Chapter 2, Problem 2.12E

What, if anything, prints when each of the following statements is performed? If nothing
prints, then answer "nothing." Assume x = 2 and y = 3.
a) cout<<x ;
b)cout<<x+x;
c)cout<< ;
d)cout<<<<x;
e)cout<<x+y<<<<y+x;
f)z=x+y;
g)cin>>x>>y;
h)//cout<<"x+y="<<x+y;
i)cout<< ;