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Running Greenfoot

The installed version

If you download and install Greenfoot and the Java JDK on your computer, you will have an opportunity to place a Greenfoot icon on your desktop. Justdouble-click the icon to start the Greenfoot program running. (Although not necessary, it is probably best to install the JDK before installing Greenfoot.)

The stand alone version

If you elect to use the stand alone version, you will extract the following folders from the zip file:

  • BlueJ (a more advanced Java programming environment)
  • Greenfoot (the programming environment of interest in this module)
  • jdk (the Java Development Kit)
  • userhome (not sure the purpose of this folder)

You will find a file named Greenfoot.exe inside the Greenfoot folder. It will have an icon of a small green footprint. Double click this file to start the Greenfoot program running.

Once the program is running, you can select the Greenfoot Tutorial item on the Help menu to open a webpage containing a variety of educational tutorials. (I will have more to say about this later.) The Help menu also provides access to several other useful items, such as documentation for both Greenfootand the Java JDK.

Textbook and tutorials

There is a textbook titled Introduction to Programming with Greenfoot -Object-Oriented Programming in Java with Games and Simulations that you can purchase on Amazon for about $75.00. (As usual, you can rent it for less or purchase a used copy for less.)

There are also many free online tutorials available to help you get started programming with Java and Greenfoot.

Whether you need the textbook, or whether the tutorials will suffice will depend on your background. My advice is to begin with the tutorials alone, andthen purchase the textbook if needed.

The textbook

That having been said, I will comment on the textbook. If I had the luxury of designing a computer programming curriculum from scratch, I would choose a modelvery similar to the Greenfoot textbook.

In particular, unlike the programming curricula in many colleges and universities, I would begin with the big picture (classes, interfaces, objects, methods, variables, etc.) and work my way down to the more detailed aspects of programming (selection, loops, operators, types, etc.) .

(The programming curricula at many colleges and universities begin at the bottom and work their way up instead of beginning at the top and working theirway down. As a result, many students become bogged down in details and either quit or fail and never get a chance to see the big picture of object-orientedprogramming.)

Because I believe in the top down model on which the textbook is based, I can recommend this textbook as a very good way to get startedlearning computer programming in general and object-oriented programming in particular. (I am not affiliated with the author or the publisher and receive no compensationfrom the sale of this textbook.)

The tutorials

Written tutorials

As of 02/19/13, the Greenfoot website provides the following written tutorials to help you learn how to use Greenfoot and begin programming:

Video tutorials

If you prefer video tutorials, the Joy Of Code is a thorough introduction to Greenfoot broken down into a large number of videos. A wide range of other short videos are also available.

Other possibilities

Once you become an accomplished Greenfoot programmer, you might be interested in some of the following possibilities, which generally require other resourcesor more advanced knowledge:

What comes next after Greenfoot

While this may sound like an exaggeration, programming with Greenfoot is sort of like riding a bicycle with training wheels. After awhile, you no longerneed the training wheels and you are ready to move on to true two-wheeler.

While is it possible to push Greenfoot into some pretty complex and sophisticated scenarios, there comes a time when you need to take the trainingwheels off and ride that two-wheeler.

Numerous possibilities are possible in this regard. One possibility is BlueJ - The interactive Java environment from the same folks who brought you Greenfoot. Like Greenfoot, the BlueJ software is available for free downloading. Also like Greenfoot, a textbook canbe purchased and some free tutorials are available.

Another possibility is to continue working through the modules in this collection.

A very good possibility is to do both.


This section contains a variety of miscellaneous information.

Housekeeping material
  • Module name: Gf0100: Objects First with Greenfoot
  • File: Gf0100.htm
  • Published: 02/19/13
  • Revised: 12/26/14

Financial : Although the Connexions site makes it possible for you to download a PDF file for thismodule at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, you should beaware that some of the HTML elements in this module may not translate well into PDF.

I also want you to know that, I receive no financial compensation from the Connexions website even if you purchase the PDF version of the module.

In the past, unknown individuals have copied my modules from cnx.org, converted them to Kindle books, and placed them for sale on Amazon.com showing me as the author. Ineither receive compensation for those sales nor do I know who does receive compensation. If you purchase such a book, please beaware that it is a copy of a module that is freely available on cnx.org and that it was made and published withoutmy prior knowledge.

Affiliation : I am a professor of Computer Information Technology at Austin Community College in Austin, TX.


Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
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