So far am I correct?

Question

Maybe a stupid ? but I want to make sure I understand before I go any further.

#include <iostream> gets basic C++ libraries that you can use like cout; endl and not sure what others.

using namespace std; is used for name recognition; example will be like if you have two Heather's in your class and you need to define each one.

Answer 1

The first one is nearly correct, it is basic C++ libraries for input and output
using name space std; allow you not to use std each time you use something in the namespace
For example :
std::cout become cout

Answer 2

Like @Baptise said,

You are right about iostream.

Namespace is not used like that, it is used to include libraries like the std ( Standard library ).

Here is a refference for more information.

http://www.cplusplus.com/doc/tutorial/program_structure/

Answer 3

Even I had the same doubt still not clear

Answer 4

A post and code from today showed that,

@Thomas' second statement has truth to it.

Here is the thread

https://www.sololearn.com/discuss/475134/?ref=app

Answer 5

I guess so
BTW I can't assure you I am weak in c++

Answer 6

as the name suggests iostream (input output stream) allows you to take an input, process it and return an output in c++ so, yes you are right about the first one but you don't have to be sure about the second.. just take it as a shortcut to writing your code.. instead of writing std:: every time you use an iostream function I a pain... so writing that line allows you to use those functions without having to write std:: every time.. you will learn more about this when you startle learning about classes and headers. till then... knowing this Is enough!

hope this helps
peace✌

Answer 7

here I found a resource for you
https://www.quora.com/What-does-using-namespace-std-mean-in-C++