In java 8, all the commands of java 7 work or not.

I am asking this question because in c++ 11 #define tr(c,it) for(typeof(c.begin()) it=c.begin();it!=c.end();++it) does not work while in c++4.9.2 it works.

So I wanted to know which one is better java 8 or 7 and if java 8 then all commands of java 7 work on it or not. Plz help me in this.