What are the different dialects in the Japanese language?

Yes

Yes, there are 24 different dialects.

Because of local influences (kind of like accents in other parts of the world, and "area-exclusive words") it is nigh impossible to accurately post all of the dialects of the Chinese language family....

Because they are different countries. They originallY had the same,but then stuff happened and the Japanese changed theirs a bit.Same thing about the Koreans.

Japanese is the only official language in Japan. However, there are many dialects spoken throughout the country.