public LectureFichier(String path) {
		try {
			FileReader reader = new FileReader(path);
		    try(BufferedReader br = new BufferedReader(reader)) {
		        StringBuilder sb = new StringBuilder();
		        String line = br.readLine();

		        while (line != null) {
		            sb.append(line);
		            line = br.readLine();
		        }
		        //this.text = sb.toString().replaceAll("\\.","").replaceAll("\\s","").toLowerCase() ; efface les espaces
		        this.text = sb.toString().toLowerCase() ;
		    } catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	    	
		this.longueur_texte = text.length();
	}