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Figure 5 - Question 5.
class java.awt.Frame class java.awt.Frameclass java.awt.Window class java.awt.Windowclass javax.swing.JFrame class javax.swing.JFrame

Answer 5

Question 6

True or False: The code shown in Listing 6 will compile and run successfully producing the output shown in Figure 6 .

Listing 6 - Question 6.

/*File Q06.java ************************************************/import java.util.ArrayList; import java.awt.Window;import java.awt.Frame; import javax.swing.JFrame;public class Q06{ /*Given: Component extends ObjectContainer extends Component Window extends ContainerFrame extends Window JFrame extends FrameThe getClass method is defined in the Object class. When called on a reference to an object,the method returns the name of the class from which the object was instantiated.*/ public static void main(String[]args){ Frame frame0 = new Frame("Frame0");ArrayList<Frame>listA = new ArrayList<>(); listA.add(frame0);listA.add(new Frame("Frame1")); display(listA);ArrayList<Window>listB = new ArrayList<>(); listB.add(new Window(frame0));listB.add(new Window(frame0)); display(listB);ArrayList<JFrame>listC = new ArrayList<>(); listC.add(new JFrame("JFrame0"));listC.add(new JFrame("JFrame1")); display(listC);}//end main //-------------------------------------------//static void display( ArrayList<? super Frame>list){ for(Object n : list){System.out.println(n.getClass()); }//end for loopSystem.out.println();//blank line }//end display}//end class Q06
Figure 6 - Question 6.
class java.awt.Frame class java.awt.Frameclass java.awt.Window class java.awt.Windowclass javax.swing.JFrame class javax.swing.JFrame

Answer 6

Figures

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Answers

Answer 6

False. This program attempts to illustrate the use of a lower bounded wildcard to define a generic method that will accept an incoming reference to anobject of a generic class where the parameter type for the object is equal to or above the type of the wildcard in the inheritance hierarchy. The lower boundedwildcard type for the display method is Frame. Therefore, the display method will accept references to ArrayList objects for parameter types Frame, Window,Container, Component, or Object, but it will not accept a reference to an ArrayList object for parameter type JFrame. Therefore, the program will notcompile, resulting in the error shown in Figure 7 .

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
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
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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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