Explain why you have to import JOptionPane but not the Math class​

Answers

Answer 1

Answer:

To provide standard dialog boxes such as message dialog box, confirm dialog box and input dialog box.

Answer 2

In Java, the import statement is used to include classes or packages from outside sources in your code. This lets you access and use the features of those classes or packages.

What is the JOptionPane

To do the above, You need to import JOptionPane in Java because it belongs to a different package from the Math class.

The Math class is a part of the java. lang package, which is automatically included in Java. This package has important classes and interfaces that are used in Java programs. Because the Math class is already included in this package, you don't have to import it separately.

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Related Questions

Write a program that reads in 10 numbers from the user and stores them in a 1D array of size 10. Then, write BubbleSort to sort that array – continuously pushing the largest elements to the right side

Answers

Answer:

The solution is provided in the explanation section.

Detailed explanation is provided using comments within the code

Explanation:

import java.util.*;

public class Main {

//The Bubble sort method

public static void bb_Sort(int[] arr) {  

   int n = 10; //Length of array  

   int temp = 0; // create a temporal variable  

   for(int i=0; i < n; i++){  

         for(int j=1; j < (n-i); j++){  

           if(arr[j-1] > arr[j]){  

               // The bubble sort algorithm swaps elements  

               temp = arr[j-1];  

               arr[j-1] = arr[j];  

               arr[j] = temp;  

             }  

         }            

         }  

        }

 public static void main(String[] args) {

   //declaring the array of integers

   int [] array = new int[10];

   //Prompt user to add elements into the array

   Scanner in = new Scanner(System.in);

   //Use for loop to receive all 10 elements

   for(int i = 0; i<array.length; i++){

     System.out.println("Enter the next array Element");

     array[i] = in.nextInt();

   }

   //Print the array elements before bubble sort

   System.out.println("The Array before bubble sort");

   System.out.println(Arrays.toString(array));

   //Call bubble sort method

   bb_Sort(array);  

               

   System.out.println("Array After Bubble Sort");  

   System.out.println(Arrays.toString(array));

 }

}

Write a program that simulates flipping a coin to make decisions. The input is how many decisions are needed, and the output is either heads or tails. Assume the input is a value greater than 0.

Answers

Answer:

import random

decisions = int(input("How many decisions: "))

for i in range(decisions):

   number = random.randint(0, 1)

   if number == 0:

       print("heads")

   else:

       print("tails")

Explanation:

*The code is in Python.

import the random to be able to generate random numbers

Ask the user to enter the number of decisions

Create a for loop that iterates number of decisions times. For each round; generate a number between 0 and 1 using the randint() method. Check the number. If it is equal to 0, print "heads". Otherwise, print "tails"

A _____ is a smaller image of a slide.

template
toolbar
thumbnail
pane

Answers

I believe it is pane since a thumbnail is like a main photo or advertising photo kind of thing and template has nothing to do with a image as well as toolbar so the answer would be pane hope that helps :)

Read the following code:


x = 1

while(x < 26)

print(x)

x = x + 1


There is an error in the while loop. What should be fixed?


1. Add a colon to the end of the statement

2. Begin the statement with the keyword count

3. Change the parentheses around the test condition to quotation marks

4. Use quotation marks around the relational operator

Answers

This is python code.

In python, you are supposed to put a colon at the end of while loops. This code does not have a colon after the while loop, therefore, you need to add a colon to the end of the statement.

The error to be fixed in the while loop is to add a colon at the end of the while statements.

x = 1

while (x<26)

     print(x)

     x = x + 1

This is the right code;

x = 1

while(x < 26):

   print(x)

   x = x + 1

The actual code , the while statement is missing a colon at the end of it.

The code is written in python. In python while or for loops statements always ends with a colon.

In the error code, there was no colon at the end of the while loop.

The right codes which I have written will print the value 1 to 25.

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Need help with coding.
I'm trying to input a list that uses int(input("Element: ")) and it's causing an error. Anything to help with this?

Answers

You could try something likes this.

lst = []

n = int(input("Number of elements: ))

for i in range(0, n):

element = int(input("Element: "))

lst.append(element)

Which of the following is NOT a period of the Middle Ages?
Early Middle Ages
O Late Middle Ages
O High Middle Ages
O New Middle Ages
allowing is NOT an artifact of the Information Age?

