import java.io.PrintWriter;
import java.io.FileWriter;
import java.io.FileReader;
import java.util.Scanner;

public class Tester {
    public static void main(String args[]) {

        Car oldoldoldcar = new Car("Lincoln","Continental");
        Car heap = new Car("Cherokee","Jeep");
        oldoldoldcar.year = 1960;
        Car aspirational = new Car("Mazda","RX-7");
        try {
            heap.drive(10);
            aspirational.drive(220);
            oldoldoldcar.drive(210);
        } catch (Exception e) {
            e.printStackTrace();
        }
        
        Caravan caravan = new Caravan();
        caravan.add(oldoldoldcar);
        caravan.add(heap);
        caravan.add(aspirational);
        System.out.println(caravan);
    }

}