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Prepare the library for use

Once you have downloaded the zip file, you will need to extract the folder named bookClasses from the zip file and store it somewhere on your computer's disk.

Library documentation

When you examine the contents of the bookClasses folder, you will see that in addition to source code and compiled class files for thelibrary, the folder also contains javadoc documentation for the library in afolder named doc and some other material as well. Go to the doc folder and open the file named index.html in your browser to view the documentation.

Put the library on the classpath

You will need to put the path to the bookClasses folder on your classpath in order to incorporate classes from the library into yourprograms.

Figure 4 . Putting the library on the classpath.
del *.class javac -cp .;M:\bookClasses *.javajava -cp .;M:\bookClasses Prob01

Figure 4 shows three commands that you can execute at a Windows command prompt to

  • Delete the class files from the current folder or current directory -- Google current directory if you don't recognize the term,
  • Compile the source-code files in the current folder , and
  • Execute the compiled version of a program named Prob01 in the current folder

The commands shown in Figure 4 assume that the bookClasses folder is in the root directory on the M-drive. The bookClasses folder will likely be in a different location on your computer. They also assume thatyou are compiling and running a program having its main method in a class named Prob01 in a file named Prob01.java .

Be sure to include the period and the semicolon shown before the M in Figure 4 . This tells the Java compiler and the Java Virtual Machine to search first in the current folder before searching elsewhere on the disk for the required files.

You can also put the three commands in a batch file and run the batch file to avoid having to type the three commands each time you need to compile and runthe program. In that case, you should add a pause command following the other three commands.

Note that this batch file must be placed in the same folder that contains the file named Prob01.java , and that folder must be your "current directory. DO NOT attempt to execute the commands shown in Figure 4 from inside the bookClasses folder."

If you are using an IDE such as DrJava, JCreator, or JGrasp, see the instructions for the IDE to learn how to set the classpath in the IDE.

Two versions of Hello World

It is often useful to have the code for a simple program to test your system. This section presents two versions of the classical Hello World program. The first version is a simple text version that doesn't use Ericson's library.This version can be used to confirm that the Java Development Kit (JDK) is properly installed on your computer.

The second version is a graphic version that does require Ericson's library.This version can be used to confirm proper installation and use of the library.

A text version of Hello World

The simple program shown in Listing 1 causes the words Text Hello World to be displayed on the standard output device when the program is compiled andexecuted.

Questions & Answers

what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
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.
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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