in
java
Other exercises - Test of primality: tell if an integer is prime or not
Answers
In Java, primality test is one of the most common exercises, which determines whether an integer is a prime number or not. A prime number is a positive integer greater than one that is only divisible by one and itself, and in contrast, a composite number has more than two factors.
The following are the steps required to test if an integer is prime or not in Java:
Step 1: Take an integer input from the user
Step 2: Check if the given integer is equal to 1. If yes, then return false, as 1 is neither a prime nor a composite number.
Step 3: Check if the given integer is equal to 2 or 3. If yes, then return true, as both 2 and 3 are prime numbers.
Step 4: Check if the given integer is divisible by 2 or 3. If yes, then return false, as all even numbers and multiples of 3 are composite numbers.
Step 5: Check if the given integer is divisible by any odd number greater than 3 and less than or equal to the square root of the given integer.
If yes, then return false, as the number is composite. If no, then return true, as the number is prime.
The code snippet to test if an integer is prime or not in Java is given below:
import java.util.Scanner;
public class PrimeTest {public static void main(String[] args) {Scanner input = new Scanner(System.in);
System.out.print("Enter an integer: ");
int num = input.nextInt();
boolean isPrime = true;
if (num == 1) {isPrime = false;}
else if (num == 2 || num == 3) {isPrime = true;}
else if (num % 2 == 0 || num % 3 == 0) {isPrime = false;}
else {int i = 5;while (i * i <= num) {if (num % i == 0 || num % (i + 2) == 0) {isPrime = false;break;}i += 6;}}
if (isPrime) {System.out.println(num + " is a prime number.");}
else {System.out.println(num + " is not a prime number.");}}
The above code works perfectly and tells if an integer is prime or not.
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Related Questions
in a small town, there are two providers of broadband internet access: a cable company and the phone company. the internet access offered by both providers is of the same speed.
Answers
No, the markets is not competitive because there are not many sellers, and as such, the two providers will be able to dominate the market.
What is competitiveness in the market?A competitive market is known to be a kind of a structure where there is nothing like a single consumer or producer that has the power to make changes to the market.
Note that the response to supply and demand tend to change with the supply curve.
Therefore, my response is No, the markets is not competitive because there are not many sellers, and as such, the two providers will be able to dominate the market.
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Are these markets competitive?
1. In a small town, there are two providers of broadband Internet access: a cable company and the phone company. The Internet access offered by both providers is of the same speed.
matt, a senior technician, has installed a switch for the purpose of identifying devices on the lan. analyze which of the following addressing methods matt should follow so that the switch can quickly and efficiently direct the network traffic to its destination.
Answers
Since Matt, a senior technician, has installed a switch for the purpose of identifying devices on the lan. The addressing methods that Matt should follow so that the switch can quickly and efficiently direct the network traffic to its destination is option A: MAC address.
What is MAC address?This is seen as an exclusive identification code given to a network interface controller to be used as a network address in communications inside a network segment is called a media access control address. Ethernet, Wi-Fi, and Bluetooth are just a few of the IEEE 802 networking technologies that frequently employ this application.
Therefore, in context of the above question, If a switch's mac address table does not contain the destination mac address, it floods the frame to all ports other than the receiving port.
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See full question below
Matt, a senior technician, has installed a switch for the purpose of identifying devices on the LAN. Analyze which of the following addressing methods Matt should follow so that the switch can quickly and efficiently direct the network traffic to its destination.
Transport layer ports
MAC address
IP address
Application layer domain
Individuals are taught how to avoid falling prey to cybercriminals through
End-user education
Cybercrime
Good practice continuity
Network security
Answers
Answer:
I think it's End_user education
Explanation:
A. End - User Education
its Correct.
