A Place Of Code And Numbers

Inputs and Integers: C++ Tutorial Two

To continue off of the previous tutorial, this one will briefly explain how to use variables, and how to accept an input.

As you can see above, There are two things that differentiate this code from the previous code:

- “int anExample”:  This is using the variable type ‘int’, which means integer.  There are several types of variables, but int uses a numerical value (In a set range, which will be covered later) - “cin >> anExample;”: This uses the command ‘cin’ and the operator ‘>>’ to assign a value to the variable ‘anExample’.  You can remember cin as ‘c’ and ‘in(put)’ put together.

Welcome to the first C++ Tutorial: To begin, I will explain how the code above works.

First off, the information at the top of the image shows the “pre-processor directive” of the code. - This information lets the pre-processor know to take the contents of a file and use them at the line that uses information from that directive - In the case of the ones used, #include <iostream> is a standard library that allows the programmer to use commands such as “cout” and “cin”

Next, you will notice the “using namespace std;” - This is a namespace used to allow for the “standard use of cout” - Without this, you would need to type “std::cout” & “std::endl;”

After this, there is the “int main()” - This is the main stream of the program, for lack of better words, the main function.  This is where the code of your program will be executed, although functions can be used (They will be covered later)

Then, there is the code of the program: “cout << “Hi” << endl;” - This tells the program to display “Hi” on the screen - “cout”: A good way to remember this is a function for output is to see that it is “c” and “out(put)” put together - “<<”: An operator (Explained in more detail later) - “endl;”: Ends the line of the text

I have no clue how you found this place, but okay.

I am an intermediate C++ programmer and beginning Python programmer:

So welcome I guess!