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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

differentiate between demand and supply giving examples
Lambiv Reply
differentiated between demand and supply using examples
Lambiv
what is labour ?
Lambiv
how will I do?
Venny Reply
how is the graph works?I don't fully understand
Rezat Reply
information
Eliyee
devaluation
Eliyee
t
WARKISA
hi guys good evening to all
Lambiv
multiple choice question
Aster Reply
appreciation
Eliyee
explain perfect market
Lindiwe Reply
In economics, a perfect market refers to a theoretical construct where all participants have perfect information, goods are homogenous, there are no barriers to entry or exit, and prices are determined solely by supply and demand. It's an idealized model used for analysis,
Ezea
What is ceteris paribus?
Shukri Reply
other things being equal
AI-Robot
When MP₁ becomes negative, TP start to decline. Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 • Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of lab
Kelo
Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 • Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of labour (APL) and marginal product of labour (MPL)
Kelo
yes,thank you
Shukri
Can I ask you other question?
Shukri
what is monopoly mean?
Habtamu Reply
What is different between quantity demand and demand?
Shukri Reply
Quantity demanded refers to the specific amount of a good or service that consumers are willing and able to purchase at a give price and within a specific time period. Demand, on the other hand, is a broader concept that encompasses the entire relationship between price and quantity demanded
Ezea
ok
Shukri
how do you save a country economic situation when it's falling apart
Lilia Reply
what is the difference between economic growth and development
Fiker Reply
Economic growth as an increase in the production and consumption of goods and services within an economy.but Economic development as a broader concept that encompasses not only economic growth but also social & human well being.
Shukri
production function means
Jabir
What do you think is more important to focus on when considering inequality ?
Abdisa Reply
any question about economics?
Awais Reply
sir...I just want to ask one question... Define the term contract curve? if you are free please help me to find this answer 🙏
Asui
it is a curve that we get after connecting the pareto optimal combinations of two consumers after their mutually beneficial trade offs
Awais
thank you so much 👍 sir
Asui
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities, where neither p
Cornelius
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities,
Cornelius
Suppose a consumer consuming two commodities X and Y has The following utility function u=X0.4 Y0.6. If the price of the X and Y are 2 and 3 respectively and income Constraint is birr 50. A,Calculate quantities of x and y which maximize utility. B,Calculate value of Lagrange multiplier. C,Calculate quantities of X and Y consumed with a given price. D,alculate optimum level of output .
Feyisa Reply
Answer
Feyisa
c
Jabir
the market for lemon has 10 potential consumers, each having an individual demand curve p=101-10Qi, where p is price in dollar's per cup and Qi is the number of cups demanded per week by the i th consumer.Find the market demand curve using algebra. Draw an individual demand curve and the market dema
Gsbwnw Reply
suppose the production function is given by ( L, K)=L¼K¾.assuming capital is fixed find APL and MPL. consider the following short run production function:Q=6L²-0.4L³ a) find the value of L that maximizes output b)find the value of L that maximizes marginal product
Abdureman
types of unemployment
Yomi Reply
What is the difference between perfect competition and monopolistic competition?
Mohammed
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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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