I get an error message on my code below. How can I fix it?
import java.util.Scanner;
public class CelsiusToFahrenheit {
public static void main (String [] args) {
Scanner scnr = new Scanner(System.in);
double tempF;
double tempC;
System.out.println("Enter temperature in Celsius: ");
tempC = scnr.nextDouble();
System.out.print("Fahrenheit: ");
System.out.println(tempF);
return;
}
}
CelsiusToFahrenheit.java:16: error: variable tempF might not have been initialized
System.out.println(tempF);
^
1 error
Answers
Answer:
tempF = (tempC * 1.8) + 32;
Explanation:
Required
Correct the error in the program
The error is due to tempF not been initialized or being calculated
Correct the error by writing the formula for tempF before tempF was printed
tempF = (tempC * 1.8) + 32;
Writing the formula ensures that tempF is initialized with the expected equivalent value for tempC
Related Questions
Explain how loops can be utilized in list processing. Please provide Python examples in your response.
Answers
Answer:
data = [0,1,2,3,4]
for i in range(4):
print(data[i])
i+=1
Explanation:
Loops can be utilized in a listing process by looping back to a list with a variable while the loop increases that variable to give a different response from the list.
A university is using a drone to collect information about all cars parked in
its campus lots that do not have a current parking pass. All without a
current/valid parking pass will receive a warning in the mail. The drone's
video requires complex processing in order to determine the violator
make/model and license number. What is the BEST method to use to
process the video?
O Cloud computing
Edge computing
Fog computing
Route aggregation
Answers
The correct option is the second one, edge computing.
What is the best method to use to process the video?Edge computing involves processing data at or near the source of data generation, which in this case is the drone collecting video footage. By performing the video processing on the drone itself or in a nearby edge server, it reduces the need for transmitting large amounts of data to a remote server or cloud for processing.
Processing the video data locally using edge computing offers several advantages. It reduces latency and network congestion since the processing is done closer to the data source. It also improves real-time analysis and response, as the drone can quickly determine the violator make/model and license number on-site without the need for extensive data transfer.
In contrast, cloud computing involves sending the video data to a remote server for processing, which may introduce latency and dependency on network connectivity. Fog computing is a variant of edge computing that extends the edge computing capabilities to a broader network area, but in this case, local processing with edge computing is sufficient. Route aggregation is unrelated to video processing and is a technique used in networking to optimize network traffic.
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how do you fill different data into different cells at a time in Excel
Answers
The way that you fill different data into different cells at a time in Excel are:
Click on one or a lot of cells that you want to make use of as the basis that is needed for filling additional cells. For a set such as 1, 2, 3, 4, 5..., make sure to type 1 and 2 into the 1st two cells. Then pull the fill handle .If required, select Auto Fill Options. and select the option you want.How do you make a group of cells auto-fill?The first thing to do is to place the mouse pointer over the cell's bottom right corner and hold it there until a black + symbol appears. Drag the + symbol over the cells you wish to fill in while clicking and holding down the left mouse button. Additionally, the AutoFill tool rightly fills up the series for you.
Note that Excel data entering can be automated and this can be done by: On the Data tab, select "Data Validation," then click "Data Validation." In the Allow box, select "List." Enter your list items in the Source box, separating them with commas. To add the list, click "OK." If you wish to copy the list along the column, use the Fill Handle.
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Create a recursive procedure named (accumulator oddsum next). The procedure will return the sum of the odd numbers entered from the keyboard. The procedure will read a sequence of numbers from the keyboard, where parameter oddsum will keep track of the sum from the odd numbers entered so far and parameter next will (read) the next number from the keyboard.
Answers
Answer:
Explanation:
The following procedure is written in Python. It takes the next argument, checks if it is an odd number and if so it adds it to oddsum. Then it asks the user for a new number from the keyboard and calls the accumulator procedure/function again using that number. If any even number is passed the function terminates and returns the value of oddsum.
def accumulator(next, oddsum = 0):
if (next % 2) != 0:
oddsum += next
newNext = int(input("Enter new number: "))
return accumulator(newNext, oddsum)
else:
return oddsum
role of the computer for the development of a country
Answers
Computers have a transformative impact on the development of a country by driving economic growth, revolutionizing education, fostering innovation, improving governance, and promoting connectivity.
