Exos

public class Compte {

	private final static Random random = new Random();
	private final int id;
	private long solde = 0;

	public Compte() {
		id = random.nextInt(1000000);
	}

	public long deposer(long i) {
		solde += i;
	}

	public boolean retirer(long i) {
		if(i <= solde) {
			solde -= i;
			return true;
		} else {
			return false;
		}
	}

	public long consulterSolde() {
		return solde;
	}

}

public class Client {

	private Compte compte;
	private String nom;
	private String prenom;

	public Client(String nom, String prenom) {
		this(new Compte(), nom, prenom);
	}

	public Client(Compte compte, String nom, String prenom) {
		this.compte = compte;
		this.nom = nom;
		this.prenom = prenom;
	}

	public Compte getCompte() {
		return compte;
	}

	public void setCompte(Compte compte) {
		this.compte = compte;
	}

	public String getNom() {
		return nom;
	}

	public String getPrenom() {
		return nom;
	}

	public void setNom(String nom) {
		this.nom = nom;
	}

	public void setPrenom(String prenom) {
		this.prenom = prenom;
	}

}

public class Test {

	public static void main(String[] args) {
		Client client = new Client("Jean", "Michel");
		System.out.println("Jean Michel a " + client.getCompte().consulterSolde() + "€");
		client.getCompte().deposer(10);
		System.out.println("Jean Michel a " + client.getCompte().consulterSolde() + "€");
	}

}