public class B {
	private D d;
	private double value;
	public B(D d) {
		this.d = d;
	}
    public void updateValue(double lng) {
        this.value = lng;
    }
	public double getValue() {
		return this.value;
	}
	public void updateGPS(double lat2, double long2) {
		this.value = long2;
		this.d.updateLongitude(this.value);
	}
}