String FILENAME = "UserFile.txt";
				final String UserName = Enom + "_" + Eprenom;
				FileOutputStream fos;
				try {
					fos = openFileOutput(FILENAME,
							Context.MODE_WORLD_READABLE);
					OutputStreamWriter osw = new OutputStreamWriter(fos);
					osw.write(UserName);
					osw.flush();
					osw.close();
				} catch (FileNotFoundException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}