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Answer and Explanation

Question 10

What output is produced by the program shown in Listing 10 ?

  • A. Compiler Error
  • B. Runtime Error
  • C. 1.0 2.0
  • D. D. None of the above
Listing 10 . Listing for Question 10.
public class Ap073{ public static void main(String args[]){new Worker().doArrays(); }//end main()}//end class definition class Worker{public void doArrays(){ double[]A = new double[2];A[0] = 1.0;A[1] = 2.0;Object B = A;System.out.println( ((double[])B)[0] + " " +((double[])B)[1]); }//end doArrays()}// end class

Answer and Explanation

Question 11

What output is produced by the program shown in Listing 11 ?

  • A. Compiler Error
  • B. Runtime Error
  • C. 1 2
  • D. None of the above
Listing 11 . Listing for Question 11.
public class Ap074{ public static void main(String args[]){new Worker().doArrays(); }//end main()}//end class definition class Worker{public void doArrays(){ int[]A = new int[2];A[0] = 1;A[1] = 2;double[]B = (double[])A;System.out.println(B[0] + " " + B[1]); }//end doArrays()}// end class

Answer and Explanation

Question 12

What output is produced by the program shown in Listing 12 ?

  • A. Compiler Error
  • B. Runtime Error
  • C. 1 2
  • D. None of the above
Listing 12 . Listing for Question 12.
public class Ap075{ public static void main(String args[]){new Worker().doArrays();}//end main() }//end class definitionclass Worker{ public void doArrays(){int[] B = returnArray();for(int i = 0; i<B.length;i++){ System.out.print(B[i]+ " "); }//end for loopSystem.out.println(); }//end doArrays()public int[]returnArray(){ int[]A = new int[2];A[0] = 1;A[1] = 2;return A; }//end returnArray()}// end class

Answer and Explanation

Question 13

What output is produced by the program shown in Listing 13 ?

A. Compiler Error B. Runtime Error C. 0 0 0 0 1 2 D. None of the above
Listing 13 . Listing for Question 13.
public class Ap076{ public static void main(String args[]){new Worker().doArrays(); }//end main()}//end class definition class Worker{public void doArrays(){ int[]A[];A = new int[2][3];for(int i=0; i<A.length;i++){ for(int j=0;j<A[0].length;j++){A[i][j]= i*j; }//end inner loop}//end outer loop for(int i=0; i<A.length;i++){ for(int j=0;j<A[0].length;j++){System.out.print( A[i][j] + " ");}//end inner loop System.out.println();}//end outer loop }//end doArrays()}// end class

Answer and Explanation

Question 14

What output is produced by the program shown in Listing 14 ?

  • A. Compiler Error
  • B. Runtime Error
  • C. 1 2
  • D. None of the above
Listing 14 . Listing for Question 14.
public class Ap077{ public static void main(String args[]){new Worker().doArrays(); }//end main()}//end class definition class Worker{public void doArrays(){ Subclass[]A = new Subclass[2];A[0] = new Subclass(1);A[1] = new Subclass(2);Object X = A;Superclass B = A; Subclass[]C = (Subclass[])B;Subclass[] Y = (Subclass[])X; System.out.println(C[0] + " " + Y[1]); }//end doArrays()}// end class class Superclass{private int data; public Superclass(int data){this.data = data; }//end constructorpublic int getData(){return data; }//end getData()public String toString(){return "" + data; }//end toString()}//end class SuperClass class Subclass extends Superclass{public Subclass(int data){ super(data);}//end constructor }//end class Subclass

Questions & Answers

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
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
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
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
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
How can I make nanorobot?
Lily
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
how can I make nanorobot?
Lily
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
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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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