4.03 Data Analysis
1} You are writing a program to average a student's test scores after discounting the highest and lowest scores. What is the missing code required to produce the correct result?
def find_average(x):
result = /*missing code*/
print(result)
find_average([98, 80, 70, 65, 34, 59, 81])
A) (mean(x) − min(x) − max(x))
B) (mean(x) − min(x) − max(x))/(len(x)−2)
C) (sum(x) − min(x) − max(x))/(len(x)−2)
D) (sum(x) − min(x) − max(x))/len(x)
2} A file "text.csv" contains the following single line: "1X2X3X4X5." What should X be so the code prints "5"?
import csv
with open('text.csv') as csvfile:
text = csv.reader(csvfile, delimiter=",")
for line in text:
print(len(line))
A) 1;2;3;4;5
B) 1.2.3.4.5
C) 1,2,3,4,5
D) 1n2n3n4n5n
Answers
The correct answers are :
(1) C) (sum(x) − min(x) − max(x))/(len(x)−2)
(2) C) 1,2,3,4,5
The missing code required to produce the correct result for averaging a student's test scores after discounting the highest and lowest scores is option C) (sum(x) − min(x) − max(x))/(len(x)−2). This code calculates the average by summing all the scores and subtracting the highest and lowest scores before dividing by the number of scores minus 2. This method ensures that the two outliers do not significantly affect the average.The character X should be replaced with the delimiter "," so that the code reads the file correctly and counts the number of characters in the single line. Option C) 1,2,3,4,5 is the correct replacement for X. The delimiter is used to separate values in a file, and by using "," as the delimiter, the code can correctly read the single line in the file and count the number of characters as 5.To know more about coding visit:
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using a computer application is known as
Answers
Answer:
A computer application is a program that runs on your computer.
Explanation:
How do I add winning conditions to this rock paper scissors code in python? Please keep it simple as I am not allowed to include code we have not learned yet.
import random
choice = input("Enter Rock(R), Paper(P), or Scissors(S): ")
computer = random.randint(1, 3)
if computer == 1:
print("Computer played R.")
elif computer == 2:
print("Computer played P.")
else:
print("Computer played S.")
Answers
Answer:
You wanted simple, but i dodn't know how simple you wanted so I kept it as simple as possible, don't blame me if theres a bug.
Explanation:
import random
choice = input("Enter Rock(R), Paper(P), or Scissors(S): ")
computer = random.randint(1, 3)
if computer == 1 and choice == "R":
print("Computer played Rock.")
print("Tie")
elif computer == 2 and choice == "P":
print("Computer played Paper.")
print("Tie")
elif computer == 3 and choice == "S":
print("Computer played Scissors.")
print("Tie")
elif computer == 1 and choice == "S":
print("Computer played Rock.")
print("You Lose")
elif computer == 2 and choice == "R":
print("Computer played Paper.")
print("You Lose")
elif computer == 3 and choice == "P":
print("Computer played Scissors.")
print("You Lose")
elif computer == 1 and choice == "P":
print("Computer played Rock.")
print("You Win")
elif computer == 2 and choice == "S":
print("Computer played Paper.")
print("You Win")
elif computer == 3 and choice == "R":
print("Computer played Scissor.")
print("You Win")
Draw Lewis structures of the following, giving formal charges where applicable. In each case, the first atom is the central atom. Then give the molecular geometry of the compound and indicate whether it would have a net dipole or not. CBr
2
F
2
NCl
3
2. Draw reasonable resonance structures for SO
3
2−
. Give the average bond length and average charge. 3. Which would you expect to have the biggest dipole: CF
4
or CHF
3
or CH
2
F
2
? Explain your reasoning. 4. Indicate which would best meet the description and explain your reasoning: 3. Strongest base: HSO
4
∘
or HSO
3
∗
Strongest base: PH
2
∗
or NH
2
∗
Answers
CF4 would have the largest dipole moment.This is because CF4 is a tetrahedral molecule with four polar C-F bonds pointing towards the four corners of the tetrahedron.
