Code-Reengineering-Case-Study.java

class Engine {
//…
  private double fuel;
  private double CV;

  public Engine(double fuel, double CV) {
    this.fuel = fuel;
    this.CV = CV;
  }
  
  public double getFuel() {
    return fuel;
  }
  
  public void setFuel(double fuel) {
    this.fuel = fuel;
  }
  
  public double getCV() {
    return CV;
  }
  
  public void setCV(double cv) {
    this.CV = cv;
  }
}

class Car {
  // ...
  private String brand;
  private String model;
  private Engine engine;
  
  public Car(String brand, String model, double fuel, double CV) {
    this.brand = brand;
    this.model = model;
    this.engine = new Engine(fuel, CV);
  }

  public String getName() {
    return brand + " " + model + " (" + engine.getCV() + "CV)";
  }
  
  public String getModel() {
    return model;
  }
  
  public void setModel(String model) {
    this.model = model;
  }
  
  public String getBrand() {
    return brand;
  }
  
  public void setBrand(String brand) {
    this.brand = brand;
  }
  
  public double getFuel() {
    return engine.getFuel();
  }
  
  public void setFuel(double fuel) {
    engine.setFuel(fuel);
  }
  
  public double getCV() {
    return engine.getCV();
  }
  
  public void setCV(double cv) {
    engine.setCV(cv);
  }
}