Answers

High middle ages is the answer

The one that is not a period of the Middle Ages is the High Middle Ages. The correct option is c.

What are different ages?

The Middle Ages, which roughly correspond to the years 500 to 1400–1500 BCE, is the term used to describe this time of European history. The phrase was initially used by academics in the 15th century to refer to the time frame between their own era and the dissolution of the Western Roman Empire.

The period between the fall of Imperial Rome and the start of Early Modern Europe is referred to as the “Middle Ages” for this reason. The reason the Middle Ages are known as the Dark Ages is that life was hard and brief in Europe, and contrasted with the orderliness of classical antiquity.

The time period in European history from roughly 500 AD to 1500 AD. This time period's early years are commonly referred to as the Dark Ages.

Therefore, the correct option is c, High Middle Ages.

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Select the correct answers.
What are examples of real-time applications?
A.) news updates
B.) blog posts
C.) stock market values
D.) email
E.) online money transfers

Answers

Answer:

B

Explanation:

you can post blog updates in real time as things happen

Answer: Stock market values and news updates

Explanation: These are things that you can follow in real time and that happen in real time (think of something like a livestream)

PLATO/EDMENTUM

Which of the following is true of how packets are sent through the internet?

Answers

Answer:

It is A: Packet metadata is used to route and reassemble information travelling  through the internet.

Explanation:

Step 1: The Internet works by chopping data into chunks called packets. Each packet then moves through the network in a series of hops. Each packet hops to a local Internet service provider (ISP), a company that offers access to the network -- usually for a fee

Step 2: Entering the network

Each packet hops to a local Internet service provider (ISP), a company that offers access to the network -- usually for a fee.

Step 3: Taking flight

The next hop delivers the packet to a long-haul provider, one of the airlines of cyberspace that quickly carrying data across the world.

Step 4: BGP

These providers use the Border Gateway Protocol to find a route across the many individual networks that together form the Internet.

Step 5: Finding a route

This journey often takes several more hops, which are plotted out one by one as the data packet moves across the Internet.

Step 6: Bad information

For the system to work properly, the BGP information shared among routers cannot contain lies or errors that might cause a packet to go off track – or get lost altogether.

Last step: Arrival

The final hop takes a packet to the recipient, which reassembles all of the packets into a coherent message. A separate message goes back through the network confirming successful delivery.

What is his resolution amount

Answers

I think it’s 92 I mean yh

(1) Prompt the user to enter a string of their choosing. Output the string.
Ex: Enter a sentence or phrase: The only thing we have to fear is fear itself. You entered: The only thing we have to fear is fear itself.
(2) Complete the GetNumOfCharacters() function, which returns the number of characters in the user's string. Use a for loop in this function for practice. (2 pts)
(3) In main(), call the GetNumOfCharacters() function and then output the returned result. (1 pt) (4) Implement the OutputWithoutWhitespace() function. OutputWithoutWhitespace() outputs the string's characters except for whitespace (spaces, tabs). Note: A tab is '\t'. Call the OutputWithoutWhitespace() function in main(). (2 pts)
Ex: Enter a sentence or phrase: The only thing we have to fear is fear itself. You entered: The only thing we have to fear is fear itself. Number of characters: 46 String with no whitespace: The only thing we have to fear is fear itself.

Answers

Answer:

See solution below

See comments for explanations

Explanation:

import java.util.*;

class Main {

 public static void main(String[] args) {

   //PrompT the User to enter a String

   System.out.println("Enter a sentence or phrase: ");

   //Receiving the string entered with the Scanner Object

   Scanner input = new Scanner (System.in);

   String string_input = input.nextLine();

   //Print out string entered by user

   System.out.println("You entered: "+string_input);

   //Call the first method (GetNumOfCharacters)

   System.out.println("Number of characters: "+ GetNumOfCharacters(string_input));

   //Call the second method (OutputWithoutWhitespace)

   System.out.println("String with no whitespace: "+OutputWithoutWhitespace(string_input));

   }

 //Create the method GetNumOfCharacters

   public static int GetNumOfCharacters (String word) {

   //Variable to hold number of characters

   int noOfCharactersCount = 0;