Which compound among CF4, CHF3, and CH2F2 would have the largest dipole moment?1. Lewis structures and molecular geometry of CBr2F2, NCl3, and molecular dipole:
CBr2F2: The Lewis structure of CBr2F2 consists of a carbon atom in the center bonded to two bromine atoms and two fluorine atoms. The carbon atom has two lone pairs of electrons. The molecular geometry is tetrahedral, and it has a net dipole moment due to the unequal distribution of the electronegativity of the atoms. NCl3: The Lewis structure of NCl3 shows a nitrogen atom in the center bonded to three chlorine atoms. The nitrogen atom has one lone pair of electrons. The molecular geometry is trigonal pyramidal, and it has a net dipole moment due to the asymmetrical arrangement of the chlorine atoms and lone pair.2. Resonance structures, average bond length, and average charge of SO3^2-:
Reasonable resonance structures for SO3^2- include the delocalization of the double bonds between sulfur and oxygen atoms. This results in three equivalent resonance structures. The average bond length of the S-O bonds in SO3^2- is shorter than a single bond but longer than a double bond. The average charge on each oxygen atom is -2/3.
3. Comparing dipole moments of CF4, CHF3, and CH2F2:
Among CF4, CHF3, and CH2F2, CF4 would have the biggest dipole moment. This is because CF4 is a tetrahedral molecule with four polar C-F bonds pointing towards the four corners of the tetrahedron. In contrast, CHF3 and CH2F2 have different molecular geometries that result in the cancellation of dipole moments, making them less polar overall.
4. Determining the strongest base between HSO4^- and HSO3^-:
HSO3^- is the stronger base compared to HSO4^-. This is because HSO3^- can easily donate a proton, forming H2SO3 (sulfurous acid). On the other hand, HSO4^- is a weak base as it requires a more significant loss of a proton to form H2SO4 (sulfuric acid).
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Continuity errors are always going to happen because it’s impossible to catch every mistake before releasing a finished movie?
Answers
Yes, continuity errors are common in movies because it's challenging to catch every mistake before the film's release. While efforts are made to minimize them, some errors inevitably slip through.
Continuity errors occur when there is a lack of consistency in elements such as props, costumes, or settings within a movie. These inconsistencies can result from various factors, including human oversight, budget constraints, or time limitations during filming. Directors, editors, and script supervisors work together to maintain continuity throughout the production process, but even with their best efforts, some errors may still go unnoticed.
Several factors contribute to the prevalence of continuity errors:
1. Multiple takes: Actors perform scenes several times, which may cause slight variations in their positions or actions. Combining different takes in the editing process can lead to discrepancies.
2. Filming out of sequence: Movies are rarely shot in chronological order. Scenes may be filmed weeks or months apart, making it difficult to maintain perfect continuity.
3. Changes in script or set design: Alterations to the script or set during production can introduce inconsistencies if not carefully managed.
4. Human error: Despite having dedicated professionals working on set, mistakes can still happen.
5. Time and budget constraints: Limited resources may prevent filmmakers from reshooting a scene to fix a continuity error.
Ultimately, while filmmakers strive to achieve seamless continuity, it's nearly impossible to catch every single mistake before a movie's release. However, many viewers enjoy spotting these errors, and they rarely detract from the overall film experience.
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Pixar is a company that creates a huge amount of images, audio recordings, and videos, and they need to decide what compression algorithms to use on all those files. When would Pixar most likely use lossless compression
Answers
feels like im getting outta touch, maybe im juust staying inside too much, lately its getting harder to pretend i can do this alone without my friends
Jack knows how to use word processors, spreadsheets, and presentation software. He also has a basic knowledge of hardware, software, and the Internet. Given this information, it can be concluded that Jack has _____ literacy.
Answers
Answer: computer literacy
Given the above information, it can be concluded that Jack has computer literacy.
What is Computer literacy?This is known to be defined as given knowledge and ability that a person has in the area of the use of computers and its related technology in an efficient manner.
Note that Given the above information, it can be concluded that Jack has computer literacy.
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PLEASE HELP WILL GIVE BRAINLIEST
Answers
Answer:
Explanation: answer is b) the row comes first in the element of an index
Write a program in the if statement that sets the variable hours to 10 when the flag variable minimum is set.
