what does the punctuation "<<" mean? I don't exactly know it's function.

Answer 1

"<<" is used with "cout" under <iostream> header, to print something to the screen. :)

ex: cout<<"i love programming!";

Result:
i love programming!

Answer 2

Why the downvote? I am right arent i?

Answer 3

it's called a "put to" operator. it's part of a class that is a part of the c/c++ library.
I'm not totally sure but I believe it's part of some stream class of some sort

Answer 4

shift left