Japan offers a great variety of accommodation including, Ryokan 旅館, private lodging 民宿, and Western style hotels.
Youth hostels are also popular among low budget travelers, and are found all over Japan. You will need to be a member pf a Youth Hostel association, otherwise you may not be able to stay, or you will need to pay extra. Many youth hostels are privately run, but there are some run with government subsidies or even operated by temples. There are various types of Youth Hostels: dormitory only or both dormitory and private rooms: including dinner and breakfast or with just cooking facilities. Some organize tours and other events. Unlike other backpacker hotels, Youth hostels can be strict with regulations such as set checkouts, meals and bath times, and renting regulation sleeping sheets if you do not have one. Youth hostels in Japan used to be much more popular among students in the 1970s that they are now. Many hostels organized meetings for guests at night with activities such as song (with folk guitar), games and dances, providing opportunities to meet others. These "group activities" became unfashionable and gradually many hostels stopped them and at the same time time eased some restrictions such as cleaning pr the method of folding the blankest correctly!