The self-study exam is generally not limited to a few years, and the qualified scores in some areas are valid for 8 years.
There is no tuition fee, and the examination fee is 30-50 for general theory courses, 60- 150 for practical courses and about 600 for graduation thesis.
No class, I don't know the place.
After the self-study exam, you will get a college diploma, and then you will be a graduate student.
You can study abroad.
The self-taught graduation certificate is recognized by the state.
Note: If you study in Nanjing, you can take the self-study exam directly in Nanjing.
There are self-study examination offices all over the country to see if there is an undergraduate course in Japanese in Nanjing.