Не работает композиция. В чем я ошибся ?

package HW3_3_SP2;
 
/**
 * Created by Valeriu on 16.07.2015.
 */
public class Car {
 
    //состояние машины
    private boolean ready_car;
    //марка машины
    private String car_name;
 
    private  double price;
 
    public Car (boolean ready_car, String car_name, double price){
        this.ready_car = ready_car;
        this.car_name = car_name;
        this.price = price;
    }
 
    //гетеры
    public boolean isReady_car (){
        return ready_car;
    }
 
    public String getCar_name (){
        return car_name;
    }
 
    public double getPrice () {
        return price;
    }
 
    //сетеры
    public void setReady_car (boolean ready_car){
            this.ready_car = ready_car;
    }
 
    public void setCar_name (String car_name){
        this.car_name = car_name;
    }
 
    public void setPrice (double price) {
        this.price = price;
    }
}

package HW3_3_SP2;
 
 
/**
 * Created by Valeriu on 16.07.2015.
 */
public class Driver {
 
    //состояние
    private boolean ready_driver;
    //имя
    private String driver_name;
 
    public Driver (boolean ready_driver, String driver_name){
        this.ready_driver = ready_driver;
        this.driver_name = driver_name;
    }
 
    //гетеры
    public boolean isReady_driver (){
        return ready_driver;
    }
 
    public String getDriver_name (){
        return driver_name;
    }
 
    //сетеры
    public void setReady_driver (boolean ready_driver){
            this.ready_driver = ready_driver;
        }
 
    public void setDriver_name (String driver_name){
        this.driver_name = driver_name;
    }
}

package HW3_3_SP2;
 
/**
 * Created by Valeriu on 16.07.2015.
 */
public class Dispatcher {
 
    private String disp_name;
 
    public Dispatcher(String disp_name){
        this.disp_name = disp_name;
    }
 
    public String getDisp_name (){
        return disp_name;
    }
 
    public void setDisp_name (String disp_name){
        this.disp_name = disp_name;
    }
}

package HW3_3_SP2;
 
/**
 * Created by Valeriu on 16.07.2015.
 */
public class Passage {
 
    {
        idGenerator++;
    }
    private static int idGenerator = 0;
    private int id = idGenerator;
    private String from_driver;
    private String where_driver;
    
    //тут я импортирую мои другие классы
    private Car car;
    private Driver driver;
    private Dispatcher dispatcher;
 
 
    public Passage(String from_driver, String where_driver) {
        this.from_driver = from_driver;
        this.where_driver = where_driver;
    }
 
 
    public int getId() {
        return id;
    }
 
    public String getFrom_driver() {
        return from_driver;
    }
 
    public String getWhere_driver() {
        return where_driver;
    }
    
    //гетер моего диспетчера
    public Dispatcher dispatcher () {
        return dispatcher;
    }
 
    public void setId(int id) {
        this.id = id;
    }
 
    public void setFrom_driver(String from_driver) {
        this.from_driver = from_driver;
    }
 
    public void setWhere_driver(String where_driver) {
        this.where_driver = where_driver;
    }
    
    //сетер моего диспетчера
    public void setDispatcher (Dispatcher dispatcher) {
        this.dispatcher = dispatcher;
    }
 
    //в метод кидаю гетер моего диспетчера
    public void show() {
        System.out.printf("%2s %19s %19s %20s", getId(), getFrom_driver(), getWhere_driver(), dispatcher.getDisp_name());
        }
}

package HW3_3_SP2;
 
/**
 * Created by Valeriu on 16.07.2015.
 */
public class Depot {
    public static void main(String[] args) {
        Passage[] passage = new Passage[5];
        passage[0] = new Passage("New Yourk", "Los Angeles");
        passage[1] = new Passage("Kyiv", "Lviv");
        passage[2] = new Passage("Moskva", "Piter");
        passage[3] = new Passage("Budapesht", "Berlin");
        passage[4] = new Passage("Riga", "Stokgolm");
        Dispatcher [] dispatcher = new Dispatcher[5];
        dispatcher[0] = new Dispatcher("Tanya");
        dispatcher[1] = new Dispatcher("Irina");
        dispatcher[2] = new Dispatcher("Inna");
        dispatcher[3] = new Dispatcher("Natasha");
        dispatcher[4] = new Dispatcher("Polina");
        Car [] car = new Car[5];
        car[0] = new Car(false, "Volvo", 5.65);
        car[1] = new Car(true, "Toyota", 7.65);
        car[2] = new Car(false, "21099" ,8.80);
        car[3] = new Car(true, "BMW X6", 3.33);
        car[4] = new Car(true, "Mazda 3", 2.65);
        Driver [] driver = new Driver[5];
        driver[0] = new Driver(true, "Vasya");
        driver[1] = new Driver(false, "Igor");
        driver[2] = new Driver(false, "Anton");
        driver[3] = new Driver(true, "Valeriu");
        driver[4] = new Driver(true, "Ruslan");
 
 
 
        System.out.println("All passages:");
        System.out.printf("%2s %19s %19s %18s", "Id", "From", "Where", "Disp name");
        for (int i = 0; i < passage.length; i++) {
            System.out.println(" ");
            passage[i].show();
        }
 
    }
}

  System.out.printf("%2s %19s %19s %20s", getId(), getFrom_driver(), getWhere_driver(), dispatcher.getDisp_name());

Dispatcher d = new Dispatcher();
d.getDisp_name ();

public void show(Dispatcher dispatcher){
        System.out.printf("%2s %19s %19s %20s", getId(), getFrom_driver(), getWhere_driver(), dispatcher.getDisp_name());
        }

 Dispatcher [] dispatcher = new Dispatcher[5];
        dispatcher[0] = new Dispatcher("Tanya");
        dispatcher[1] = new Dispatcher("Irina");
        dispatcher[2] = new Dispatcher("Inna");
        dispatcher[3] = new Dispatcher("Natasha");
        dispatcher[4] = new Dispatcher("Polina");

Show()

public void show(Dispatcher dispatcher){
        System.out.printf("%2s %19s %19s %20s", getId(), getFrom_driver(), getWhere_driver(), dispatcher.getDisp_name());
        }

main()

Dispatcher [] dispatcher = new Dispatcher[5];
        dispatcher[0] = new Dispatcher("Tanya");
        dispatcher[1] = new Dispatcher("Irina");
        dispatcher[2] = new Dispatcher("Inna");
        dispatcher[3] = new Dispatcher("Natasha");
        dispatcher[4] = new Dispatcher("Polina");

    public Passage(String from_driver, String where_driver, Car car, Driver driver, Dispatcher dispatcher)