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Answer 8

Question 9

True or False: The program code shown in Listing 3 will compile and execute successfully to produce an output similar to that shownin Figure 2 .

Listing 3 - Question 9.
/*File Q09.java ************************************************/import java.util.*; public class Q09{ArrayList var1 = new ArrayList();void runIt(){var1.add(new Date()); var1.add("abcd");System.out.println( ((Date)var1.get(1)).getTime());System.out.println( ((String)var1.get(1)).length());}//end runIt public static void main(String[]args){ new Q09().runIt();}//end main}//end class Q09 //=============================================//
Figure 2 - Question 9.
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Answer 9

Question 10

The code shown in Listing 4 will not compile and run successfully. Without using a cast operator, what changes can you make to theclass named Q10 to cause the program to compile and run successfully and to produce the current time in milliseconds?

Listing 4 - Question 10.
/*File Q10.java ************************************************/import java.util.*; public class Q10{ArrayList var1 = new ArrayList();void runIt(){ var1.add(new Date());//Note the required cast in the following // statement.System.out.println( (var1.get(0)).getTime());}//runIt public static void main(String[]args){ new Q10().runIt();}//end main}//end class Q10 //=============================================//

Answer 10

Question 11

True or False: Using Java v1.7, even with the empty angle brackets shown in the instantiation of the ArrayList object in Listing 5 , the program in Listing 5 will compile and run successfully with no notes, warnings, errors, or othercomplaints from the compiler. The program will produce an output similar to that shown in Figure 3 .

Listing 5 - Question 11.
/*File Q11.java ************************************************/import java.util.*; public class Q11{ArrayList<Date>var1 = new ArrayList<>(); void runIt(){var1.add(new Date()); //Note the required cast in the following// statement. System.out.println((var1.get(0)).getTime()); }//runItpublic static void main(String[] args){new Q11().runIt(); }//end main}//end class Q11//=============================================//
Figure 3 - Question 11.

Answer 11

Question 12

True or False: The program shown in Listing 6 will compile and run successfully producing an output similar to that shown in Figure 4 .

Listing 6 - Question 12.
/*File Q12.java ************************************************/import java.util.*; public class Q12{ArrayList<Date>var1 = new ArrayList<Date>();void runIt(){ var1.add("abcd");System.out.println(var1.get(0).getTime()); }//end runItpublic static void main(String[] args){new Q12().runIt(); }//end main}//end class Q12 //=============================================//
Figure 4 - Question 12.

Answer 12

Question 13

True or False: The code shown in Listing 7 will compile and run successfully and produce the output shown in Figure 5 .

Questions & Answers

how do you translate this in Algebraic Expressions
linda Reply
why surface tension is zero at critical temperature
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 is biological synthesis of nanoparticles
Sanket 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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