Calling inner classes?

[Rob Brew]

I'm following the oracle training guide as best i can, trying to play with inner classes though and i'm lost. I'm having problems at line 47. how do i call and use innner classes?

Thanks for all your help guys, it means a lot.

vehicle.java

abstract class vehicle
{
	int date_month = 11;
	String colour  = "";
	int price = 0;
	static int id = 0 ;

	public vehicle() {
		colour = "blue";
		id++;
	}

	public vehicle(int p) {
		price = p;
		id++;
	}

	public void set_colour (String c) {
		colour = c;
	}

	String get_colour() {
		return colour;
	}

	void set_price(int p) {
		price = p;
	}

	int get_price() {
		return price;
	}

	static int vehicleId() {
		return id;
	}

	public static void main  (String args[]) {
		car o = new car(1445, "blue");

		System.out.println(o.toString());
		System.out.println(o.get_price());
		System.out.println(o.get_colour());

		taxi t = new taxi();
		System.out.println("Number of cars = " + vehicle.vehicleId());
		System.out.println("Rate "+ (new taxi().getRate(5)));


	}

}

class car extends vehicle {
	boolean in_showroom = false;
	int mileage = 0;
	int price;

	public car() {
		super();
		}
	public car(int p){
		super(p);
		taxi.Speedo speed = new taxi.Speedo();


	}
	public car(int p, String s) {
		super(p);
		super.colour="green";
		System.out.println(super.colour);
}

	void drive() {
		System.out.println("beep beep");
	}

	boolean test_drive() {
		if (in_showroom == true) {
			System.out.println("nice driving");
			return true;
			} else {
			return false;
		}
	}
}

taxi.java

public class taxi extends vehicle implements cab {
	boolean booked;
	int month_serviced;
	int rate = 5;

    public taxi () {
		booked = false;
		month_serviced=4;
		this.book();
		System.out.println("Taxi booked");
		};

	public taxi (int r) {
		 rate = r;
		System.out.println("booked at " + rate + "per hour");
	}

	public int getRate (int  hours)
	{
		return (rate * hours);
	}


	public boolean book() {
		if (booked == false) {
			booked = true;
			System.out.println("where to governor?");
			return booked;
		} else {
			System.out.println("already booked");
			return booked;
		}
	}

	public void service() {
		System.out.println("MOT passed");
	}

	 class Speedo {
		public int speed;
		public int getSpeed() {
			return speed;
	}

}


}

cab.java

 public interface cab {
	public boolean book();
	public void service();
}

[marc weber]

Rob Brew wrote:... I'm having problems at line 47. how do i call and use innner classes? ...

I think your problem is actually at line 64.

An instance of an inner class (Speedo) always needs to be associated with an instance of the enclosing class (taxi). This means you need an instance of taxi before you can create an instance of Speedo. So instead of just...

taxi.Speedo speed = taxi.new Speedo();

...create a new instance of taxi first, then use that instance to create a new Speedo...

taxi.Speedo speed = new taxi().new Speedo();

Edit: Note that if you already have an instance of the enclosing class, then you could simply use that. For example...

taxi myTaxi = new taxi();
taxi.Speedo mySpeedo = myTaxi.new Speedo();