How did the aftermath of the war in Europe differ from the aftermath of the war in Japan?

I will look at the aftermath of the war in Japan and
Germany because, of course, the aftermath of a war is going to be different for the
winners like France and Britain than for the losers like Japan and
Germany.

There are a few major similarities between the
aftermaths in these two countries.  First, they were both devastated by the war and
would have to spend a fairly long time rebuilding.  Second, they were both occupied by
the militaries of one or more of the powers that defeated them in the war.  Third, they
both (at least in the case of West Germany) soon became allies of the powers that
defeated them.

The major difference between the two is that
Germany was divided as a country while Japan remained whole.  A second important
difference is that the US did much more to completely remake the Japanese system of
government than it did in Germany.  The US occupation of Japan was run by one person
(Douglas MacArthur) who undertook the project of giving Japan a new constitution with
provisions like land reform, women's rights, and pacifism that would completely change
Japan.  A smaller difference is that the pre-war "leader" of Japan, Emperor Hirohito,
was retained as a figurehead so there was some greater continuity (at least on a
cosmetic level) than there was in Germany.