What were the main difference between the capital cities citiesof cities of japan cities of japan and china

( The different Between china and japan)---For centuries no foreigners were allowed on Japanese soil  and yet the Japanese undertook several attempts at creating an empire, in korea, china and Southeast Asia . The chinese Remained focused  on areas where there already a large chinese population. ( The japanese and Chinese hated each other)

You love them i guess

Sorry i don’t know the answer myself