   //Use a for loop to iterate the entire string

   for(int i = 0; i< word.length(); i++){

     //Increase th number of characters each time

     noOfCharactersCount++;

   }

   return noOfCharactersCount;

 }

 //Creating the OutputWithoutWhitespace() method

 //This method will remove all tabs and spaces from the original string

 public static String OutputWithoutWhitespace(String word){

   //Use the replaceAll all method of strings to replace all whitespaces

   String stringWithoutWhiteSpace = word.replaceAll(" ","");

   return stringWithoutWhiteSpace;

 }

}

B1:B4 is a search table or a lookup value

Answers

Answer:

lookup value

Explanation:

Plz answer me will mark as brainliest ​

Answers

Answer:

True

Operating System

Booting

Find the maximum value and minimum value in milesTracker. Assign the maximum value to maxMiles, and the minimum value to minMiles. Sample output for the given program:
Min miles: -10
Max miles: 40
Here's what I have so far:
import java.util.Scanner;
public class ArraysKeyValue {
public static void main (String [] args) {
final int NUM_ROWS = 2;
final int NUM_COLS = 2;
int [][] milesTracker = new int[NUM_ROWS][NUM_COLS];
int i = 0;
int j = 0;
int maxMiles = 0; // Assign with first element in milesTracker before loop
int minMiles = 0; // Assign with first element in milesTracker before loop
milesTracker[0][0] = -10;
milesTracker[0][1] = 20;
milesTracker[1][0] = 30;
milesTracker[1][1] = 40;
//edit from here
for(i = 0; i < NUM_ROWS; ++i){
for(j = 0; j < NUM_COLS; ++j){
if(milesTracker[i][j] > maxMiles){
maxMiles = milesTracker[i][j];
}
}
}
for(i = 0; i < NUM_ROWS; ++i){
for(j = 0; j < NUM_COLS; ++j){
if(milesTracker[i][j] < minMiles){
minMiles = milesTracker[i][j];
}
}
}
//edit to here
System.out.println("Min miles: " + minMiles);
System.out.println("Max miles: " + maxMiles);
}

Answers

Answer: 40, 4

Explanation:

Jason works as a financial investment advisor. He collects financial data from clients, processes the data online to calculate the risks associated with future investment decisions, and offers his clients real-time information immediately. Which type of data processing is Jason following in the transaction processing system?

A.
online decision support system
B.
online transaction processing
C.
online office support processing
D.
online batch processing
E.
online executive processing

Answers

I believe the answer is A. because he has to listen to what the people tell him and he information he has to think about and make a choice on what to reply with.

I hope this helps and its correct please let me know if its wrong have a great day//night.

Plz answer me will mark as brainliest ​

Answers

Answer:

7. true

8.B

Hopefully those are correct!

Explanation:

Jason works as a financial investment advisor. He collects financial data from clients, processes the data online to calculate the risks associated with future investment decisions, and offers his clients real-time information immediately. Which type of data processing is Jason following in the transaction processing system?

A.
online decision support system
B.
online transaction processing
C.
online office support processing
D.
online batch processing
E.
online executive processing

Answers

Answer:

The answer to this question is given below in the explanation section.

Explanation:

The correct answer to this question is online decision support system. Because the decision support systems process the data, evaluate and predict the decision, and helps the decision-makers,  and offer real time information immediately in making the decision in an organization. So the correct answer to this question is the decision supports system.

Why other options are not correct

Because the transaction processing system can only process the transaction and have not the capability to make the decision for the future. Office support processing system support office work, while the batch processing system process the task into the batch without user involvement.   however, online executive processing does not make decisions and offer timely information to decision-makers in an organization.

Which function is used to display a string value to the screen?
main[]
print()
run=
SHOW!

Answers

Answer:

The correct answer to this question is given below in the explanation section.

Explanation:

in most programming languages, the print() function is used to display a string value to the screen. Because, the print function prints all the string given in it as a parameter.

for example: to print hello world.

we use the function to print hello world as print("hello world").

However, it noted that other options are not correct because the main() function is an entry point of a program and it does not print string value to the screen. while run and show function do not print string value of screen also.

