/** @param user - user added/edited */ public static void writeUsers(String user) { try { userManager.write(); } catch (IOException e) { } String[] usernames = concatenateArrays(dropdown_, UserManager.getNames().toArray(new String[] {})); users.removeAllItems(); for (int i = 0; i < usernames.length; i++) { users.addItem(usernames[i]); if (usernames[i].equals(user)) { users.setSelectedIndex(i); } } }