package com.baeldung.adapter; public class MovableAdapterImpl implements MovableAdapter { private Movable luxuryCars; public MovableAdapterImpl(Movable luxuryCars) { this.luxuryCars = luxuryCars; } @Override public double getSpeed() { double mph = luxuryCars.getSpeed(); return convertMPHtoKMPH(mph); } private double convertMPHtoKMPH(double mph) { return mph * 1.60934; } }