I need help in improving my Elevator class and it's subclasses code. This is an elevator simulator that uses polymorphism and object-oriented programming to simulate the movement of elevators in a building with multiple types of passengers and elevators.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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I need help in improving my Elevator class and it's subclasses code. This is an elevator simulator that uses polymorphism and object-oriented programming to simulate the movement of elevators in a building with multiple types of passengers and elevators.

There are 4 types of elevators in the system:
StandardElevator: This is the most common type of elevator and has a request percentage of 70%. 
Standard elevators have a maximum capacity of 10 passengers.
ExpressElevator: This type of elevator has a request percentage of 20%. Express elevators have a 
maximum capacity of 8 passengers and are faster than standard elevators.
FreightElevator: This type of elevator has a request percentage of 5%. Freight elevators have a 
maximum capacity of 5 passengers and are designed to transport heavy items.
GlassElevator: This type of elevator has a request percentage of 5%. Glass elevators have a 
maximum capacity of 6 passengers and are designed to transport fragile item

Classes should have this:

Elevator {

Holds variable and ArrayList needed for each elevators

Holds setters and getters

}

Standard, Express, Glass, Freight subclasses {

Each keep track of the amount of Elevators

Contains method of generating passengers

}

My code:

import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Random;
import java.util.Scanner;

public class Simulation {
    SimulatorSettings settings;

    public void initSimulation(SimulatorSettings settings) throws FileNotFoundException {
        Passenger.passengerCounter = 0;
        this.settings = settings;

        File file = new File("settings.txt");
        Scanner scanner = new Scanner(file);

        while (scanner.hasNextLine()) {
            String line = scanner.nextLine();
            if (line.startsWith("floor=")) {
                line = line.replace("floor=", "");
                settings.setNofloors(Integer.parseInt(line));
            }
        }

        ArrayList<Passenger> passengers = new ArrayList<>();

        for (int i = 0; i < 100; i++) {
            // Use the percentage from the file
            passengers.add(new StandardPassenger());
        }
    }
}

public class SimulatorSettings {

    SimulatorSettings(String fileName){

        

    }

    private int nofloors;

 

    public int getNofloors() {

        return nofloors;

    }

 

    public void setNofloors(int nofloors) {

        this.nofloors = nofloors;

    }

}

abstract class Passenger {
    private static int passengerCounter = 0;
    private String passengerID;
    protected int startFloor;
    protected int endFloor;
    protected static Random rand = new Random();

    public Passenger() {
        this.passengerID = String.valueOf(passengerCounter);
        passengerCounter++;
    }

    public abstract boolean requestElevator(SimulatorSettings settings);
}

class StandardPassenger extends Passenger {
    @Override
    public boolean requestElevator(SimulatorSettings settings) {
        this.startFloor = rand.nextInt(settings.getNofloors());
        this.endFloor = rand.nextInt(settings.getNofloors());
        while (this.startFloor == this.endFloor) {
            this.endFloor = rand.nextInt(settings.getNofloors());
        }
        return true;
    }
}

public abstract class Elevator{
    private int currentFloor;
    private int maxCapacity;
    private int passengersCount;

    public Elevator(int maxCapacity) {
        this.currentFloor = 0; // assuming initial floor is 0
        this.maxCapacity = maxCapacity;
        this.passengersCount = 0;
    }

    public abstract void moveUp();

    public abstract void moveDown();

    public abstract void addPassenger(Passenger passenger);

    public abstract void removePassenger(Passenger passenger);
}

class StandardElevator extends Elevator{

    public StandardElevator() {
        super(10); // max capacity is 10 for StandardElevator
    }

    @Override
    public void moveUp() {
        // implementation for moving up for StandardElevator
    }

    @Override
    public void moveDown() {
        // implementation for moving down for StandardElevator
    }

    @Override
    public void addPassenger(Passenger passenger) {
        // implementation for adding passenger to StandardElevator
    }

    @Override
    public void removePassenger(Passenger passenger) {
        // implementation for removing passenger from StandardElevator
    }
}

public class FreightElevator extends Elevator{
     public FreightElevator() {
        super( 4);
    }
}

public class GlassElevator extends Elevator{
    public GlassElevator() {
        super( 8);
    }
}

class ExpressElevator extends Elevator{

    public ExpressElevator() {
        super(8); // max capacity is 8 for ExpressElevator
    }
}

Sample Input File Should look like this:
# Building parameters
floors-30
# Passengers to add to floors
add_passenger
add_passenger
1 6 25 Standard 30
2 2 28 VIP 10
add_passenger 37 15 Freight 20
add_passenger 4 4 20 Glass 15
# Elevator types |
elevator_type StandardElevator 10 40
elevator_type ExpressElevator 8 25
elevator_type FreightElevator 5 20
elevator_type GlassElevator 6 15
# Percentage of passenger requests for each elevator type
request_percentage StandardElevator 70
request_percentage Express Elevator 20
request_percentage FreightElevator 5
request_percentage GlassElevator 5
# Percentage of passenger requests for each passenger type
Standard 70
VIP 10
Freight 15
Glass 5
passenger_request_percentage
passenger_request_percentage
passenger_request_percentage
passenger_request_percentage
# Number of elevators in the system
number_of_elevators 8
# Run simulation for 60 iterations
run_simulation 60
Transcribed Image Text:Sample Input File Should look like this: # Building parameters floors-30 # Passengers to add to floors add_passenger add_passenger 1 6 25 Standard 30 2 2 28 VIP 10 add_passenger 37 15 Freight 20 add_passenger 4 4 20 Glass 15 # Elevator types | elevator_type StandardElevator 10 40 elevator_type ExpressElevator 8 25 elevator_type FreightElevator 5 20 elevator_type GlassElevator 6 15 # Percentage of passenger requests for each elevator type request_percentage StandardElevator 70 request_percentage Express Elevator 20 request_percentage FreightElevator 5 request_percentage GlassElevator 5 # Percentage of passenger requests for each passenger type Standard 70 VIP 10 Freight 15 Glass 5 passenger_request_percentage passenger_request_percentage passenger_request_percentage passenger_request_percentage # Number of elevators in the system number_of_elevators 8 # Run simulation for 60 iterations run_simulation 60
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