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3 years ago

What is a fire wall and how does it work

Computers and Technology

1 answer:

Ostrovityanka [42]3 years ago

8 0

Answer:

a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules

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Write a calculator program that keeps track of a subtotal like real calculators do. Start by asking the user for an initial numb

Taya2010 [7]

Answer:

num1 = float(input("Enter the first number: "))

while True:

print("Add, Subtract, Multiply, Divide, or Quit ?")

choice = input("Your choice is: ")

if choice == "Quit":

break

num2 = float(input("Enter the second number: "))

if choice == "Add":

num1 += + num2

print("The subtotal is: " + str(num1))

elif choice == "Subtract":

num1 -= num2

print("The subtotal is: " + str(num1))

elif choice == "Multiply":

num1 *= num2

print("The subtotal is: " + str(num1))

elif choice == "Divide":

num1 /= num2

print("The subtotal is: " + str(num1))

print("The final result is: " + str(num1))

Explanation:

Ask the user for the first number

Create a while loop that iterates until specified condition occurs inside the loop

Ask the user for the operation or quitting

If the user chooses quitting, stop the loop. Otherwise, get the second number, perform the operation and print the subtotal

When the loop is done, the user enters Quit, print the final value result

8 0

3 years ago

You work for ScreensRUs, a business that sends repair people to sites to fix damaged car windshields. Your employer provides com

Ede4ka [16]

Answer:

tldr; treat this like a brief essay. some reasons would be "having a smartphone makes your job easier", "smartphones can make the job easier to do on the go".

Explanation:

hi there!

ok, so this should be pretty simple. first, we should take a look at the issue in the scenario; you're an employee for a company that relies heavily on technology to get your job done and send other employees to their customer's locations. because of this, getting poor quality mobile phones would make your job a little bit harder to do.

to put this in a little bit of a better perspective, imagine that you're an employee in a store, and your job is to sweep the floor. however, your boss only gives you a dust pan and bad quality broom. that'd make you wish that you had some better equipment to get your job done faster, right?

a memo is basically a written message in a business place; in modern days, they're usually emails, but back in the day they were letters and such. for this assignment, treat this like an essay! however, be sure to be to-the-point.

now to answer the question; we've already covered one reason that you could use in the memo: "having a smartphone would make your job easier". now think about what else having a smartphone would do compared to a mobile company phone.

here's an example of a memo!

good luck! hope this helped.

5 0

3 years ago

Method: public ArrayList diff(ArrayList list1, ArrayList list2) {} diff() method accepts two ArrayLists of Integer and returns t

babymother [125]

Answer:

(Assuming Java)

public ArrayList diff(ArrayList list1, ArrayList list2) {

ArrayList<Integer> union = new ArrayList<>();

for (int element : list1) {

union.add(element);

}

for (int element : list2){

if (!union.contains(element)) {

union.add(element);

}

return union;

}

Explanation:

Create an ArrayList that has the union of list1 and list2.

First for loop copies all elements into the union array list.

Second for loop adds all elements that are not yet in the union arraylist to the union arraylist.

(Keep in mind that I assume that you mean a mathematical union, so no duplicates. If this is not what you mean, remove the if statement in the second for loop)

5 0

3 years ago

Please Help!

tatyana61 [14]

Answer:

Its B,D,E

Explanation:

Got it right on e2020

5 0

3 years ago

Print "userNum1 is negative." if userNum1 is less than O. End with newline Convert userNum2 to 0 if userNum2 is greater than 8.

Butoxors [25]

Answer:

import java.util.Scanner;

public class num1 {

public static void main(String[] args) {

Scanner in = new Scanner(System.in);

System.out.println("Enter User name 1 and 2");

int userNum1 = in.nextInt();

int userNum2= in.nextInt();

if(userNum1<0){

System.out.println("userNum1 is negative.");

}

else if(userNum2>8){

userNum2 =0;

}

else{

System.out.println("userNum2 is less than or equal to 8..");

}

Explanation:

This is implemented in Java programming language

Using the scanner class, the user is prompted to enter two numbers

These are saved in the variable userNum1 and userNum2 respectively.

If, else if and else statements are then used according to the specifications given in the question.

8 0

4 years ago