Introduction - If you have any usage issues, please Google them yourself
On the basis of Experiment 1,
An exception class ScoreException is defined, and the exception is thrown when the input student's score is not in the [0100] interval.
An exception class StudentNumberException is defined, and the exception is thrown when the input school number does not satisfy the following condition. Conditions are: 10, first, 2, second, 0, and the rest number 0~9.
The necessary modifications are made to the Student and StudentTest classes to improve the robustness of the program.