Answers
Answer:
I am using normally using conditions it will suit for all programming language
Explanation:
if(minimum){
hours=10
}
Which XXX would replace the missing statement in the given algorithm for rebalancing an AVL tree after a node is removed? AVLTreeRebalance(tree, node) { AVLTreeUpdateHeight(node) XXX
Answers
In the below algorithm, AVLTreeRotation is responsible for checking the balance factor of the node and performing the necessary rotations (single or double) to rebalance the AVL tree after the node has been removed.
In the context of the given algorithm, the missing statement XXX would be a function call to perform rotations on the AVL tree to rebalance it after a node removal. Here's the updated algorithm with the missing statement included:
AVLTreeRebalance(tree, node) {
AVLTreeUpdateHeight(node)
AVLTreeRotation(tree, node)
}
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8.9 Code Practice
Write a program that uses the following initializer list to find if a random value entered by a user is part of that list.
v = [24, 20, 29, 32, 34, 29, 49, 46, 39, 23, 42, 24, 38]
The program should ask the user to enter a value. If the value is in the array, the program should print the index. If it is not in the array, the program should print -1.
Answers
Answer: Here you go, change it however you like :)
Explanation:
v = [24, 20, 29, 32, 34, 29, 49, 46, 39, 23, 42, 24, 38]
usr = int(input("Enter number: "))
print(f"Index: {v.index(usr)}") if usr in v else print(-1)
The program which prints the index value of an enters number is written thus in python 3 ;
v = [24, 20, 29, 32, 34, 29, 49, 46, 39, 23, 42, 24, 38]
#list of values
num = int(input())
#prompts user to enter a value
a = [v.index(num) if num in v else -1]
#checks if number Is in array an stores the index in variable a else it stores - 1
print(a)
#display the value of a
A sample run of the program is attached
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It's important to remember the order in which you removed parts from a system. Thinking back to the steps you just performed, in what order did you remove these parts? a) Expansion cards, drives/power supply, motherboard b) Expansion cards, motherboard, drives/power supply c) Motherboard, expansion cards, drives/power supply d) Drives/power supply, expansion cards, motherboard
Answers
When components of a machine are eliminated, motherboard, extension cards, drives/power source
Why would a motherboard be used?The circuit board specifies the kinds of storage devices, RAM modules, and gpus (among other extension cards) that can attach to your Computer. It also transfers energy from your power source and joins all of your components to your CPU.
What does motherboard mean in one word?The primary printed circuit board (PCB) in a machine is called the motherboard. All components and exterior devices link to a computer's motherboard, which serves as its main communications hub.
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Why are abbreviations like BRB, TBH, and IDK appropriate in some situations but not in others?
Answers
Answer: Depends on which situation
Explanation: When you are talking casually to your friends or someone close to you, it’s appropriate to say those abbreviation. But when you are talking to someone professional or your teacher, you shouldn’t talk in those abbreviations. You should not talk in those abbreviations to elderly because they may not understand it.
An object on the computer use to store data, information and settings is known as?
Answers
Answer:
Hard disk maybe.......
Which of the following best explains how messages are typically transmitted over the Internet? The message is broken into packets that are transmitted in a specified order. Each packet must be received in the order it was sent for the message to be correctly reassembled by the recipient’s device. The message is broken into packets that are transmitted in a specified order. Each packet must be received in the order it was sent for the message to be correctly reassembled by the recipient’s device. A The message is broken into packets. The packets can be received in any order and still be reassembled by the recipient’s device. The message is broken into packets. The packets can be received in any order and still be reassembled by the recipient’s device. B The message is broken into two packets. One packet contains the data to be transmitted and the other packet contains metadata for routing the data to the recipient’s device. The message is broken into two packets. One packet contains the data to be transmitted and the other packet contains metadata for routing the data to the recipient’s device. C The message is transmitted as a single file and received in whole by the recipient’s device.
Answers
Answer:
A The message is broken into packets. The packets can be received in any order and still be reassembled by the recipient’s device. The message is broken into packets. The packets can be received in any order and still be reassembled by the recipient’s device.
