import java.util.ArrayList;
import java.io.PrintWriter;
import java.io.File;
import java.util.Scanner;

class Caravan {
    private String name, dest;
    private ArrayList<Car> cars;

    Caravan(Scanner s) {
        // The easy part
        this.cars = new ArrayList<Car>();
        s.nextLine();   // skip the funny line
        this.name = s.nextLine();
        this.dest = s.nextLine();

        try {
            while (true) {
                this.cars.add(new Car(s));
            }
        } catch (NoMoreCarsException e) {
            // all cars hydrated!
        }
    }

    Caravan(String name) {
        this.name = name;
        this.dest = "a quiet place for rest and recreation";
        this.cars = new ArrayList<Car>();
    }

    void setDest(String dest) {
        this.dest = dest;
    }

    int addCar(Car newCar) {
        this.cars.add(newCar);
        return this.cars.size();
    }

    public static void main(String args[]) {

        try {
            Scanner s = new Scanner(new File("fallBreak.caravan"));
            Caravan fallBreak = new Caravan(s);

            System.out.println("my caravan is: " + fallBreak);
        } catch (Exception e) {
            e.printStackTrace();
        }
/*
        Car truck = new Car("Nisan","Ultima",4);
        Car anotherCar = new Car("Mazda","RX-7",2);
        Caravan fallBreak = new Caravan("Fall break");
        fallBreak.addCar(truck);
        fallBreak.addCar(anotherCar);
        fallBreak.addCar(truck);
        fallBreak.addCar(truck);
        fallBreak.addCar(truck);
        fallBreak.addCar(truck);
        fallBreak.addCar(truck);
        System.out.println(fallBreak);

        try {
            PrintWriter will = new PrintWriter(new File("fallBreak.caravan"));
            fallBreak.persist(will);
            will.flush();
            will.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
*/
    }

    void persist(PrintWriter saron) {
        saron.println("Hi this is *cough* a *cough* Caravan");
        saron.println(this.name);
        saron.println(this.dest);
        for (int i=0; i<this.cars.size(); i++) {
            this.cars.get(i).persist(saron); 
        }
        saron.println("--END--");
    }

    public String toString() {

        String return_value = "A caravan named " + this.name + "\n";
        String vehicleLine = "It has the following vehicles:"+ "\n";
        return_value += vehicleLine;
        
        for (int i=0; i<this.cars.size(); i++) {
            return_value += this.cars.get(i) + "\n";
        }

        return return_value;
    }
}