private static int Consultation(int choosenMenu) {
        switch (choosenMenu) {

            case 1:
                for (Iterator<String> it = listLeague.keySet().iterator(); it.hasNext();) {
                    String keyListLeague = it.next();
                    League leagueToDisplay = listLeague.get(keyListLeague);
                    leagueToDisplay.print();
                    System.out.println();
                }
                break;

            case 2:
                System.out.println(" CODE | Equipe | Points | Match joués | Marqué | Concédé | Différence");
                for (Iterator<String> it = listTeam.keySet().iterator(); it.hasNext();) {
                    String keyListTeam = it.next();
                    Team teamToDisplay = listTeam.get(keyListTeam);
                    teamToDisplay.print();
                }
                System.out.println();
                break;

            case 3:
                for (Iterator<String> it = listMatch.keySet().iterator(); it.hasNext();) {
                    String KeyLeague = it.next();
                    Match matchToDisplay = listMatch.get(KeyLeague);
                    matchToDisplay.print();
                }
                System.out.println();
                break;
        }
        return choosenMenu;
    }