private StringBuilder readFile(String nomFichier) { StringBuilder str=new StringBuilder(); try { BufferedReader br = new BufferedReader(new InputStreamReader(new java.io.FileInputStream(nomFichier), "utf8")); String ligne = null; while ((ligne = br.readLine()) != null) { str.append(ligne); } }catch(Exception err) { //JOptionPane.showMessageDialog(null,err); } return str; }