int is a datatype for a variable. In this case, integer.
endl inserts a newline character(\n), and in buffered streams, flushes the buffer. The ; at the end ends the line.
cout is an object of the ostream class which prints text/data out to the terminal/command prompt.
cin takes input from the user via the terminal/command prompt.
std refers to the standard library. Usually, things like
cout would have this prefaced (
std::cout), but if
using namespace std; is included, you can leave out the
std:: and just use
cout to echo.
>> is the extraction operator. It performs an input operation on a stream.
<< is an insertion operator. Does the opposite of >>. I'm sure you can figure it out.
<iostream> is used after an #include to include the file "iostream" from the compiler's include directory (<> specify the compiler include dir.) Iostream provides input and output functionality using streams.
DoPrint() is used to call the function DoPrint, which I assume is somewhere in your code.
As well, I'm going to take this time to link you to a few websites that may help you learn this, and a few books as well.
Websites:
learncpp.com
Not overly familiar with the website myself, but saw a good review on it and skimmed over it. Seems decent.
http://cplusplus.com/Not a bad website. Has a decent reference. A bitch to navigate IMO, however.
(Note on the websites: A lot of these websites don't exactly teach the best practices. While excellent for learning at the beginning, they won't teach you everything, and take everything you read with a grain of salt.)
Books:
C++ Primer
Great for beginners. I'd honestly recommend it.
http://www.demonoid.me/files/details/2231948/63090872/http://www.amazon.com/Primer-Plus-4th-Stephen-Prata/dp/0672322234
