music
OSdata.com: programming text book 

OSdata.com

first program

summary

    Each language has a basic structure and format for writing programs.

    We will look at a very simple program to see the basic format.

free computer programming text book project

table of contents
If you like the idea of this project,
then please donate some money.
more information on donating

Google

first program

    Each language has a basic structure and format for writing programs.

    We will look at a very simple program to see the basic format.

    Most programs have some simple form of output. We will use the most simple versions possible and avoid discussing any intricacies until a little later.

Hello World

    The classic first example is the Hello World program. This is a program that simply states “Hello World”.

    These are not just for beginners. It is common for professional programmers to start with a simple Hello World program when learning a new language or even just becoming familiar with a new compiler or development system.

    You may recall the chapter on Hello World programs in different languages.

Pascal

    A Pascal program starts with the reserved word program, the name of the program, and whether the program has input or output.

program SimpleProgram (input, output);
            or
program SimpleProgram (output);

    The main body of a Pascal program starts with the reserved word begin and ends with the reserved word end and a period. The lines of code (statements) come in between.

    Note that the name of the program must be a valid identifier (name) in Pascal. We will cover this in the next chapter.

program SimpleProgram (output);
begin
    writeln ('Hello World')
end.

other

   “10. Get into a rut early: Do the same processes the same way. Accumulate idioms. Standardize. The only difference (!) between Shakespeare and you was the size of his idiom list - not the size of his vocabulary.” —Alan Perlis, Epigrams on Programming, ACM’s SIGPLAN Notices Volume 17, No. 9, September 1982, pages 7-13

   “35. Everyone can be taught to sculpt: Michelangelo would have had to be taught how not to. So it is with the great programmers.” —Alan Perlis, Epigrams on Programming, ACM’s SIGPLAN Notices Volume 17, No. 9, September 1982, pages 7-13

chapter contents


free music player coding example

    Coding example: I am making heavily documented and explained open source code for a method to play music for free — almost any song, no subscription fees, no download costs, no advertisements, all completely legal. This is done by building a front-end to YouTube (which checks the copyright permissions for you).

    View music player in action: www.musicinpublic.com/.

    Create your own copy from the original source code/ (presented for learning programming).


return to table of contents
free downloadable college text book

view text book
HTML file

Because I no longer have the computer and software to make PDFs, the book is available as an HTML file, which you can convert into a PDF.

previous page next page
previous page next page

free computer programming text book project

Building a free downloadable text book on computer programming for university, college, community college, and high school classes in computer programming.

If you like the idea of this project,
then please donate some money.

send donations to:
Milo
PO Box 1361
Tustin, California 92781

Supporting the entire project:

    If you have a business or organization that can support the entire cost of this project, please contact Pr Ntr Kmt (my church)

more information on donating

Some or all of the material on this web page appears in the
free downloadable college text book on computer programming.


Google


Made with Macintosh

    This web site handcrafted on Macintosh computers using Tom Bender’s Tex-Edit Plus and served using FreeBSD .

Viewable With Any Browser


    †UNIX used as a generic term unless specifically used as a trademark (such as in the phrase “UNIX certified”). UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company Ltd.

    Names and logos of various OSs are trademarks of their respective owners.

    Copyright © 2010, 2011 Milo

    Created: October 30, 2010

    Last Updated: February 23, 2011


return to table of contents
free downloadable college text book

previous page next page
previous page next page