public List <Feedback> getMyFeedback(long userId)
 {
     if (UserService.isUserExist(userId) != null)
     {
         return(FeedBackService.getFeedbackByID(userId));
     }
     return(new List <Feedback>());
 }
 public bool handleFeedback(long id, String answer)
 {
     return(FeedBackService.handleFeedback(id, answer));
 }
 public List <Feedback> getAllFeedback()
 {
     return(FeedBackService.getAllFeedback());
 }
 public bool submitFeedback(String content, long userid, String title)
 {
     return(FeedBackService.addFeedback(userid, content, title));
 }