bufferedreader 2

//...
 private void demoInput() {
  System.out.println("Insert some text: ");
  try {
   userin = br.readLine();
  } catch (IOException e) {
  System.out.println("Something went wrong!");
  return;
 }

 System.out.println("You said: " + userin);
} while(!userin.equals("quit"));
 }
 //...
}