Explanation:
Network packets are used to send data across a network. These can be routed in any order independently of one another as they will all eventually reach their destination device.
Which type of computer/IT architecture is limited to a central computer system?
a) Mainframe
b) Web-services
c) Peer-to-peer
d) Wireless
e) Server-to-server
Answers
The type of computer/IT architecture that is limited to a central computer system is Mainframe. Therefore the correct option is option A.
Computer Architecture is the design of computer components such as processor and memory, along with their interconnections, in order to achieve an optimum balance of performance, speed, and cost-effectiveness.
The different types of computer architectures are: Centralized architecture Distributed architecture Hybrid architecture Centralized architecture is a type of architecture that is restricted to a central computer system.
This architecture is often used in mainframe computers, where the central computer is a large, powerful machine that is shared by many users at once. Thus, the answer is Mainframe.
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A standard method for labeling digital files is called a file-labeling what? question 5 options: protocol tool setting configuration
Answers
A standard method for labeling digital files is called option A: file-labeling protocol.
What are three file naming conventions?An outline for naming your files in a way that pass out their contents and their relationships to other files is known as a file naming convention. File naming conventions make it simpler to recognize your files and help you stay organized. You can discover what you need quickly by constantly arranging your files.
Therefore, the three file naming patterns are;
Dashes (e.g. file-name. yyy) (e.g. file-name. yyy)No division (e.g. filename. yyy )Camel case, which capitalizes the initial letter of each block of text (e.g. File Name. yyy )Learn more about file-labeling from
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Answer:
protocol
Explanation:
TOOK THE TEST 6.03 quiz 7th grade
A mouse that emits and sense light to detect its movement is called an _______________ mouse.
Answers
Explanation:
optical mouse:
uses devices that emit and sense light to detect the mouse's movement
Which statement accurately describes microblogs? Multiple Choice They are a tool to configure the dashboard on a social software system. They are a collection of knowledge sharing pages that anyone can edit. They should not be used for broadcasting announcements. They contain just a few sentences per entry. They are individual entries on bigger blogs.
Answers
The statement that accurately describes microblogs is: "They contain just a few sentences per entry." So correct answer is D
Microblogs are a type of social media platform that allow users to share short and concise messages, typically containing just a few sentences per entry. These messages can be about a wide range of topics and can include text, images, or videos. Microblogs are often used as a way to communicate with a large audience in a quick and easy manner.
Out of the multiple-choice options provided, the statement that accurately describes microblogs is that they contain just a few sentences per entry. This is because microblogs are designed to be brief and to-the-point, making them ideal for sharing quick updates, thoughts, or ideas with others.
While microblogs can be used for a variety of purposes, they are typically not used for broadcasting announcements, as this type of content is often better suited for other social media platforms that allow for more detailed and comprehensive messaging.
Microblogs are also not a tool to configure the dashboard on a social software system, nor are they a collection of knowledge sharing pages that anyone can edit. These descriptions are more representative of other types of social media platforms, such as wikis or collaborative tools.
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A material systems developer typically combines the skills of a programmer with the multitasking expectations of a
.
Answers
Explanation:
Material systems developer typically combines the skills of a programmer with the multitasking expectations of developing 3 dimensional models of objects, enhancing the graphical effects.
don't delete my answer this time i try to help ppl
a random number, created by nextint() method of the random class, is always a(n) . question 10 options: a) object b) integer c) float d) class
Answers
It is true that a random number, created by nextint() method of the random class, is always a(n). The NextInt() function returns the following uniformly distributed int value generated by this random number generator.
From the series of this random number generator, NextInt(Int32) returns a pseudorandom, uniformly distributed int value between 0 (inclusive) and the given value (exclusive).
The utility value of creating random numbers is high, and doing so through the use of a function can be very beneficial. Given the significance of random numbers in everyday programming, Java offers a whole library devoted to them. The nextInt() method of the java.util. Random class is used to retrieve the subsequent random integer value from this generator's series.
