Révision du cours

DRY : Do not Repeat Yourself
DOT : Do One Thing
KISS : Keep It Simple, Stupid
SRP : Single Responsibility Principle

Public, private, final

bodyColor : publique et immutable
currentSpeed : privée et mutable
gasolineLevel : privée et mutable
licensePlate : publique et immutable
turnSignalState : privée et mutable (avec l’ajout d’un accesseur publique)

Flacons

public class Bottle {
    public final double capacity;
    private double totalVolume;
    private double concentration;
    public final String label;

    public Bottle(double capacity,
                  double totalVolume,
                  double concentration,
                  String label) {
        this.capacity = capacity;
        this.totalVolume = totalVolume;
        this.concentration = concentration;
        this.label = label;
    }

    private double getSyrupVolume(){
        return concentration * totalVolume;
    }

    void pourLiquid(double volume, double concentration){
        double newSyrupVolume = getSyrupVolume()
                                + concentration*volume;
        this.totalVolume += volume;
        this.concentration = newSyrupVolume/totalVolume;
    }

    public void pourSyrup(double volume){
        pourLiquid(volume,1);
    }

    public void pourWater(double volume){
        pourLiquid(volume, 0);
    }

    public void transvase(Bottle pouringBottle, double volume){
        volume = pouringBottle.drink(volume);
        this.pourLiquid(volume, pouringBottle.concentration);

    }

    public double drink(double volume){
        volume = Math.min(volume, this.totalVolume);
        this.totalVolume -= volume;
        return volume;
    }

    public String toString(){
        return "Étiquette : " + this.label + " Volume : "
                + this.totalVolume + " Concentration "+
                this.concentration;
    }

}