hello world pascal tutorial
TRANSCRIPT
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Hello World
Pascal Tutorial
Nova Southeastern University
Cristal Berón-Locke
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Obtaining the Software
• Object Pascal is included on the disk that comes with Learn Pascal with Delphi, written by Warren Rachele.
• The book can be purchased for $49.95 from www.barnesandnoble.com.
(ISBN 1-55622-719-1)
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Before you begin to install, make sure that you exit all windows programs that are
currently running.
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Installing the Software
1. Place the disk into the CD-Rom drive (in many cases it is the D drive, however this may vary depending on the computer you are using).
2. Sometimes the program will begin the installation process on its own. If this happens, skip steps 3, 4, & 5. Instead, go to step 6.
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3. Double click on My Computer on your desktop
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4. Double click on the Object Pascal icon, which should be the same icon as your CD-ROM drive.
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5. Double click on install.exe.
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6. A blue screen will appear and on the left side there will be a message telling you to select a product to install.
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7. Click on the Next button to continue.
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8. Read the Software License Agreement and click on Yes to continue.
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9. Click on Next to continue.
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10. Choose the Typical installation and then click Next.
11. After Object Pascal has been installed, restart your computer.
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Starting the Program
1. Click on the Start button on the lower left hand side of your screen.
2. Go to Programs, then to Delphi, and finally click on Delphi 5.
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3. The program will begin and a screen will appear like the one below.
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Building a Template1. Click on the
x on the upper right hand corner of the Form 1 window.
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2. Close the Unit1.pas screen by clicking on the x in the upper right hand corner of the window.
3. When asked if you want to save the changes made, click no.
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4. Select Project from the Delphi 1 window and then View Source.
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5. A window will appear titled project project1.dpr. Delete all of the text in that window and type the following.
program template;
begin
end.
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6. Click on File and then Save Project As from the menu at the top of the screen.
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7. Name the file template and leave the extension as .dpr.
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8. Click on Project and then Options from the menu.
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9. Click on the tab called Linker.
10.Click on the square that says Generate console application.
11.Click on OK.
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12. Click on Project and then Add to Repository from the menu at the top of the screen.
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13. Type in under Title: Console Application
14. Type under Description: Template for console application
15. Type under Page: Projects
16. Type under Author: Your Name
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17. Now in order to confirm that all of the steps have been performed successfully, click on File and then Close All from the menu.
18.Select yes to save changes.
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19. Click on File and then New from the menu to bring up the New Items window.
20. Click on the tab named Projects, click on Console Applications, and then click OK.
21. You are now ready to begin programming!
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Hello World Program
1. Type the following into your template window:
program helloworld;
begin
writeln (‘Hello World!’);
writeln (‘This is my first Pascal program.’);
readln;
end.
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2. Click on Run and then Run from the menu at the top of the screen.
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3. Your first program will run on a DOS based screen.
4. In order to exit the program, hit any key.
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Saving Your Program
After all of that work, I have to assume you want to save your work of art!
Saving your work is important so that you will not have to start over when you
return.
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1. Click on File and then Save Project As from the menu at the top of the screen.
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2. A small Save As screen will open. It is waiting for further instructions on what you want to name your design. Type helloworld in the File name: box.
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Learn More
Delphi Object Pascal has a built in Quick Start Tutorial that can be accessed from the Help drop
down menu at the top of the screen.
The tutorial is easy to follow and will guide you on how to create more programs. It will also give you a few more commands that you can try on in your
own programs.
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Contact Information
Cristal Locke can be contacted through e-mail at [email protected] or through
http://tucker.dade.k12.fl.us/classrooms/Locke/gifted.htm
This tutorial was created on February 10, 2002.
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More Important
Have fun trying new programs.
More codes can be found and downloaded at:
http://www.dickmann.org/
http://www.negifreebee.com/nfbfprg.html
Maybe one day I will be purchasing one of your home-made programs!