Economic Growth: Computers play a crucial role in driving economic growth by enabling automation, streamlining processes, and increasing productivity. They facilitate efficient data management, analysis, and decision-making, leading to improved business operations and competitiveness.
Education and Skills Development: Computers have revolutionized education by providing access to vast amounts of information and resources. They enhance learning experiences through multimedia content, online courses, and virtual simulations.
Innovation and Research: Computers serve as powerful tools for innovation and research. They enable scientists, engineers, and researchers to analyze complex data, simulate experiments, and develop advanced technologies.
High-performance computing and artificial intelligence are driving breakthroughs in various fields, such as medicine, energy, and engineering.
Communication and Connectivity: Computers and the internet have revolutionized communication, enabling instant global connectivity. They facilitate real-time collaboration, information sharing, and networking opportunities. This connectivity enhances trade, international relations, and cultural exchange.
Governance and Public Services: Computers play a vital role in improving governance and public service delivery. They enable efficient data management, e-governance systems, and digital platforms for citizen engagement. Computers also support public utilities, healthcare systems, transportation, and security infrastructure.
Job Creation: The computer industry itself creates jobs, ranging from hardware manufacturing to software development and IT services. Moreover, computers have catalyzed the growth of other industries, creating employment opportunities in sectors such as e-commerce, digital marketing, and software engineering.
Empowerment and Inclusion: Computers have the potential to bridge the digital divide and empower marginalized communities. They provide access to information, educational opportunities, and economic resources, enabling socio-economic inclusion and empowerment.
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what do u mean by server ?
Answers
Are there measures that organizations and the U.S. government can take together to prevent both real-world terrorist violence and cyberattacks?
Answers
For a quick analysis of the individual amenities, you will add Sparklines.
In cell range H5:H11, add Column Sparklines that chart the advertising expense by amenity type over the months January to June.
Apply the style Dark Blue Sparkline Style Accent 5, Darker 50%.
Answers
See how to utilise sparklines to represent your data visually and demonstrate data trends. Use check marks to draw attention to certain values in the Sparkline chart.
What do Excel sparklines serve?Sparklines are tiny graphs that show data graphically in spreadsheet cells. Sparklines can be used to draw attention to the highest and lowest values as well as patterns in a variety of values, such as seasonal peaks or valleys or business cycles. A sparkline should be placed as close as possible to its data.
What kind of sparklines are these?Sparklines come in three varieties: Line: creates a line graph out of the data. Similar to a clustered column chart, column: visualises data as columns. Win/Loss: This method uses colour to represent the data as either positive or negative.
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Please can someone help me with this AB + A+B
Answers
Answer:
Please specify the question, but I assume this is boolean algebra so the answer would be:
A + B
Explanation:
AB + A + B
Now we are solving the above expression using Boolean theorems:
Factoring
(1+B)A+(1+A)B
Identity Law A+1=1
1A+(1+A)B
Identity Law:A.1=1
A+(1+A)B
Identity Law A+1=1
A+1B
Identity Law:A.1=1
A+B
In Javascript implement a function deepEqual that takes two arguments
const student1 = { name: 'Harvey', age: 23 };
const student2 = { name: 'Harvey', age: 23 };
and returns
• true if the arguments are deep equal (as defined below)
• false if the arguments are not deep equal.
This function must handle values of the following types:
1. Numbers
2. Boolean values
3. Strings
4. null values
5. undefined values
6. Objects, including arrays
Definition of Deep Equality
if two values are both objects and are not strictly equal, then we determine deep equality as follows
Answers
The six primitive types of the provided arguments—string, number, undefined, boolean, and symbol—are deep equal to what is defined.
What does JavaScript mean in plain English?JavaScript is a programming language that lets you do just about everything, including creating dynamically updated content and managing multimedia.
