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Two very similar plotting programs are shown in the listings near the end of the module. The program named Graph01 , shown in Listing 39 , can be used to plot as many as five separate functions, each in its own plottingarea. Examples of the display produce by this program are shown in Figure 1 , Figure 2 , Figure 3 , and Figure 4 . I will briefly discuss this program in the paragraphs that follow.

The program named Graph02 , shown in Listing 40 , can also be used to plot as many as five separate functions. In this case, however, thegraphs produced by the functions are superimposed in the same plotting area. This is simply an alternative display format. I won't discuss any of theparticulars of this program, but if you understand the program named Graph01 , you will have no difficulty understanding this program named Graph02 as well.

The program named Graph01

This program is designed to instantiate an object of a class file that implements the interface named GraphIntfc01 , and to plot the data provided by up to five functions defined in that class file.

The methods in the class corresponding to the functions to be plotted are named f1 , f2 , f3 , f4 , and f5 .

As you learned in the earlier discussion, the class containing the functions must also define a static method named getNmbr . This method takes no parameters and returns the number of functions to be plotted. If this method returns avalue greater than 5, a NoSuchMethodException will be thrown.

Some general comments

Separate plotting areas

The overall plotting surface is divided into the required number of equally sized plotting areas. One function is plotted on Cartesian coordinates in eachplotting area.

A noarg constructor is required

The constructor for the class that implements GraphIntfc01 must not require any parameters. This is because the newInstance method of the Class class is used to instantiate an object, based on a String provided as a command-line argument. The newInstance method can only create objects using a noarg constructor.

Some methods may not be called

If the getNmbr method returns a value less than 5, then the methods that will not be called begin with f5 and work down toward f1 . For example, if the value returned by getNmbr is 3, then the program will call the methods named f1 , f2 , and f3 . While the methods named f4 and f5 must exist in order to satisfy the interface, they won't be called. Therefore, it doesn't matter what those methodsreturn as long as it is type double.

The visual appearance

As shown in Figure 1 , the plotting areas have alternating white and gray backgrounds to make them easy to separate visually.

All curves are plotted in black. A Cartesian coordinate system with axes, tic marks, and labels is drawn in red in each plotting area.

The Cartesian coordinate system in each plotting area has the same horizontal and vertical scale, as well as the same tic marks and labels on the axes.

The labels displayed on the axes, correspond to the values of the extreme edges of the plotting area.

A test class

The program also compiles a test class named junk , which contains the five required methods plus the method named getNmbr . This makes it easy to compile and test the program in a stand-alone mode.

Questions & Answers

find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
The given of f(x=x-2. then what is the value of this f(3) 5f(x+1)
virgelyn Reply
hmm well what is the answer
how do they get the third part x = (32)5/4
kinnecy Reply
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
okay, so you have 6 raised to the power of 2. what is that part of your answer
I don't understand what the A with approx sign and the boxed x mean
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
I'm not sure why it wrote it the other way
I got X =-6
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
oops. ignore that.
so you not have an equal sign anywhere in the original equation?
is it a question of log
Commplementary angles
Idrissa Reply
im all ears I need to learn
right! what he said ⤴⤴⤴
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
I'm interested in nanotube
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
I'm interested in Nanotube
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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