C++ (The New Boston Tutorial)

The New Boston has two series of C++ tutorials available, the first at http://www.thenewboston.com/?cat=21&pOpen=tutorial, and the second, which I have chosen to profile, at http://www.thenewboston.com/?cat=66&pOpen=tutorial.

I'm having a look at a few of them and making some notes to see if they'd be useful in class.

Update: I've chosen not to pursue this further, not because of the quality of the videos, but because I'm placing my emphasis on other languages instead.

Installing Code:Block

• • Download and install codeblocks-10.05mingw-setup.exe (or more current version) from http://www.codeblocks.org/downloads/26 (IDE and compiler)

    • See website for Apple or Linux versions

  • Create default Console application (Hello World)

Understanding a Simple C++ Program

• • Understand the Hello World programming created above

    • #include <iostream>

      • is a pre-processor directive

    • Use of whitespace (tabs, spaces, and blanks lines do not affect compilation)

    • using namespace std;

      • includes a library

  • int main()

    • • the program always starts here!

      • note that the syntax (i.e., use of parentheses "()", semi-colons ";", braces "{}", etc. is critical) or program will not work

  • cout << "Hello world!" << endl;

    • • prints "Hello World!" to the output console, followed by an EOL (new line) character

More on Printing Text

• • all statements end with semi-colons

  • << endl used to start a new line in the output stream

  • \n can also be used to start a new line

  • Note: to prevent the console from closing automatically when running the exe programs outside of the IDE, insert cin.get(); at the end of your program

Come Get Sum!

• • an integer variable can be declared as follows:

  • int nameOfVariable;

  • input from the keyboard can be stored in a variable like this:

  • cin >> nameOfVariable;