Answer:

in python print()

Given four values representing counts of quarters, dimes, nickels and pennies, output the total amount as dollars and cents. Output each floating-point value with two digits after the decimal point, which can be achieved as follows: System.out.printf("Amount: $%.2f\n", dollars); Ex: If the input is: 4 3 2 1 where 4 is the number of quarters, 3 is the number of dimes, 2 is the number of nickels, and 1 is the number of pennies, the output is: Amount: $1.41 For simplicity, assume input is non-negative.
LAB ACTIVITY 2.32.1: LAB: Convert to dollars 0/10 LabProgram.java Load default template. 1 import java.util.Scanner; 2 3 public class LabProgram 4 public static void main(String[] args) { 5 Scanner scnr = new Scanner(System.in); 6 7 /* Type your code here. */|| 8 9) Develop mode Submit mode Run your program as often as you'd like, before submitting for grading. Below, type any needed input values in the first box, then click Run program and observe the program's output in the second box Enter program input (optional) If your code requires input values, provide them here. Run program Input (from above) 1 LabProgram.java (Your program) Output (shown below) Program output displayed here

Answers

Answer:

The corrected program is:

import java.util.Scanner;

public class LabProgram{

public static void main(String[] args) {

Scanner scnr = new Scanner(System.in);

int qtr, dime, nickel, penny;

double dollars;

System.out.print("Quarters: ");

qtr =scnr.nextInt();

System.out.print("Dimes: ");

dime = scnr.nextInt();

System.out.print("Nickel: ");

nickel = scnr.nextInt();

System.out.print("Penny: ");

penny = scnr.nextInt();

dollars = qtr * 0.25 + dime * 0.1 + nickel * 0.05 + penny * 0.01;

System.out.printf("Amount: $%.2f\n", dollars);

System.out.print((dollars * 100)+" cents");

}

}

Explanation:

I've added the full program as an attachment where I used comments as explanation

What is the maximum number of VLANs that can be configured on a switch supporting the 802.1Q protocol? Why?

Answers

Answer:

4096 VLANs

Explanation:

A VLAN (virtual LAN) is a group of devices on one or more LAN connected to each other without physical connections. VLANs help reduce collisions.

An 802.1Q Ethernet frame header has VLAN ID of 12 bit VLAN field. Hence the maximum number of possible VLAN ID is 4096 (2¹²).  This means that a switch supporting the 802.1Q protocol can have a maximum of 4096 VLANs

A lot of VLANs ID are supported by a switch. The maximum number of VLANs that can be configured on a switch supporting the 802.1Q protocol is 4,094 VLANS.

All the VLAN needs an ID that is given by the VID field as stated in the IEEE 802.1Q specification. The VID field is known to be of  12 bits giving a total of 4,096 combinations.

But that of 0x000 and 0xFFF are set apart. This therefore makes or leaves it as 4,094 possible VLANS limits. Under IEEE 802.1Q, the maximum number of VLANs that is found on an Ethernet network is 4,094.

Learn more about VLANs from

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My Mac is stuck on this screen? How to fix?

Answers

Answer:

Press and hold the power button for up to 10 seconds, until your Mac turns off. If that doesn't work, try using a cellular device to contact Apple Support.

Explanation:

If that also doesn't work try click the following keys altogether:

(press Command-Control-Eject on your keyboard)

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

This makes the laptop (macOS) instruct to restart immediately.

Hopefully this helps! If you need any additional help, feel free and don't hesitate to comment here or private message me!. Have a nice day/night! :))))

Another Tip:

(Press the shift, control, and option keys at the same time. While you are pressing those keys, also hold the power button along with that.)

(For at least 10 seconds)

5-5. Design an Ethernet network to connect a single client P C to a single server. Both the client and the server will connect to their workgroup switches via U T P. The two devices are 900 meters apart. They need to communicate at 800 M b p s. Your design will specify the locations of any switches and the transmission link between the switches.


5-6. Add to your design in the previous question. Add another client next to the first client. Both connect to the same switch. This second client will also communicate with the server and will also need 800 M b p s in transmission speed. Again, your design will specify the locations of switches and the transmission link between the switches.

Answers

Answer:

ok so u have take the 5 and put 6

Explanation:

5-5. Ethernet network design: UTP connections from client PC and server to workgroup switches, 900m fiber optic link between switches, 800 Mbps communication.

