Trying to learn C++

[Stephen]

I'm trying to learn Cpp programing on Linux Mint 18.3 which is based on 
Ubuntu 16.04.

Every time I try to compile a source file that has #include <iostream> I 
get a message saying that it can't find iostream. I tried using 
iostream.h and it had the same effect.

I tried "using namespace std;". I got a lot of lines saying that such 
and such was not a member of std::???

With <iostream.h> or <iostream> or with it in quotes I get the same thing.


stephen at DeskTop ~ $ g++ ~/projects/hello.cpp
/home/stephen/projects/hello.cpp:2:22: fatal error: "iostream": No such 
file or directory
compilation terminated.
stephen at DeskTop ~ $

I would really like to learn c++ programing, but I have to fix this so I 
can use the book C++ in 21 days.

Thanks in advance

Stephen.