@RequestMapping(
     value = "/remainNumbers/insert/{rollId}/{rollNumber}",
     method = RequestMethod.POST)
 public ResponseEntity<Object> insertRemainNumbers(
     @PathVariable("rollId") Integer rollId, @PathVariable("rollNumber") Integer rollNumber) {
   mySQLRepo.insertRemainNumbers(rollId, rollNumber);
   JSONObject obj = new JSONObject();
   obj.put("notification", "Success");
   obj.put("rollNumber", rollNumber);
   return new ResponseEntity<Object>(obj.toString(), HttpStatus.OK);
 }