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Answer and Explanation

Question 6

What output is produced by the program shown in Listing 6 ?

  • A. Compiler Error
  • B. Runtime Error
  • C. 4 -3
  • D. 3 -4
  • E. None of the above
Listing 6 . Listing for Question 6.
public class Ap044{ public static void main(String args[]){new Worker().doCast(); }//end main()}//end class definition class Worker{public void doCast(){ double w = 3.5;double x = -3.499999999999; System.out.println(doIt(w) +" " + doIt(x));}//end doCast()private int doIt(double arg){ if(arg>0){ return (int)(arg + 0.5);}else{ return (int)(arg - 0.5);}//end else }//end doIt()}//end class definition

Answer and Explanation

Question 7

What output is produced by the program shown in Listing 7 ?

  • A. Compiler Error
  • B. Runtime Error
  • C. 3.5/9/true
  • D. None of the above
Listing 7 . Listing for Question 7.
public class Ap045{ public static void main(String args[]){new Worker().doConcat(); }//end main()}//end class definition class Worker{public void doConcat(){ double w = 3.5;int x = 9; boolean y = true;String z = w + "/" + x + "/" + y; System.out.println(z);}//end doConcat() }// end class

Answer and Explanation

Question 8

Which of the following best approximates the output from the program shown in Listing 8 ?

  • A. Compiler Error
  • B. Runtime Error
  • C. Dummy@273d3c
  • D. Joe 35 162.5
Listing 8 . Listing for Question 8.
public class Ap046{ public static void main(String args[]){new Worker().doConcat(); }//end main()}//end class definition class Worker{public void doConcat(){ Dummy y = new Dummy();System.out.println(y); }//end doConcat()}// end class class Dummy{private String name = "Joe"; private int age = 35;private double weight = 162.5; }//end class dummy

Answer and Explanation

Question 9

Which of the following best approximates the output from the program shown in Listing 9 ?

  • A. Compiler Error
  • B. Runtime Error
  • C. C. Dummy@273d3c
  • D. Joe Age = 35 Weight = 162.5
Listing 9 . Listing for Question 9.
public class Ap047{ public static void main(String args[]){new Worker().doConcat(); }//end main()}//end class definition class Worker{public void doConcat(){ Dummy y = new Dummy();System.out.println(y); }//end doConcat()}// end class class Dummy{private String name = "Joe"; private int age = 35;private double weight = 162.5;public String toString(){ String x = name + " " +" Age = " + age + " " + " Weight = " + weight;return x; }}//end class dummy

Answer and Explanation

Question 10

Which of the following best approximates the output from the program shown in Listing 10 ? (Note the use of the constructor for the Date class that takes no parameters.)

  • A. Compiler Error
  • B. Runtime Error
  • C. Sun Dec 02 17:35:00 CST 2012 1354491300781
  • D. Thur Jan 01 00:00:00 GMT 1970
  • 0
  • None of the above
Listing 10 . Listing for Question 10.
import java.util.*; public class Ap048{public static void main( String args[]){ new Worker().doConcat();}//end main() }//end class definitionclass Worker{ public void doConcat(){Date w = new Date(); String y = w.toString();System.out.print(y); System.out.println(" " + w.getTime());}//end doConcat() }// end class

Questions & Answers

Application of nanotechnology in medicine
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.
Damian
yes that's correct
Professor
I think
Professor
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
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
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
hi
Loga
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
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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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