Study Japanese in Japan

I'm not only want to learn Japanese, but also want to experience their culture. So I searched and asked people, how can I stay in Japan and learn Japanese efficiently? I got two answers. 

The first one is Japanese language school, that you study in the morning at school for three hours and do whatever you want to do in the afternoon. And most programs in Japanese language school is trying to send you to a good university. This is the way they get reputation. So other than Japanese, they also focus on the test that you need to do in order to go to university. Usually, it's a two-year study, and there is also half year and one-year study.

The second one is Japanese language program in private university. Generally, you study from 9am to 6pm, from Monday to Saturday. And the purpose of this kind of program is mostly for 'training' their perspective student to know more about Japanese and Japan, and prepare for under-graduate or graduate program study in their university. Other than learning Japanese, you can also choose some culture or business courses. And if your Japanese is really good, you could even go to classes like regular students there. Also, you are free to use facility in the university, attend activities, and join in clubs. All of the school I searched, providing this program as a one-year non-degree program.

The second chose is what I want. And I found three schools that I want to go:

1)    Intensive Japanese Language Program (IJLP) in Waseda University

        http://www.waseda.jp/cjl/html/e_study.index.html
        Application Guidebook (PDF file)
        http://www.waseda.jp/cjl/html/dat/download_E/00_guide_in_English.pdf

2)    The Japanese Language Program (JLP) in Keio Univeristy

        http://www.ic.keio.ac.jp/nncenter/en/index.html?url=110.html
        Application Guidebook (PDF file)
        http://www.ic.keio.ac.jp/nncenter/pdf/jlp/10f&11s_guidebook.pdf 

3)    Intensive Japanese Language Program "Bekka" in Doshisha University

        http://www.doshisha.ac.jp/english/education/inbound/bekka.php

Check the website out, if you are interested in them. The deadline to apply April semester is from September to October. And the deadline to apply for September semester is from March to May depends on the school you are applying. I'm preparing to apply the September semester now. And I will share more of my experience later.