Thread: Parking Ticket Simulator Help (Almost done, few errors)

Hello. I am fairly new to programming, and this new assignment has pushed me to my limits. I am almost done with it, I think, but I am doing something incorrect because I can't seem to get rid of all of my errors at the same time. Any help is appreciated. Thank you very much:

Design a set of classes that work together to simulate a police officer issuing a parking ticket. The classes to design are:

- ParkedCar class: simulates a parked car
- This class knows the car's make, model, color, license number, and the number of minutes that the car has been parked.

- ParkingMeter Class: simulates a parking meter.
- This classes only responsibility is to know the number of minutes of parking time that has been purchased.

-ParkingTicket class: Simulates a parking ticket
Responsibilities:
- To report make, model, color, and license number of the illegally parked car.
- To report the amount of the fine which is $25 dollars for the first hour or part of the hour that the car is illegally parked, plus $10 for every additional hour or part of an hour that the car is parked.
- To report the name and badge number of the police officer issuing the ticket.
-PoliceOfficer class: Simulates a police officer
Responsibilities:
- To know the police officer's name and badge number
- To examine a parked car object and a ParkingMeter object and determine whether the car's time has expired.
- To issue a parking ticket (generate a parkingTicket object) if the car's time has expired.

Write a program to test the classes as well.

Here is what I have for my classes:

public class ParkedCar {
 
	private String make;
	private String model;
	private String color;
	private String license;
	private static int minutes;
 
	public ParkedCar() {
 
	}
 
	public ParkedCar(String carMake, String carModel, String carColor, String carLicense, int carMinutes) {
 
		make = carMake;
		model = carModel;
		color = carColor;
		license = carLicense;
		minutes = carMinutes;
	}
 
	public String getMake() {
		return make;
	}
	public String getModel() {
		return model;
	}
	public String getColor() {
		return color;
	}
	public String getLicense() {
		return license;
	}
	public static int getMinutes() {
		return minutes;
	}
 
	public String toString() {
 
		String string = "Make: " + make
				+ "\nModel: " + model
				+ "\nColor: " + color
				+ "\nLicense Plate: " + license;
			return string;
 
	}
 
 
}

public class ParkingMeter {
 
	private static int minPurchased;
 
	public ParkingMeter() {
 
	}
 
	public ParkingMeter(int carMinPurchased) {
 
		minPurchased = carMinPurchased;
	}
 
	public static int getMinPurchased() {
		return minPurchased;
	}
 
	public String toString() {
		String string = "Minutes Purchased: " + minPurchased;
		return string;
	}
}

public class ParkingTicket {
 
		private ParkedCar vehicle;
		private PoliceOfficer copster;
		private double fine;
		private int minutes;
		private double firstFine = 25;
		private double moreFine = 10;
 
		public ParkingTicket(ParkedCar car, PoliceOfficer cop, double guyFine, int mins) {
 
			vehicle = car;
			copster = cop;
			fine = guyFine;
			minutes = mins;
		}
 
		public void getTotalFine() {
			int  time = ParkedCar.getMinutes() - ParkingMeter.getMinPurchased();
 
			if(time <= 60) {
				fine = firstFine;
			}
			else {
				fine = firstFine + moreFine * (time / 60);
			}
		}
 
		public double getFirstFine() {
			return firstFine;
		}
		public double getMoreFine() {
			return moreFine;
		}
		public ParkedCar getVehicle() {
			return vehicle;
		}
		public PoliceOfficer getCopster() {
			return copster;
		}
		public int getMinutes() {
			return minutes;
		}
		public double getFine() {
			return fine;
		}
 
 
	}

public class PoliceOfficer {
 
	private String name;
	private int badge;
	private static double ticket;
 
	public PoliceOfficer() {
 
	}
 
	public PoliceOfficer(String poName, int poBadge) {
 
		name = poName;
		badge = poBadge;
	}
 
	public String getName() {
		return name;
	}
	public int getBadge() {
		return badge;
	}
 
	static ParkingTicket search(ParkedCar car, ParkingMeter meter) {
 
		int  time = ParkedCar.getMinutes() - ParkingMeter.getMinPurchased();
 
		if(ParkedCar.getMinutes() > ParkingMeter.getMinPurchased()) {
			if(time <= 60) {
				ticket = 25;
 
			}
 
		else {
			ticket = 25 + (10 * (time/60));
		}
		}
		return ticket;
 
	}
 
}

public class CarTest {
 
	public static void main(String[] args) {
 
		ParkedCar car = new ParkedCar("Honda", "Accord", "Black", "452-BTS", 78);
 
		ParkingMeter meter = new ParkingMeter(60);
 
		PoliceOfficer john = new PoliceOfficer("John Doe", 1337);
 
		ParkingTicket ticket = PoliceOfficer.search(car, meter);
 
		if(ticket != null) {
			System.out.println(ticket);
		}
		else {
			System.out.println("Car is not doing anything wrong!");
		}
	}
 
}

In this code, the only problem is "return ticket;" in the PoliceOfficer class. However, even if I got rid of that, I still don't know if my code would work... . Any help is appreciated. Thank you so much in advanced.

-TitanVex

Originally Posted by Junky

I'm not sure what you want us to do. If you want us to test your code and see if it adheres to the specs then that is unlikely to happen. If you have a specific question then ask it and get a specific answer. If you are getting error messages then post the exact messages and indicate on which line they occur (show the line don't just say line number X)

I get an error in the PoliceOfficer class. It would be in this part:

	static ParkingTicket search(ParkedCar car, ParkingMeter meter) {
 
		int  time = ParkedCar.getMinutes() - ParkingMeter.getMinPurchased();
 
		if(ParkedCar.getMinutes() > ParkingMeter.getMinPurchased()) {
			if(time <= 60) {
				ticket = 25;
 
			}
 
		else {
			ticket = 25 + (10 * (time/60));
		}
		}
		return ticket;
 
	}

The word 'ticket' is red underlined and I don't know how to fix that. I have tried java's default methods, such as changing the method return type to double and changing type of 'ticket.' By no means do I want you guys to test to see if my code works. I just want to make it run so that I can make the necessary adjustments. Thanks for you help thus far.
-TitanVex

Originally Posted by Junky

In future you need to copy and paste the exact error message. In your case ticket is a double but the method says it should return a ParkingTicket.

Allrighty. Will do. Thanks.

i got the same problem with the PoliceOfiicer class as same as the problem u got.
could u tell me how to solve the problem? its call incompatible types
found : int about ticket

thank u so much!!!!