// modifier une Mention
 public bool modifierMention(MentionBE mention, MentionBE newMention)
 {
     if (mentionDA.modifier(mention, newMention))
     {
         journalDA.journaliser("suppression de la mention de noteMin : " + mention.noteMin + ", noteMax : " + mention.noteMax + ", mention : " + mention.mention + ". nouvelle noteMin : " + newMention.noteMin + ", nouvelle noteMax : " + newMention.noteMax + ", nouvelle mention : " + newMention.mention);
         return(true);
     }
     return(false);
 }