parcelable example

    private Car(Parcel in){
        door = new Integer[MAX_DOORS];

        for(int i = 0; i < MAX_DOORS; i++)
            door[i] = in.readInt();

        tank = in.readInt();
        temp = in.readDouble();

        try {
            start = new JSONObject(in.readString());
            route = new JSONArray(in.readString());
            history = new JSONArray((in.readString()));
        } catch (JSONException e) {e.printStackTrace();}
    }

@Override
    public void writeToParcel(Parcel dest, int flags) {
        for(int i = 0; i < MAX_DOORS; i++)
            dest.writeInt(door[i]);

        dest.writeInt(tank);
        dest.writeDouble(temp);

        dest.writeString(start.toString());
        dest.writeString(route.toString());
        dest.writeString(history.toString());
    }

    public static final Parcelable.Creator<Car> CREATOR = new Parcelable.Creator<Car>() {
        public Car createFromParcel(Parcel in) {
            return new Car(in);
        }

        public Car[] newArray(int size) {
            return new Car[size];
        }
    };