private boolean changePasswordForAdmin(String pass) {
        Properties props = new Properties();
        InputStream is = Login.class.getResourceAsStream("/config.properties");
        try {
            props.load(is);
            is.close();
        } catch (IOException e) {
            System.out.println("password change failed");
            e.printStackTrace();
            return false;
        }

        FileOutputStream out;
        try {
            out = new FileOutputStream("/config.properties");
            props.setProperty(passwordProperyKey, pass);
            props.store(out, null);
            out.close();
            System.out.println("password changed");
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            System.out.println("password change failed");
            return false;
        } catch (IOException e) {
            e.printStackTrace();
            System.out.println("password change failed");
            return false;
        }

        return true;
    }