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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.)

Download

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.)

Install

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.

Miscellaneous

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
Disclaimers:

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.

-end-

Questions & Answers

Ayele, K., 2003. Introductory Economics, 3rd ed., Addis Ababa.
Widad Reply
can you send the book attached ?
Ariel
?
Ariel
What is economics
Widad Reply
the study of how humans make choices under conditions of scarcity
AI-Robot
U(x,y) = (x×y)1/2 find mu of x for y
Desalegn Reply
U(x,y) = (x×y)1/2 find mu of x for y
Desalegn
what is ecnomics
Jan Reply
this is the study of how the society manages it's scarce resources
Belonwu
what is macroeconomic
John Reply
macroeconomic is the branch of economics which studies actions, scale, activities and behaviour of the aggregate economy as a whole.
husaini
etc
husaini
difference between firm and industry
husaini Reply
what's the difference between a firm and an industry
Abdul
firm is the unit which transform inputs to output where as industry contain combination of firms with similar production 😅😅
Abdulraufu
Suppose the demand function that a firm faces shifted from Qd  120 3P to Qd  90  3P and the supply function has shifted from QS  20  2P to QS 10  2P . a) Find the effect of this change on price and quantity. b) Which of the changes in demand and supply is higher?
Toofiq Reply
explain standard reason why economic is a science
innocent Reply
factors influencing supply
Petrus Reply
what is economic.
Milan Reply
scares means__________________ends resources. unlimited
Jan
economics is a science that studies human behaviour as a relationship b/w ends and scares means which have alternative uses
Jan
calculate the profit maximizing for demand and supply
Zarshad Reply
Why qualify 28 supplies
Milan
what are explicit costs
Nomsa Reply
out-of-pocket costs for a firm, for example, payments for wages and salaries, rent, or materials
AI-Robot
concepts of supply in microeconomics
David Reply
economic overview notes
Amahle Reply
identify a demand and a supply curve
Salome Reply
i don't know
Parul
there's a difference
Aryan
Demand curve shows that how supply and others conditions affect on demand of a particular thing and what percent demand increase whith increase of supply of goods
Israr
Hi Sir please how do u calculate Cross elastic demand and income elastic demand?
Abari
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Source:  OpenStax, Object-oriented programming (oop) with java. OpenStax CNX. Jun 29, 2016 Download for free at https://legacy.cnx.org/content/col11441/1.201
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