<< Chapter < Page Chapter >> Page >

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

Ayele, K., 2003. Introductory Economics, 3rd ed., Addis Ababa.
Widad Reply
can you send the book attached ?
Ariel
?
Ariel
What is economics
Widad Reply
the study of how humans make choices under conditions of scarcity
AI-Robot
U(x,y) = (x×y)1/2 find mu of x for y
Desalegn Reply
U(x,y) = (x×y)1/2 find mu of x for y
Desalegn
what is ecnomics
Jan Reply
this is the study of how the society manages it's scarce resources
Belonwu
what is macroeconomic
John Reply
macroeconomic is the branch of economics which studies actions, scale, activities and behaviour of the aggregate economy as a whole.
husaini
etc
husaini
difference between firm and industry
husaini Reply
what's the difference between a firm and an industry
Abdul
firm is the unit which transform inputs to output where as industry contain combination of firms with similar production 😅😅
Abdulraufu
Suppose the demand function that a firm faces shifted from Qd  120 3P to Qd  90  3P and the supply function has shifted from QS  20  2P to QS 10  2P . a) Find the effect of this change on price and quantity. b) Which of the changes in demand and supply is higher?
Toofiq Reply
explain standard reason why economic is a science
innocent Reply
factors influencing supply
Petrus Reply
what is economic.
Milan Reply
scares means__________________ends resources. unlimited
Jan
economics is a science that studies human behaviour as a relationship b/w ends and scares means which have alternative uses
Jan
calculate the profit maximizing for demand and supply
Zarshad Reply
Why qualify 28 supplies
Milan
what are explicit costs
Nomsa Reply
out-of-pocket costs for a firm, for example, payments for wages and salaries, rent, or materials
AI-Robot
concepts of supply in microeconomics
David Reply
economic overview notes
Amahle Reply
identify a demand and a supply curve
Salome Reply
i don't know
Parul
there's a difference
Aryan
Demand curve shows that how supply and others conditions affect on demand of a particular thing and what percent demand increase whith increase of supply of goods
Israr
Hi Sir please how do u calculate Cross elastic demand and income elastic demand?
Abari
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




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
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Object-oriented programming (oop) with java' conversation and receive update notifications?

Ask