public String lire (String path) 
    {
            BufferedReader lect ;
            String tmp = "";
            try
            {
                    lect = new BufferedReader(new FileReader(path)) ;
                    while (lect.ready()==true) 
                    {
                            tmp += lect.readLine()+"\n"; 
                    }
                    lect.close();
            }//try
            catch (NullPointerException a)
            {
                    System.out.println("Erreur : pointeur null");
            }
            catch (IOException a) 
            {
                    System.out.println("Problème d'IO  en lecture");
            }
            return tmp;
    }