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Answer and Explanation

Question 6 .

What output is produced by the program shown in Listing 4 ?

  • A. Compiler Error
  • B. Runtime Error
  • C. true
  • D. false
Listing 4 . Question 6.
public class Ap005{ public static void main(String args[]){new Worker().printBoolean(); }//end main()}//end class definition class Worker{public void printBoolean(){ boolean myVar;System.out.println(myVar); }//end printBoolean()}//end class definition

Answer and Explanation

Question 7 .

What output is produced by the program shown in Listing 5 ?

  • A. Compiler Error
  • B. Runtime Error
  • C. true
  • D. false
Listing 5 . Question 7.
public class Ap006{ public static void main(String args[]){new Worker().printBoolean(); }//end main()}//end class definition class Worker{public void printBoolean(){ boolean myVar = true;myVar = false; System.out.println(myVar);}//end printBoolean() }//end class definition

Answer and Explanation

Question 8 .

The plus (+) character can be used to perform numeric addition in Java. What output is produced by the program shown in Listing 6 ?

  • A. Compiler Error
  • B. Runtime Error
  • C. true
  • D. 2
  • E. 1
Listing 6 . Question 8.
public class Ap007{ public static void main(String args[]){new Worker().printBoolean(); }//end main()}//end class definition class Worker{public void printBoolean(){ boolean myVar = true;System.out.println(1 + myVar); }//end printBoolean()}//end class definition

Answer and Explanation

Question 9 .

The plus (+) character can be used to perform numeric addition in Java. What output is produced by the program shown in Listing 7 ?

  • A. Compiler Error
  • B. Runtime Error
  • C. 6
  • D. 6.0
Listing 7 . Question 9.
public class Ap008{ public static void main(String args[]){new Worker().printMixed(); }//end main()}//end class definition class Worker{public void printMixed(){ double x = 3;int y = 3; System.out.println(x+y);}//end printMixed() }//end class definition

Answer and Explanation

Question 10 .

The slash (/) character can be used to perform numeric division in Java. What output is produced by the program shown in Listing 8 ?

  • A. Compiler Error
  • B. Runtime Error
  • C. 0.33333334
  • D. 0.3333333333333333
Listing 8 . Question 10.
public class Ap009{ public static void main(String args[]){new Worker().printMixed(); }//end main()}//end class definition class Worker{public void printMixed(){ System.out.println(1.0/3);}//end printMixed() }//end class definition

Answer and Explanation

Programming challenge questions

Question 11

Write the program described in Listing 9 .

Listing 9 . Question 11.
/*File Ap0010a1.java Copyright 2012, R.G.Baldwin Instructions to student:This program refuses to compile without errors. Make the necessary corrections to cause the program tocompile and run successfully to produce the output shown below:ITSE 2321**********************************************************/ public class Ap0010a1{public static void main(String args[]){System.out.println("ITSE"); new Worker().doIt();}//end main() }//end class definition//=======================================================// Class Worker{public void doIt(){ System.out.println("2321");}//end doIt() }//end class definition//=======================================================//

Questions & Answers

calculate molarity of NaOH solution when 25.0ml of NaOH titrated with 27.2ml of 0.2m H2SO4
Gasin Reply
what's Thermochemistry
rhoda Reply
the study of the heat energy which is associated with chemical reactions
Kaddija
How was CH4 and o2 was able to produce (Co2)and (H2o
Edafe Reply
explain please
Victory
First twenty elements with their valences
Martine Reply
what is chemistry
asue Reply
what is atom
asue
what is the best way to define periodic table for jamb
Damilola Reply
what is the change of matter from one state to another
Elijah Reply
what is isolation of organic compounds
IKyernum Reply
what is atomic radius
ThankGod Reply
Read Chapter 6, section 5
Dr
Read Chapter 6, section 5
Kareem
Atomic radius is the radius of the atom and is also called the orbital radius
Kareem
atomic radius is the distance between the nucleus of an atom and its valence shell
Amos
Read Chapter 6, section 5
paulino
Bohr's model of the theory atom
Ayom Reply
is there a question?
Dr
when a gas is compressed why it becomes hot?
ATOMIC
It has no oxygen then
Goldyei
read the chapter on thermochemistry...the sections on "PV" work and the First Law of Thermodynamics should help..
Dr
Which element react with water
Mukthar Reply
Mgo
Ibeh
an increase in the pressure of a gas results in the decrease of its
Valentina Reply
definition of the periodic table
Cosmos Reply
What is the lkenes
Da Reply
what were atoms composed of?
Moses Reply
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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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