Declaration :
public int nextInt()
Parameters : NA
Return Value : returns next integer number from the series
Exception : NA
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Which of the following strategies will help you to stay focused and on topic while writing your essay?
a. Outlining
c. Neither 'a' nor 'b'
b. The 5 paragraph format
d. Both 'a' and 'b'
Please select the best answer from the choices provided
A
B
Ο Ο Ο Ο
D
Answers
Answer:
the answer is D,both A and B
Answer:
The answer is D. i give full credit to the person above me who got it right
Explanation:
Tysm
A user submitted a support ticket that states all of the printouts from a laser printer appear to have double images imposed on them. A review of past printer support tickets shows that a maintenance kit has not been installed in more than a year. Which of the following printer consumables is MOST likely causing the issue?
A. Separation pad
B. Transfer roller
C. Ink cartridge
D. Fuser
Answers
The fact that a maintenance kit has not been installed in over a year is also a clue that the fuser may be the cause of the problem. Maintenance kits typically include replacement parts for the fuser, such as a fuser roller or heating element, which can wear out over time and cause printing issues.
Therefore, the correct answer is D. Fuser.
Option d is correct, Fuser is the printer consumables which is most likely causing the issue.
The issue described, where printouts have double images imposed on them, is a common symptom of a faulty fuser in a laser printer.
The fuser is responsible for bonding toner to the paper, and if it is not functioning properly, it can cause double images or smudging on the printouts.
Given the lack of maintenance kit installation for over a year, it is highly likely that the fuser needs to be replaced or repaired.
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2. Which pattern microphone should Jennifer take to the press conference? Jennifer is a journalist with one of the leading newspapers in LA. She has been assigned the coverage of a press conference for the launch of a latest phone. She placed her microphone right in front of the speaker. Her boss had asked her to take a ______ microphone.
Answers
Answer:
dynamic
Explanation:
What are the names of the methods which are used to control an i/o device??.
Answers
Answer: 1
Explanation:
i took the quiz and it was correct
Select the correct navigational path to use a saved chart template,
Select the range of cells
Click the tab on the ribbon and look in the
Click the dialog box launcher and then the
select the one you want to use, and click OK
Answers
Answer:
Insert, Charts, All charts, Templates
Explanation:
I just did this assignment
The correct navigational path to use a saved chart template is select the range of cells, Click the insert tab on the ribbon and look in the. Click the dialog box launcher and then the chart tab, select the one template you want to use, and click OK.
What is chart template?A chart template is a file that contains the colors, layout, formatting, and other settings of a previously created chart that can be reused later.
It essentially allows you to reapply the same chart parameters to both new and existing graphs with a few clicks, saving you from having to recreate it each time.
A template is a form, mold, or pattern that is used as a guide to create something. Here are some template examples: Design of a website. Making a document
To use a saved chart template, select the range of cells, then click the insert tab on the ribbon and look in the.
Click the dialog box launcher, then the chart tab, choose a template, and then click OK.
Thus, this is the correct navigation path.
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Carmen printed her PowerPoint presentation at home. Her mom was angry because Carmen used 20 pieces of paper and all the color ink. What option did Carmen most likely use to print
her presentation?
Print full page slides print handouts. Print note pages or print options will give Brainliest ANSWER
Answers
Answer:
She used 1 sided and color
Explanation:
those are the options she used
Carmen printed her PowerPoint presentation at home. Her mom was angry because Carmen used 20 pieces of paper and all the colored ink. She used 1 side and color.
What is the printer?A printer is a device that receives the text and graphic output from a computer and prints the data on paper, typically on sheets of paper that are standard size, 8.5" by 11". The size, speed, sophistication, and price of printers vary.
One of the more frequent computer peripherals is the printer, which may be divided into two types: 2D printers and 3D printers. While 3D printers are used to produce three-dimensional physical items, 2D printers are used to print text and graphics on paper.
Therefore, at home, Carmen printed out her PowerPoint presentation. Carmen used 20 pieces of paper and all the color ink, which made her mother furious. She used color and one-sided.
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