What, for instance, is utilized with JavaScript?JavaScript is mostly used to create web-based applications. JavaScript can be used to enhance web pages with interactive features like moving into and out or streaming audio and video. The most well-known examples of companies making mobile and web apps are Netflix and Uber.
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While you can save files on OneDrive, you're unable to share them with
other people.
True
False
Answers
Answer:
I think it's false, hope this helps.
1.
Consider the following Java statements.
1
2.
int a = 5;
int b = 3;
int c = 4;
C = a + b 3
3
4
What is the value of c after these lines execute?
Enter answer here
Answers
Answer:
2. in the a= 5
Explanation:
dhjhff jogs KFC lol f kids
Using do while loop,write a program that will input numbers and display the count of odd numbers.(c++ programming)
Output:
Enter a number:30,17,22,9,14
Odd numbers found:2
Even numbers found:3
Answers
Answer:
#include <iostream>
using namespace std;
int main()
{
// Declare variables to store the number input by the user and the count of odd and even numbers
int number, oddCount = 0, evenCount = 0;
// Use a do-while loop to input numbers until the user enters a negative number
do
{
cout << "Enter a number: ";
cin >> number;
// Increment the count of odd numbers if the input number is odd
if (number % 2 == 1)
{
oddCount++;
}
// Increment the count of even numbers if the input number is even
else if (number % 2 == 0)
{
evenCount++;
}
}
while (number >= 0);
// Print the count of odd and even numbers
cout << "Odd numbers found: " << oddCount << endl;
cout << "Even numbers found: " << evenCount << endl;
return 0;
}
Explanation:
This program will prompt the user to enter a number, and it will continue to input numbers until the user enters a negative number. For each number that is input, the program will increment the count of odd numbers if the number is odd, or the count of even numbers if the number is even. Finally, the program will print the count of odd and even numbers.
Here is an example of the output you would see if you ran this program:
Enter a number: 30
Enter a number: 17
Enter a number: 22
Enter a number: 9
Enter a number: 14
Enter a number: -5
Odd numbers found: 2
Even numbers found: 3
Do you think the divide will fade in time. Write your opinion.
Answers
Hello. Your question is incomplete and without context, which makes it impossible for it to be satisfactory and satisfactory. However, I will try to help you in the best possible way.
For you to have an opinion on whether the division may disappear over time, you must analyze the composition of that division and how it was created, based on this analysis, you can reflect on whether the composition of the division in the environment in which it is located is likely to be temporary, or if it is impossible to determine the period of time for which it will remain active.
Which telecommunications service allow Internet and telephone service services to work over the same phone line
Answers
Answer:
VoIP
Explanation:
Voice over Internet Protocol
Answer:
DSL
Explanation:
I took the test and got it right.
Write a program that will create a student database using dictionary.
The database will store studentId, and name. The studentId will be key and name will be value for the dictionary.
The text file will have the studentID and student name, which are separated by comma(,). The program will read the file and populate the dictionary. The studentID will be the key and name will be the value.
The program will ask the user to enter a studenID. It will search the dictionary. If found, it will display the name; otherwise, it will say, “Student Not found” (LOOK AT PIC BELOW PLS, PYTHON)
Answers
Hello, below are the codes I wrote in Python. I defined each function and its purpose by explaining them with comments. Feel free to ask me any questions or clarifications if you get stuck or don't understand anything. Additionally, you can see the data I used in the images I added below, and you can revise it according to your own needs.
Python:
#Import regex library
import re
#Check the user prompt if the student ID is legal.
def getStringData(prompt):
return "Y" if(re.match(r'^[A-Z]\d[A-Z]\d$', prompt)) else "N"
#Reading data from "data.txt" and parsing to the dictionary.
def readData(data):
return {temp.split(',')[0]: temp.split(',')[1].strip() for temp in open(data).readlines()}
#Searching on database and print if found.
def displayResult(id, database):
return (f"Name: {database[id]}") if(id in database) else "Student not found on database."
def main():
#Load "data.txt" first.
database = readData("data.txt")
while(True):
#Get user input.
prompt = input("\nEnter student ID (Press 'n' to quit.): ")
if prompt.lower() == 'n':
break
#Check if input is valid student ID.
if getStringData(prompt) == "N":
print("Invalid student ID.")
continue
#Fetch result.
print(displayResult(prompt, database))
if __name__ == "__main__":
main()
Design a program that prompts the user to enter a number within the range of 1 through 10. The program should display the Roman numeral version of that number. If the number is outside the range of 1 through 10, the program should display an error message.write a pseudocode and draw a flow chart using the right diagrams and shapes
Answers
Answer:
Pseudocode:
Prompt the user to enter a number between 1 and 10
Read the input from the user
If the input is between 1 and 10, continue to step 4. Otherwise, display an error message and end the program.
