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studentRepository.deleteById(student.getId());
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Student retrievedStudent =
studentRepository.findById("Eng2015001").get();
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List<Student> students = new ArrayList<>();
studentRepository.findAll().forEach(students::add);
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Student engStudent = new Student(
"Eng2015001", "John Doe", Student.Gender.MALE, 1);
Student medStudent = new Student(
"Med2015001", "Gareth Houston", Student.Gender.MALE, 2);
studentRepository.save(engStudent);
studentRepository.save(medStudent);