follow these steps and answer the questions(except question3) ? I also want to see class changes. I

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follow these steps and answer the questions(except question3) ? I also want to see class changes. I will attach all classes that you need. Thank you!

EvilAddDriver.java

package com.sait.itsc315.application;   import java.io.*;   import com.sait.itsc315.managers.VehicleManagementSystem; import com.sait.itsc315.problemdomain.Vehicle;     public class EvilAddDriver {   /**  * Entry point for program.  * @param args  * @throws IOException  */ public static void main(String[] args) throws IOException { VehicleManagementSystem vms = new VehicleManagementSystem();  Vehicle evil = new Vehicle(-999, "Evil", 1, "ABCD1234", 1.50); vms.getVehicles().add(evil);  vms.save(); }   }

GoodAddDriver.java

package com.sait.itsc315.application;   import java.io.*;   import com.sait.itsc315.managers.VehicleManagementSystem; import com.sait.itsc315.problemdomain.Vehicle;     public class GoodAddDriver {   /**  * Entry point for program.  * @param args  * @throws IOException  */ public static void main(String[] args) throws IOException { VehicleManagementSystem vms = new VehicleManagementSystem();  vms.addVehicle(1234, "Toyota Camry", 2015, "1GCRCREC5FZ145755", 9995);  vms.save(); }   }

VehicleManagementSystem.java

package com.sait.itsc315.managers;   import java.io.*; import java.util.*;   import com.sait.itsc315.problemdomain.*;     public class VehicleManagementSystem { public static final String TEXT_FILE = "res/vehicles.csv"; public static final String BINARY_FILE = "res/vehicles.bin";   private ArrayList vehicles;   /**  * Constructor for Vehicle Management System.  * @throws IOException  */ public VehicleManagementSystem() throws IOException { this.vehicles = new ArrayList<>();  try { this.loadFromBinary(); } catch (IOException e) { this.loadFromText(); } }   /**  * Loads vehicles from file.  * @throws IOException  */ private void loadFromText() throws IOException { BufferedReader br = new BufferedReader(new FileReader(TEXT_FILE));  String line = br.readLine();  while (line != null) { String[] parts = line.split(",");  int id = Integer.parseInt(parts[0]); String name = parts[1]; int year = Integer.parseInt(parts[2]); String vin = parts[3]; double price = Double.parseDouble(parts[4]);  Vehicle vehicle = new Vehicle(id, name, year, vin, price); this.vehicles.add(vehicle);  line = br.readLine(); }  br.close(); }   /**  * Loads vehicles from the binary file (if it exists).  * @throws IOException  */ private void loadFromBinary() throws IOException { RandomAccessFile raf = new RandomAccessFile(new File(BINARY_FILE), "rw");  int length = raf.readInt();  for (int i = 0; i < length; i++) { int id = raf.readInt(); String name = raf.readUTF(); int year = raf.readInt(); String vin = raf.readUTF(); double price = raf.readDouble();  Vehicle vehicle = new Vehicle(id, name, year, vin, price); this.vehicles.add(vehicle); }  raf.close(); }   /**  * Saves vehicles to binary file.  * @throws IOException  */ public void save() throws IOException { RandomAccessFile raf = new RandomAccessFile(new File(BINARY_FILE), "rw");  raf.writeInt(this.vehicles.size());  for (Vehicle vehicle : this.vehicles) { raf.writeInt(vehicle.getId()); raf.writeUTF(vehicle.getName()); raf.writeInt(vehicle.getYear()); raf.writeUTF(vehicle.getVin()); raf.writeDouble(vehicle.getPrice()); }  raf.close(); }   /**  * Adds a vehicle.  * @param id ID  * @param name Name  * @param year Year  * @param vin VIN  * @param price Price  */ public void addVehicle(int id, String name, int year, String vin, double price) { Vehicle vehicle = new Vehicle(id, name, year, vin, price); this.vehicles.add(vehicle); }   /**  * Finds a vehicle with an ID.  * @param id Vehicle ID.  * @return Found vehicle or null if not found.  */ public Vehicle findById(int id) { Vehicle found = null;  for (Vehicle vehicle : vehicles) { if (vehicle.getId() == id) { found = vehicle; break; } }  return found; }   /**  * Displays a vehicles information.  * @param id ID of vehicle.  * @param brand Brand  * @param model Model  * @param year Year  * @param price Price  */ public void display(int id, String name, int year, String vin, double price) { System.out.printf("ID:\t%d\n", id); System.out.printf("Name:\t%s\n", name); System.out.printf("Year:\t%d\n", year); System.out.printf("VIN:\t%s\n", vin); System.out.printf("Price:\t%.2f\n", price); }   /**  * Gets the vehicles  * @return List of vehicles.  */ public ArrayList getVehicles() { return this.vehicles; } }

