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Usage instructions

At runtime, the name of the class that implements the GraphIntfc01 interface must be provided as a command-line argument.

If the command-line argument is missing, the program instantiates an object from the internal test class named junk and plots the data produced by thatobject. Therefore, you can test the program by running it with no command-line arguments. This will produce the display shown in Figure 4 .

Figure 4. Graphic Display for Self-Test Class.
missing image

If the command-line argument is provided, the program instantiates an object of the class whose name matches the argument, and plots the data produced bythat object.

Plotting parameters

This program provides the following text fields for user input, along with a button labeled Graph . This allows the user to adjust the parameters and re-plot the graph as many times as needed with as many differentplotting scales as may be needed:

  • xMin = minimum x-axis value
  • xMax = maximum x-axis value
  • yMin = minimum y-axis value
  • yMax = maximum y-axis value
  • xTicInt = tic interval on x-axis
  • yTicInt = tic interval on y-axis
  • xCalcInc = calculation interval

The user can modify any of these parameters and then press the Graph button to cause the five functions to be re-plotted according to the newparameters.

A new object

Whenever the Graph button is pressed, the event handler for that button instantiates a new object of the class that implements the GraphIntfc01 interface.

Depending on the nature of that class, this may be redundant in some cases. However, it is useful in those cases where it is necessary to refresh the valuesof instance variables defined in the class (such as a counter, for example) .

(I will show you how to eliminate this feature from the plotting program if you decide that it is unnecessary for your data.)

Requires java sdk 1.4 or later

This program uses constants that were first defined in the Color class of v1.4.0. Therefore, the program requires v1.4.0 or later to compile andexecute correctly.

Will discuss in fragments

I will discuss this program in fragments. As mentioned earlier, a complete listing of the program is provided in Listing 39 near the end of the module. You should be able to copy and paste that code into your Java source file, and thencompile and execute it successfully.

The class named Graph01

The entire class, including the main method is shown in Listing 19 .

Listing 19. The class named Graph01.
import java.awt.*; import java.awt.event.*;import java.awt.geom.*; import javax.swing.*;import javax.swing.border.*; class Graph01{public static void main( String[]args) throws NoSuchMethodException,ClassNotFoundException, InstantiationException,IllegalAccessException{ if(args.length == 1){//pass command-line parameter new GUI(args[0]); }else{//no command-line parameter given new GUI(null);}//end else }// end main}//end class Graph01 definition

The primary purpose of main method is to instantiate an object of the class named GUI .

In addition, the main method checks to see if the user provided a command-line argument, and if so, passes it along to the constructorfor the GUI class.

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
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
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
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.
Bharti
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
Daniel
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
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
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
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
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.
Tarell
what is the actual application of fullerenes nowadays?
Damian
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.
Tarell
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.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
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.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
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Source:  OpenStax, Digital signal processing - dsp. OpenStax CNX. Jan 06, 2016 Download for free at https://legacy.cnx.org/content/col11642/1.38
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