Create an array of roman numerals I, II, III, IV, V, VI, VII, VIII, IX, X
Subtract 1 from the input number and use it as an index to retrieve the corresponding roman numeral from the array
Display the roman numeral to the user
End the program
Flowchart:
[Start] --> [Prompt user to enter a number] --> [Read input]
--> {input between 1 and 10?}
--> [Create array of roman numerals]
--> [Subtract 1 from input and use as index to retrieve corresponding roman numeral]
--> [Display roman numeral to user] --> [End]
--> [Display error message and end] --> [End]
Explanation:
PART 1: What's with ABCD's?
Directions: Read and analyze the statement carefully. Choose the BEST answer
and write the letter only in your answer sheet.
1. Which finger lies on the Space Bar when using the Home Row Position?
a. Thumb b. Index Finger c. Middle Finger d. Ring Finger
2. What do we call the position that we need to touch in typing?
a. Upper Keys/ Lower Keys
c. Function Keys
b. Command Keys
d. Home Row Position
3. What are the letters that your fingers in your LEFT hand touching?
a. ASDF b. ASDFG
c. H J K L ;
d. J K L ;
4. What are the letters that your fingers in your RIGHT hand touching?
a. ASDF b. ASDFG
d. JKL ;
c. H J K L ;
5. What letter lies on in your LITTLE finger in your LEFT hand?
a. A
b. F
c. J
d. ;
6. What letter lies on in your LITTLE finger in your RIGHT hand?
a. A
b. F
C. J
d. ;
7. To double click the mouse, what finger should you use?
a. Thumb b. Index
c. Middle
d. Ring
8. What should you click in order to capitalize a Letter?
a. ALT
b. Control
c. Caps Lock
d. Shift
9. Which statements support the function of the Backspace key in the
keyboard?
a. It saves a file
b. It capitalizes a letter
10. What can you say about a Home
a. Base Position in typing
Both A and B
c. It erases a text
d. None of the Above
Row Position?
c. First Position in Typing b.
d. Any of the Above
Answers
ABCD's refer to the Home Row Position in typing, which is the foundation of touch typing. This position involves placing your fingers on the ASDF and JKL; keys on the keyboard, which are located in the middle row and form a diagonal line. The fingers of the left hand should rest on the ASDF keys, while the fingers of the right hand should rest on the JKL; keys. This position allows for quick and efficient typing, as it centers your fingers and allows you to easily reach all the other keys on the keyboard.
In addition to the Home Row Position, there are other key concepts to keep in mind when typing. For example, the Space Bar is located underneath the thumbs and is used to create spaces between words. The Shift key is used to capitalize letters, while the Backspace key is used to erase mistakes. The mouse is also an important tool in typing, and double clicking is done with the index finger.
Overall, it is important to have a solid understanding of the Home Row Position and other basic concepts in typing in order to become a proficient typist. Practice and repetition are also important in developing good typing skills.
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Number the steps to describe how Tristan can complete
this task.
Cut the Television and related equipment row.
Paste the Television and related equipment row.
Click the plus sign on the left side of the table between
the last two rows.
Answers
Answer:
Cut the Television and related equipment row.Click the plus sign on the left side of the table between the last two rows.Paste the Television and related equipment row.Explanation:
In order to move the row, Tristan should first select the row and then cut it. This will ensure that the row will be moved completely instead of copied.
Tristan should then hover with the mouse between the last two rows and click on the plus sign on the left side. It will add a new row to the sheet. between the last two rows.
