2. Public student dormitories (halls) living outside and low-rent housing provided by the government. The former has good conditions, the latter is spacious and the rent is very cheap. Only the number of places is limited, and few people can apply.
3. Rental housing provided by individuals living outside and real estate agents. If it is in a high-consumption area such as Tokyo, it is normal for two people to share a room because the rent is very expensive. Most other areas live alone.