Your first C++ Program : Hello World!

Code (Text):

1. // My First Program!
2.  
3. #include <iostream>
4. using namespace std;
5.  
6. int main ()
7. {
8.   cout << "Hello World!";
9.   return 0;
10. }

In return when you run your program, you will recieve a nice, greeting hello world, if you want to change it go to line 6 and change hello world to whatever you want it to be.

You're most probably wondering what // is, // is used for making comments, in the program below you will see the program above modified a little bit. Also note, comments do not effect your program, they're there for reference to what a certain code may do or if you want to know what a program is!

Code (Text):

1. // A welcome program for Neofriends!
2.  
3. #include <iostream>
4. using namespace std;
5.  
6. int main ()
7. {
8.   cout << "Welcomes to Neofriends, Spam and Die >_>";
9.   return 0;
10. }

A little explanation of some of the lines

// A welcome program for Neofriends!
This is a comment. All lines beginning with // are known as
comments and do not have any effect on what the program does . The programmer can use them to include short explanations or observations inside the source code. As it is now, it is just an explanation of what our program is!

#include <iostream>
Lines beginning with a number/pound sign (#) are directives for the preprocessor. They are not regular code lines with expressions but indications for the preprocessor. In this case the directive

Code (Text):

1. #include <iostream>

tells the preprocessor to include the iostream standard file. Iostream includes the declarations of the basic standard input-output library in C++, and it is included because its needed later in the program.

return 0;
The return statement causes the main function to finish. return may be followed by a return code (in our example is followed by the return code 0). A return code of 0 for the main function is generally interpreted as the program worked as expected without any errors during its debugging/running. This is the common way of ending a C++ program.

 

This sort of explains Actionscript for me... Although I still can't wait for my reserved book on Actionscript to come.

 

wow, a LOT of this is like SCAR. I might accually try to learn this

 

hehe, i prefer C
much easier for me

 

@dikel16

ok... but C++ is just the same thing, you can use C fonctions in C++ programmes because they are compiled by the same compiler. For example, visual studio C/C++ compiler.

You must be an old school programmmer .

zav75 - careful about gravedigging although I'm sure all the coders will be happy to have your input! - Marlene