String name;
    private String passportNumber;

    public Passenger(String name, String passportNumber) {
        this.name = name;
        this.passportNumber = passportNumber;
    }

    // Getters and setters...
}

CrewMember Class

Represents a crew member.

public class CrewMember {
    private String name;
    private String employeeId;

    public CrewMember(String name, String employeeId) {
        this.name = name;
        this.employeeId = employeeId;
    }

    // Getters and setters...
}

Aircraft Class

Represents an aircraft.

public class Aircraft {
    private String registrationNumber;
    private String model;
    private int totalSeats;

    public Aircraft(String registrationNumber, String model, int totalSeats) {
        this.registrationNumber = registrationNumber;
        this.model = model;
        this.totalSeats = totalSeats;
    }

    // Getters and setters...
}

AirlineManagementSystem Class

Manages overall airline operations.

import java.util.ArrayList;
import java.util.List;

public class AirlineManagementSystem {
    private List<Flight> flights;
    private List<Passenger> passengers;
    private List<CrewMember> crewMembers;
    private List<Aircraft> aircrafts;

    public AirlineManagementSystem() {
        this.flights = new ArrayList<>();
        this.passengers = new ArrayList<>();
        this.crewMembers = new ArrayList<>();
        this.aircrafts = new ArrayList<>();
    }

    public void addFlight(Flight flight) {
        flights.add(flight);
    }

    public void addPassenger(Passenger passenger) {
        passengers.add(passenger);
    }

    public void addCrewMember(CrewMember crewMember) {
        crewMembers.add(crewMember);
    }

    public void addAircraft(Aircraft aircraft) {
        aircrafts.add(aircraft);
    }

    // Other necessary methods...
}