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Getting started with Java programming

As is the case with many worthwhile endeavors, Java programming requires that you have some tools to begin. Fortunately, all of the software tools that youwill need to get started programming in Java are available for free downloading.

In addition to a computer with web access, you will need:

  • The Java Development Kit (JDK) and Java Runtime Engine (JRE)
  • The Java API documentation
  • A suitable text editor

The JDK and the JRE

The JDK, the JRE, and the API documentation are all freely available from Oracle. As of January 2016, you will find links to the documentation on the webpage titled Java Platform Standard Edition 8 Documentation . (The links given in this module may change as new versions of Java are released, but newer versions shouldn't be too difficult to locate with a websearch.)


The JDK and the included JRE can be downloaded from (External Link) That page provides several download options. Beginners should download the Java Platform (JDK) for the latest released version. (The JRE is included in the JDK package, so you don't need to download both.)


You will also probably need to follow the installation instructions for your computer. Pay particular attention to the instructions for setting the path and classpath environment variables. This is where many students stumble. Another usefuldocument on the path and classpath is available at (External Link)

The Java API documentation

The Java Platform, Standard Edition 8 API Specification is available here . You should be able to find the documentation for later versions with a web search.

Also see my Java OOP documentation module for instructions on how to use the documentation.

A suitable text editor

The module titled Jb0110: Java OOP: Programming Fundamentals, Getting Started explains how to use a text editor to create Java program code. Just about any text editor willdo as long as you can ensure that the file name extension is .java. Something as simple as Windows Notepad or Windows WordPad would probably be best for your first few simple programs.

Soon, however, you will probably want to upgrade to an editor that uses different colors to identify the different parts of your program. My favoritecolor-coded editor is the free version of JCreator . (The free version seems to have disappeared from their web page so you may have trouble finding it.)

Another free editor is DrJava . An advantage of this editor is that it can be run from a USB drive with no installation required. Anotherpossibility, although I have never had occasion to use it, is jGRASP . Numerous other Java color-coded editors, including BlueJ are available for free downloading on the web.


This section contains a variety of miscellaneous information.

Housekeeping material
  • Module name: Jy0010: Preface to Object-Oriented Programming (OOP) with Java
  • File: Jy0010.htm
  • Published: 11/16/12
  • Revised: 01/09/16

Financial : Although the Connexions site makes it possible for you to download aPDF file for this module at no charge, and also makes it possible for you to purchase a pre-printed version of the PDF file, youshould be aware 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 ofthe module.

In the past, unknown individuals have copied my modules from cnx.org, converted them to Kindle books, and placed them for sale onAmazon.com showing me as the author. I neither receive compensation for those sales nor do I know who does receive compensation. If youpurchase such a book, please be aware that it is a copy of a module that is freely available on cnx.org and that it was made andpublished without my 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
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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