Tristan should then select the topmost cell and click paste. The television row will be pasted there and Tristan would have successfully moved it.
Answer:
2 3 1 Your Welcome
Explanation:
Which of the following is not a recognized cabling type for horizontal cabling as per the ANSI/TIA standards?A) STPB) Fiber optic cableC) UTPD) Patch cable
Answers
UTP, STP, and fibre optics are recognised by TIA/EIA; coaxial is not.
Which of the following doesn't qualify as a backbone cable according to the TIA?It should be noted that the ANSI/TIA-568-C version of the standard does not recognise coaxial cabling. The wall outlet, also known as the telecommunications outlet, is where the horizontal cable terminates in the work area. Users and communication devices are connected to the structured-cable infrastructure in the work area.
What is the longest horizontal cable that can be used?The horizontal separation must not exceed 76 metres (250 feet). Cable trays are the recommended method for distributing the horizontal wire from the telecommunications room to the communication outlets because they make cable installation simple and allow for future extension in hallways or significant distribution routes.
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How did the use of ARPANET change computing?
Scientists were able to communicate over large distances.
Scientists could use computers that had different operating systems.
Computers no longer had to be wired to a main computer to communicate.
Scientists were able to connect to the World Wide Web through ARPANET.
Answers
The use of ARPANET changed computing because:
Scientists were able to communicate over large distances.Scientists could use computers that had different operating systems.Computers no longer had to be wired to the main computer to communicate.ARPANET was developed by the United States Advanced Research Projects Agency. The main reason for the creation of ARPANET was to make it easier for people to be able to access computers. Also, it was vital as it helped improve computer equipment and was a vital method for communication in the military.Furthermore, it helped in communicating over large distances and ensured that scientists could use computers that had different operating systems.In conclusion, it was also vital as computers no longer had to be wired before they can communicate.
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Answer:
A B and C
Explanation:
Scientists were able to communicate over large distances.
Scientists could use computers that had different operating systems.
Computers no longer had to be wired to a main computer to communicate.
is a colon (:) and semicolon (;) important in CSS declaration?
Answers
Answer:
YES
Explanation:
this is very important
Describe what the 4th I.R. Means; and List the 4 most Important Variables of the How the 4th I.R. will change the lives of how we would Live and Work?
Answers
Answer:
The Fourth Industrial Revolution (4IR) is the ongoing transformation of the traditional manufacturing and industrial sectors through the integration of advanced technologies such as artificial intelligence, the Internet of Things (IoT), robotics, big data, and automation.
The four most important variables that will change the way we live and work in the 4IR are:
Automation: The increased use of robotics and automation will revolutionize the manufacturing industry and lead to more efficient and cost-effective production processes. This could lead to significant job displacement, but it could also create new opportunities for workers with new skills.
Big Data: The collection and analysis of massive amounts of data will allow businesses to gain new insights into customer behavior, supply chain efficiency, and product performance. This could lead to more personalized and efficient services, but also raise concerns around privacy and data security.
Artificial Intelligence: The use of advanced algorithms and machine learning will enable machines to perform complex tasks previously thought to require human intelligence. This could lead to more efficient and effective decision-making, but also raise concerns around the impact on jobs and the ethical implications of AI decision-making.
Internet of Things: The proliferation of connected devices will enable the automation and integration of various systems and processes, leading to more efficient and effective resource utilization. This could lead to significant improvements in healthcare, transportation, and energy management, but also raise concerns around privacy and security risks.
Overall, the 4IR is expected to bring significant changes to our economy, society, and daily lives, with both opportunities and challenges that we will need to navigate as we move forward.
bills is replacing a worn-cut cable to his power table saw.what type of cable is he most likely using ?
A.PSC
B.SO
C.CS
D.HPD
Answers
Bill is replacing a worn-cut cable for his power table saw. is using is A. PSC (Portable Cord).
What is the bills?Working with frayed cables can be dangerous and may act as a form of a risk of electric shock or other hazards. To make a safe and successful cable replacement, there are some general steps Bill can follow.