5-6. Additional client connects to the same switch, UTP connection, maintains existing fiber optic link, 800 Mbps communication with the server.

What is the explanation for this?

5-5. For connecting a single client PC to a single server, both located 900 meters apart and requiring communication at 800 Mbps, the following Ethernet network design can be implemented:

- Client PC and server connect to their respective workgroup switches via UTP.

- Use fiber optic cables for the 900-meter transmission link between the switches.

- Install switches at the client PC and server locations.

- Ensure that the switches support at least 1 Gbps Ethernet speeds to accommodate the required transmission speed.

5-6. In addition to the previous design, for adding another client next to the first client:

- Connect both clients to the same switch.

- Use UTP cables to connect the second client to the switch.

- Ensure the switch supports 1 Gbps Ethernet speeds.

- Maintain the existing fiber optic transmission link between the switches.

- The second client can also communicate with the server at the required 800 Mbps transmission speed.

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the language is Java! please help

Answers

public class Drive {

   int miles;

   int gas;

   String carType;

   public String getGas(){

       return Integer.toBinaryString(gas);

   }

   public Drive(String driveCarType){

       carType = driveCarType;

   }

   public static void main(String [] args){

       System.out.println("Hello World!");

   }

   

}

I'm pretty new to Java myself, but I think this is what you wanted. I hope this helps!

What are two examples of items in Outlook?

a task and a calendar entry
an e-mail message and an e-mail address
an e-mail address and a button
a button and a tool bar

Answers

Answer:

a task and a calendar entry

Explanation:

ITS RIGHT

Answer:

its A) a task and a calendar entry

Explanation:

correct on e2020

The Beaufort Wind Scale is used to characterize the strength of winds. The scale uses integer values and goes from a force of 0, which is no wind, up to 12, which is a hurricane. The following script first generates a random force value. Then, it prints a message regarding what type of wind that force represents, using a switch statement. If random number generated is 0, then print "there is no wind", if 1 to 6 then print "this is a breeze", if 7 to 9 "this is a gale", if 10 to 11 print "this is a storm", if 12 print "this is a hurricane!". (Hint: use range or multiple values in case statements like case {1,2,3,4,5,6})

Required:
Re-write this switch statement as one nested if-else statement that accomplishes exactly the same thing. You may use else and/or elseif clauses.

ranforce = randi([0, 12]);
switch ranforce
case 0
disp('There is no wind')
case {1,2,3,4,5,6}
disp('There is a breeze')
case {7,8,9}
disp('This is a gale')
case {10,11}
disp('It is a storm')
case 12
disp('Hello, Hurricane!')
end

Answers

Answer:

The equivalent if statements is:

ranforce = randi([0, 12]);

if (ranforce == 0)

     disp('There is no wind')

else  if(ranforce>0 && ranforce <7)

     disp('There is a breeze')

else  if(ranforce>6 && ranforce <10)

     disp('This is a gale')

else  if(ranforce>9 && ranforce <12)

     disp('It is a storm')

else  if(ranforce==12)

     disp('Hello, Hurricane!')

end

Explanation:

The solution is straight forward.

All you need to do is to replace the case statements with corresponding if or else if statements as shown in the answer section

Write code that prints: Ready! numVal ... 2 1 Start! Your code should contain a for loop. Print a newline after each number and after each line of text Ex: numVal

Answers

Answer:

Written in Python

numVal = int(input("Input: "))

for i in range(numVal,0,-1):

    print(i)

print("Ready!")

Explanation:

This line prompts user for numVal

numVal = int(input("Input: "))

This line iterates from numVal to 1

for i in range(numVal,0,-1):

This line prints digits in descending order

    print(i)

This line prints the string "Ready!"

print("Ready!")

In Microsoft windows which of the following typically happens by default when I file is double clicked

Answers

Answer:

when a file is double clicked it opens so you can see the file.

Explanation:

Kara's teacher asked her to create a chart with horizontal bars. Which chart or graph should she use?

Bar graph
Column chart
Line graph
Pie chart

Answers

Answer:

The answer to this question is given below in the explanation section.

Explanation:

The correct answer to this question is the Bar graph.

Because we use this chart type to visually compare values across a few categories when the charts show duration or when the category text is long.

