China is over showing and overreacting.
China has a lots of internal problems,etc.
By being aggressive against US,then not maintaining good ties with Japan,already tensed relations with India,China is just going deep into the hole..
China wants to be the boss,but it certainly can't be,when its surrounded by India and Japan.
China has a long long way to go to reach that stage and till then India and Japan will also progress further.
So,the conclusion is,China should stop overreacting and overshowing than what it has and continue its path to development and betterment of its citizens and itself!