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Figure 3 - Question 3.
class java.awt.Button Button01class java.awt.Button Button02class java.awt.Label Label01class java.awt.Label Label02

Answer 3

Question 4

True or False: The code shown in Listing 4 will compile and run successfully producing the output shown in Figure 4 .

Listing 4 - Question 4.

/*File Q04.java ************************************************/import java.util.ArrayList; import java.awt.Button;import java.awt.Label; import java.awt.Component;public class Q04{ /*Given: Button and Label are subclasses of the Componentclass. The getClass method is defined in the Objectclass. When called on a reference to an object, the method returns the name of the class fromwhich the object was instantiated. */public static void main(String[] args){//Create and populate a list designed to // store references to objects of type Button// and display its contents. ArrayList<Button>listA = new ArrayList<>(); listA.add(new Button("Button01"));listA.add(new Button("Button02")); display(listA);System.out.println("");//blank line //Create and populate a list designed to// store references to objects of type Label // and display its contents.ArrayList<Label>listB = new ArrayList<>(); listB.add(new Label("Label01"));listB.add(new Label("Label02")); display(listB);}//end main //-------------------------------------------//static void display(ArrayList<Object>list){ for(Object n : list){System.out.println(n.getClass()); if(n instanceof Button){System.out.println( ((Button)n).getLabel());}else if(n instanceof Label) { System.out.println(((Label)n).getText());}//end else }//end for loop}//end display }//end class Q04
Figure 4 - Question 4.
class java.awt.Button Button01class java.awt.Button Button02class java.awt.Label Label01class java.awt.Label Label02

Answer 4

Question 5

True or False: The code shown in Listing 5 will compile and run successfully producing the output shown in Figure 5 .

Listing 5 - Question 5.

/*File Q05.java ************************************************/import java.util.ArrayList; import java.awt.Window;import java.awt.Frame; import javax.swing.JFrame;public class Q05{ /*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 JFrame>list){ for(Object n : list){System.out.println(n.getClass()); }//end for loopSystem.out.println();//blank line }//end display}//end class Q05

Questions & Answers

what is variations in raman spectra for nanomaterials
Jyoti Reply
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.
yes that's correct
I think
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
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
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 did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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