China’s 2013 Military Budget went up 10.7% $114.3 Billion and is spending much more on defense than it discloses. In 2012, the DoD estimates China spent between $135 billion and $215 billion on military-related expenditures.
China buying up useless hardware and a second-hand Russian aircraft carrier (which is actually good for nothing) is not going to help them. Japan is having the best technology. China won't be able to match it even with a 10x budget.
You obviously seem to be stuck with that "useless hardware and Russian aircraft carrier". Hey, wake up already, China is on the Moon now with their "inferior" technology, not Japan with its "best" technology. Why are you so deep in denial? One warhead blown over Tokyo would send all the Japanese tech superiority to dust and ashes...