SearchDriver.java

package com.sait.itsc315.application;   import java.util.*;   import com.sait.itsc315.managers.*; import com.sait.itsc315.problemdomain.*;   import java.io.*;     public class SearchDriver {   /**  * Entry point for program.  * @param args  * @throws IOException  */ public static void main(String[] args) throws IOException { Scanner in = new Scanner(System.in);  VehicleManagementSystem vms = new VehicleManagementSystem();  System.out.print("Enter the ID of the vehicle: "); int idToFind = in.nextInt();  System.out.println();  Vehicle vehicle = vms.findById(idToFind);  if (vehicle == null) { System.out.println("No vehicle with that ID was found."); return; }  System.out.println("Found vehicle information:");  /***** Start modifying code here ******/ int id = vehicle.getId(); String name = vehicle.getName(); int year = vehicle.getYear(); String vin = vehicle.getVin(); double price = vehicle.getPrice();         // Check if the vehicle is a Toyota and create a Toyota object        if (id >= 200 && id <= 299) {            Toyota toyota = new Toyota(vehicle);            price = toyota.getPrice();        } /***** End modifying code here ******/  vms.display(id, name, year, vin, price);  vms.save();  in.close(); }   }

Vehicle.java

package com.sait.itsc315.problemdomain;     public final class Vehicle { private final int id; private final String name; private final int year; private final String vin; private final double price;   /**  * Constructor for Vehicle.  * @param id ID  * @param brand Brand of vehicle.  * @param model Model of vehicle.  * @param year Year vehicle was made.  * @param price Price of vehicle.  */ public Vehicle(int id, String name, int year, String vin, double price) { this.id = id; this.name = name; this.year = year; this.vin = vin; this.price = price; }   /**  * @return the id  */ public int getId() { return id; }   /**  * @param id the id to set  * @throws UnsupportedOperationException  */ public void setId(int id) { throw new UnsupportedOperationException("Cannot modify immutable object."); }   /**  * @return the name  */ public String getName() { return name; }   /**  * @param brand the name to set  * @throws UnsupportedOperationException  */ public void setName(String name) { throw new UnsupportedOperationException("Cannot modify immutable object."); }   /**  * @return the year  */ public int getYear() { return year; }   /**  * @param year the year to set  * @throws UnsupportedOperationException  */ public void setYear(int year) { throw new UnsupportedOperationException("Cannot modify immutable object."); }   /**  * @return the vin  */ public String getVin() { return vin; }   /**  * @param vin the vin to set  * @throws UnsupportedOperationException  */ public void setVin(String vin) { throw new UnsupportedOperationException("Cannot modify immutable object."); }   /**  * @return the price  */ public double getPrice() { return price; }   /**  * @param price the price to set  * @throws UnsupportedOperationException  */ public void setPrice(double price) { throw new UnsupportedOperationException("Cannot modify immutable object."); } }

res/vehicles.csv

143	BMW F10	2019	9FC1CJ130AJGUM9L1	14788
527	Honda That S	2013	BDST4Z374A5W5NE1D	8766
522	Honda Logo	2012	HCDK3U417ALDJM247	8671
488	Chevrolet Explorer	2016	ZP4RUS0C1ARAFYPZJ	13235
497	Chevrolet Trax	2004	YVP9WMN00AXXTA84Y	2510
353	Ford Fairlane	2015	0BJGPE5J1AEF8A5X3	14208
381	Ford F-450	2020	71GKXAZC6A9MT08S5	12605
278	Toyota Brevis	2019	X78PCY983A9L0R9D7	12572
291	Toyota Tercel	2015	CM4LUZY38AB7LDXE7	13268
127	BMW 128	2008	BZH6S3851A84932EM	1833
171	BMW 528	2018	81W5XX948A4F0NW28	12593
586	Honda CR-V	2003	EEE1CMR94ALM5ZBVE	2936