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Baldwin kicks off an accessible miniseries covering the necessary and most significant aspects of OOP using Java. He begins with encapsulation and objects.

Table of contents


This module is one in a series of modules designed to teach you about the essence of Object-Oriented Programming (OOP) using Java with particular emphasison accessibility for blind students.

This module, along with several modules that follow provide the background information that you will need to understand the sound and audio programmingmaterial later in the course. You will need to study this material if you are new to Java programming.

On the other hand, if you already have Java programming experience, or if you are just curious, you may want to jump ahead to the module titled Jbs2000-What is Sound?


As mentioned in an earlier module, in addition to an Internet connection and a browser, you will need the following tools (as a minimum) to work through the exercises in this and the following modules:

  • An audio screen reader that is compatible with your operating system, such as the NonVisual Desktop Access program (NVDA), which is freelyavailable at (External Link) .
  • A refreshable Braille display capable of providing line by line tactile output of information displayed on the computer monitor is recommended. Sucha display is described at (External Link) , is recommended.
  • The Oracle Java Development Kit (JDK) (See (External Link) )
  • Documentation for the Oracle Java Development Kit (JDK) (See (External Link) )
  • A simple IDE or text editor for use in writing Java code.

The minimum prerequisites for understanding the material in this and the following modules include:

  • A cursory understanding of algebra.
  • An understanding of the material covered in the Programming Fundamentals modules that you will find in two formats at the following URLs. These modules provide fundamental programming concepts using the Javaprogramming language in a format that should be accessible.

The essence of OOP

My dictionary provides several definitions for the word essence. Among those definitions are the following:

  • The property necessary to the nature of a thing
  • The most significant property of a thing

Thus, this and several modules that follow describe and discuss the necessary and most significant aspects of OOP using Java -- theessence of OOP using Java. For the first few modules, I will provide that information in a high-level format, devoid of any requirement to understand detailed Java syntax. In those cases where an understanding of Java syntax is required, I will provide the necessary syntax information in the form of supplementary notes.

If you understand the fundamentals of computer programming described above , you should be able to read and understand the modules in this miniseries.

Viewing tip

I recommend that you open another copy of this document in a separate browser window and use the following links to easily find and view the listings while you are reading about them.

Questions & Answers

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
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Accessible objected-oriented programming concepts for blind students using java. OpenStax CNX. Sep 01, 2014 Download for free at https://legacy.cnx.org/content/col11349/1.17
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