34. Code that retrieves the first and last elements of the list

• 
  String firstString = codes.removeFirst();
  String lastString = codes.removeLast();
  System.out.println(firstString);
  System.out.println(lastString);
  System.out.println(codes);
  
  

  Resulting output

  
  wuth
  wooz
  [warp, mbdk, citr]