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Answer 10

Question 11

True or False? The execution of a Java application begins and ends in the method named main .

Answer 11

Question 12

True or False? The two commands shown in Listing 4 can be used to compile and execute a Java application named Prob01 where:

  • The only special class library required is contained in the folder named bookClasses .
  • The path from the root to the folder named bookClasses is represented by ---\bookClasses.
Listing 4 . Question 12.
javac -cp .;---\bookClasses Prob01.java java -cp .;---\bookClasses Prob01

Answer 12

Question 13

True or False? The Java compiler program is named java.exe .

Answer 13

Question 14

True or False? The Prob01.java and Prob01 at the ends of the two commands in Listing 4 specify the files being operated on by the virtual machine and the compilerrespectively.

Answer 14

Question 15

True or False? In Listing 4 , the -cp indicates that a classpath follows.

Answer 15

Question 16

True or False? A classpath consists of one or more path specifications separated by semicolon characters.

Answer 16

Question 17

True or False? The purpose of the classpath in Listing 4 is to tell the compiler and the virtual machine where to look for source codefiles that the application needs in order to successfully compile and execute.

Answer 17

Question 18

True or False? The period ahead of the semicolon in Listing 4 says to search the root folder first.

Answer 18

Question 19

True or False? The first statement in the body of the main method in Listing 1 instantiates a new object of the class named Prob01Runner .

Answer 19

Question 20

True or False? The first statement in Listing 1 saves a reference to a new object of the class named Prob01Runner in a reference variable named obj . In general, the type of the variable must be:

  • The name of the object, or
  • The name of a superclass of the object, or
  • The name of an interface implemented by the object.

Answer 20

Question 21

True or False? In Java, you must save a reference to a newly instantiated object in order to gain access to that object later in the program.

Answer 21

Question 22

True or False? The second statement in the body of the main method in Listing 1 uses the reference stored in the variable named obj to call the method named run encapsulated in the object referred to by the contents of obj .

Answer 22

Question 23

True or False? The following three methods that are called in Listing 1 are of a type that is commonly referred to as accessor methods . They are also sometimes referred to by the slang term getter methods .

  • getMars
  • getJoe
  • getSue

Answer 23

Question 24

True or False? The method named println that is called in Listing 1 is a member of Ericson's multimedia library. The purpose of the println method is to display text on an image.

Answer 24

Question 25

True or False? Java uses four access modifiers to specify the accessibility of various classes and members in a Java application:

  • public
  • private
  • protected
  • package-private

Answer 25

Question 26

True or False? Listing 5 shows the beginning of a class named Prob01Runner .

Listing 5 . Question 26.
class Prob01Runner{ //Instantiate the World and Turtle objects.private World mars = new World(300,274); private Turtle joe = new Turtle(mars);private Turtle sue = new Turtle(mars);

Questions & Answers

what is math number
Tric Reply
x-2y+3z=-3 2x-y+z=7 -x+3y-z=6
Sidiki Reply
Need help solving this problem (2/7)^-2
Simone Reply
x+2y-z=7
Sidiki
what is the coefficient of -4×
Mehri Reply
-1
Shedrak
the operation * is x * y =x + y/ 1+(x × y) show if the operation is commutative if x × y is not equal to -1
Alfred Reply
An investment account was opened with an initial deposit of $9,600 and earns 7.4% interest, compounded continuously. How much will the account be worth after 15 years?
Kala Reply
lim x to infinity e^1-e^-1/log(1+x)
given eccentricity and a point find the equiation
Moses Reply
12, 17, 22.... 25th term
Alexandra Reply
12, 17, 22.... 25th term
Akash
College algebra is really hard?
Shirleen Reply
Absolutely, for me. My problems with math started in First grade...involving a nun Sister Anastasia, bad vision, talking & getting expelled from Catholic school. When it comes to math I just can't focus and all I can hear is our family silverware banging and clanging on the pink Formica table.
Carole
I'm 13 and I understand it great
AJ
I am 1 year old but I can do it! 1+1=2 proof very hard for me though.
Atone
hi
Adu
Not really they are just easy concepts which can be understood if you have great basics. I am 14 I understood them easily.
Vedant
hi vedant can u help me with some assignments
Solomon
find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
I know this work
salma
The given of f(x=x-2. then what is the value of this f(3) 5f(x+1)
virgelyn Reply
hmm well what is the answer
Abhi
If f(x) = x-2 then, f(3) when 5f(x+1) 5((3-2)+1) 5(1+1) 5(2) 10
Augustine
how do they get the third part x = (32)5/4
kinnecy Reply
make 5/4 into a mixed number, make that a decimal, and then multiply 32 by the decimal 5/4 turns out to be
AJ
how
Sheref
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
hmm
Abhi
is it a question of log
Abhi
🤔.
Abhi
I rally confuse this number And equations too I need exactly help
salma
But this is not salma it's Faiza live in lousvile Ky I garbage this so I am going collage with JCTC that the of the collage thank you my friends
salma
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
hii
Uday
hi
salma
hi
Ayuba
Hello
opoku
hi
Ali
greetings from Iran
Ali
salut. from Algeria
Bach
hi
Nharnhar
A soccer field is a rectangle 130 meters wide and 110 meters long. The coach asks players to run from one corner to the other corner diagonally across. What is that distance, to the nearest tenths place.
Kimberly Reply
Jeannette has $5 and $10 bills in her wallet. The number of fives is three more than six times the number of tens. Let t represent the number of tens. Write an expression for the number of fives.
August Reply
What is the expressiin for seven less than four times the number of nickels
Leonardo Reply
How do i figure this problem out.
how do you translate this in Algebraic Expressions
linda Reply
why surface tension is zero at critical temperature
Shanjida
I think if critical temperature denote high temperature then a liquid stats boils that time the water stats to evaporate so some moles of h2o to up and due to high temp the bonding break they have low density so it can be a reason
s.
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
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit 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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