Main events scheduled in Japan for Friday, April 1:
-- Bank of Japan to release March Tankan business sentiment survey at 8:50 a.m.
-- Legal age of adulthood in Japan to be lowered from 20 to 18.
-- Changes to Japan's Juvenile Law allowing stricter punishments for 18- and 19-year-old criminal offenders to come into effect.
-- National Police Agency to establish new bureau to counter serious cybercrimes.