Contrôle d'accès

• private
• package (défaut)
• protected
• public

transparent

Astre

class Astre {
    private long idNum;
    private String nom= "<pasdenom>";
    private Astre orbite = null;
    private static long nextID = 0;
    Astre(){ 
        idNum = nextID++; 
    }
    Astre(String nomAstre, Astre orbiteAstre) {
        this(); nom = nomAstre;
        orbite = orbiteAstre;
    }

transparent

Suite...

    public String toString(){
        String d = idNum + "(" + nom + ")";
        if (orbite != null)
            d += " autour de " + orbite.toString();
        return d;
    }
    public long getID(){return idNum;}
    // ...
    public boolean enOrbite(Astre autre) {
        return (orbite == autre);
    }
    public boolean enOrbite(long id) {
        return (orbite != null &&
            orbite.idNum == idNum);
    }
}