return "prettyPrint"+obj.toString();
return obj.toString();
   private String prettyPrint (Object obj){       StringBuffer sb = new StringBuffer();       if (obj instanceof String[]){           Object[] objects = (Object[]) obj;           int length = objects.length;           for (int i=0; i<length; i++ ){              sb.append(objects[i]);              sb.append("\n");           }       } else {           return "prettyPrint"+obj.toString();       }       return sb.toString();   }