A is the most probable type of cable he is utilizing from the provided choices. A type of cord that can be easily carried or moved around. Flexible and durable, portable cords are frequently utilized for portable power tools and equipment.
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i dont know the answer
Answers
Answer:
Explanation:
Me too.
The following Queue is being represented by a circular representation in an array (front is currently 3, and back is currently 7).
0 1 2 3 4 5 6 7 8 9
6 11 24 56 77
F E
Show what this representation would look like after performing the following sequence of operations. (show where is the Font and where is the End after each operation).
a) enq(q, 79) 0 1 2 3 4 5 6 7 8 9.
b) enq(q, 50) 0 1 2 3 4 5 6 7 8 9.
c) enq(q, 45) 0 1 2 3 4 5 6 7 8 9.
d) deq(q, i) 0 1 2 3 4 5 6 7 8 9 10.
Answers
Which type of metal will rust - ferrous or non-ferrous?
Answers
Explanation:
Ferrous metals contain IRON ... which will rust (form Iron oxide)
Suppose I want to query for all column content in the Accounts table (i.e. first name, last name and password). What would be typed into the input field?
Answers
Suppose one needs to query for all column content in the Accounts table (i.e. first name, last name and password), What should be typed into the input field is:
SELECT first_name, last_name, password FROM Accounts;
What is the rationale for the above answer?It is to be noted that the above query retrieves the values for the columns "first_name", "last_name", and "password" from the table named "Accounts". The "SELECT" keyword is used to specify the columns that you want to retrieve, and the "FROM" clause specifies the table from which you want to retrieve the data.
The semicolon at the end of the query is used to terminate the statement.
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design the logic for a program that allows a user to enter a number. display the sum of every number from 1 through the entered number
Answers
Answer: int sum = 1, n;
do {cin>>n; sum+=n;}while (n!=0);
cout<<sum;
Explanation:
1. A network administrator was to implement a solution that will allow authorized traffic, deny unauthorized traffic and ensure that appropriate ports are being used for a number of TCP and UDP protocols.
Which of the following network controls would meet these requirements?
a) Stateful Firewall
b) Web Security Gateway
c) URL Filter
d) Proxy Server
e) Web Application Firewall
Answer:
Why:
2. The security administrator has noticed cars parking just outside of the building fence line.
Which of the following security measures can the administrator use to help protect the company's WiFi network against war driving? (Select TWO)
a) Create a honeynet
b) Reduce beacon rate
c) Add false SSIDs
d) Change antenna placement
e) Adjust power level controls
f) Implement a warning banner
Answer:
Why:
3. A wireless network consists of an _____ or router that receives, forwards and transmits data, and one or more devices, called_____, such as computers or printers, that communicate with the access point.
a) Stations, Access Point
b) Access Point, Stations
c) Stations, SSID
d) Access Point, SSID
Answer:
Why:
4. A technician suspects that a system has been compromised. The technician reviews the following log entry:
WARNING- hash mismatch: C:\Window\SysWOW64\user32.dll
WARNING- hash mismatch: C:\Window\SysWOW64\kernel32.dll
Based solely ono the above information, which of the following types of malware is MOST likely installed on the system?
a) Rootkit
b) Ransomware
c) Trojan
d) Backdoor
Answer:
Why:
5. An instructor is teaching a hands-on wireless security class and needs to configure a test access point to show students an attack on a weak protocol.
Which of the following configurations should the instructor implement?
a) WPA2
b) WPA
c) EAP
d) WEP
Answer:
Why:
Answers
Network controls that would meet the requirements is option a) Stateful Firewall
Security measures to protect against war driving: b) Reduce beacon rate and e) Adjust power level controlsComponents of a wireless network option b) Access Point, StationsType of malware most likely installed based on log entry option a) RootkitConfiguration to demonstrate an attack on a weak protocol optio d) WEPWhat is the statement about?A stateful firewall authorizes established connections and blocks suspicious traffic, while enforcing appropriate TCP and UDP ports.
A log entry with hash mismatch for system files suggest a rootkit is installed. To show a weak protocol attack, use WEP on the access point as it is an outdated and weak wireless network security protocol.
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