However, we can present information similarly in the bar graph and in column charts, but if you want to create a chart with the horizontal bar then you must use the Bar graph. In an Excel sheet, you can easily draw a bar graph and can format the bar graph into a 2-d bar and 3-d bar chart.

A column chart is used to compare values across a few categories. You can present values in columns and into vertical bars.

A line graph chart is used to show trends over months, years, and decades, etc.

Pie Chart is used to show a proportion of a whole. You can use the Pie chart when the total of your numbers is 100%.

Answer:

Bar graph option A

Explanation:

I did the test

On what date was jschlatt originally added to the dreamsmp server, and on which date was his second appearance on the server?

Answers

since this has already been answered, who is your favorite SMP character?

mines Wilbur/ Ghostbur

some people will disagree with me but jshlatt is one of my favorite characters on the dream smp . But my all time favorite characters is ALL of Wilbur's characters

The fraction 460/7 is closest to which of the following whole numbers?

Answers

I don’t see any of “the following numbers”

Jason works as a financial investment advisor. He collects financial data from clients, processes the data online to calculate the risks associated with future investment decisions, and offers his clients real-time information immediately. Which type of data processing is Jason following in the transaction processing system?

A.
online decision support system
B.
online transaction processing
C.
online office support processing
D.
online batch processing
E.
online executive processing

Answers

Answer:

The answer to this question is given below in the explanation section.

Explanation:

The correct answer to this question is an online decision support system. Because the decision support systems process the data, evaluate and predict the decision, and helps the decision-makers,  and offer real-time information immediately in making the decision in an organization. So the correct answer to this question is the decision supports system.

Why other options are not correct

Because the transaction processing system can only process the transaction and have not the capability to make the decision for the future. Office support processing system support office work, while the batch processing system process the task into the batch without user involvement.   however, online executive processing does not make decisions and offer timely information to decision-makers in an organization.

Answer: the answer is A.

Explanation: He has to listen to what the people tell him and think about the information he has and make a choice on what to reply with.

Other Questions
Which one? A. B. C. Or D. PLease help thanks legit only!!!!!!!!!!!!! Plz help meeeeeeeeeeeeeeeeeee ahhhhhhhhh what is the mathematical sentence of "the length of wooden frame is 1foot longer than it's width and it's area is equal to 12ft" can you translate it into quadratic equation in terms of "x"? PLEEAASSEE HEELLPP MEE I NEED THIS ANSWER TO FINISH THE LAST QUESTION!!!! The helium that fills a balloon is an example of which state of matter? (1 point) aSolid bLiquid cGas dPlasma helllo if ANYONE is going threw something then come to me ill try my best to help u all A square patio has an area of 107 square feet. How long is each side of the patio to the nearest tenth? The deliberate irony Orwell uses is called doublespeak, which is when words are used not to convey meaning but to undermine it corrupting the very ideas that they refer to. "War is Peace" is one of 1984's doublespeak slogans. WHAT ARE THE OTHER TWO DOUBLESPEAK SLOGANS? * A mug is 3/7 full. The mug contains 1/2 cup of water. Find the capacity of the mug In genetic engineeringAscientists add or change the genes on a chromosome.Bnatural selection is used to determine which traits to keep or eliminate.Cdominant and recessive genes are mixed together randomly.Dmitosis divides a cell into two equal parts. Which equation has the solution x = 9?Select each correct answer.+7= 84+ 5x = 1881 3 = 62x 3 = 1524 2x = 133x + 2 = 25 What is a pathway for an atom (carbon) what is 58+34 any one know? The Farmers Market sells apples by the bushel, and each bushel of apples weighs 42 lbs. A bushel of large apples contains 84 apples. If a bushel of small apples contains twice as many apples as a bushel of large apples, how many small apples are in 1 lb. of small apples? Its says show work A tendency to overestimate the extent to which a stranger's violent behavior stems from his or her aggressive personality BEST illustrates the _____ error. What is the electoral college Mike has $800 in his bank account. Over the last 5 years, the amount in his account has went down to $300. What integer represents the average decrease in value PER YEAR? The Qur'an is believed to be the word of God, transmitted through the Prophetanswer both maybe please What are some reasons students go into college with limited knowledge about sex?