public class Periode{

	private int nbrjour;
	private Date n;
	private Date m;

	public Periode(Date a, Date b){
		this.n=a;
		this.m=b;
		this.nbrjour=((b.annee-a.annee)*365)+((b.mois-a.mois)*31)+(b.jour-a.jour);
	}

	public String toString(){
		return System.out.println("L'intervalle entre "+this.n.toString+" et "+this.m.toString+" est de "+this.nbrjour+"jour(s)");
	}

	public void prolongePeriode(){
		this.m=this.m.lendemain;
		this.nbrjour++;
	}

	public int intervalle(){
		return this.nbrjour;
	}

	public static void main(String[] args) {
		Date d = new Date();
		Date l = d.lendemain();
		Periode p = new Periode(d,l);
		Periode i = new Periode(d,l);
		i.prolongePeriode();
		i.prolongePeriode();
		int n = p.intervalle();
		p.toString();
		i.toString();
		System.out.println(p);
		System.out.println(i);
		System.out.println(n);
	}
}