public Student createStudent() {
   Student s = new Student();
   s.setGender(new Byte("1"));
   s.setName("John");
   s.setClass_("12");
   s.setRollnumber(007);
   studentDAO.addStudent(s);
   return s;
 }
  public static void main(String[] args) {
    DbOperations dbOperations = new DbOperations();
    Student createStudent = dbOperations.createStudent();

    List<Student> studentList = dbOperations.getStudentList();
    if (studentList != null) {
      for (Student student : studentList) {
        System.out.println("Student Name : " + student.getName());
      }
    }
    dbOperations.updateStudent(createStudent.getId());
    Student student = dbOperations.getStudent(createStudent.getId());
    if (student != null) {
      System.out.println("Student Details After Updation : " + student.getName());
    }

    dbOperations.deleteStudent(createStudent.getId());
  }
 public void updateStudent(Integer id) {
   Student student = studentDAO.findStudentById(id);
   student.setName("online tutorials point");
   studentDAO.updateStudent(student);
   System.out.println("Student Updated Success");
 }