A firewall is either software or dedicated hardware that exists between the network and the resource being protected. this network security device monitors traffic to or from the network. It is based on set of rules about what data packets will be allowed to enter or leave a network.
Answer:
B
Explanation:
Determining how the user could interact with the app varies person to person, the others are essential to creating apps though.
Answer:
import java.util.Scanner;
public class Supermarket
{
public static void main (String[] args)
{
String item;
double pounds, ounces, price,
total, unit;
Scanner scn = new Scanner(System.in);
System.out.print("Please enter the name of item ");
item = scn.nextLine();
System.out.print("Please enter the price of " + "the item per pound : ");
price = scn.nextDouble();
System.out.print("Enter the weight of " + "the item in pounds and " + "ounces respectively : ");
pounds = scn.nextDouble();
ounces = scn.nextDouble();
unit = price/16;
total = price * (pounds + ounces/16);
System.out.print("The unit price of " + "the products sold is : " + unit);
System.out.print("\nThe total cost of the " + "amount purchased is : " + total);
}
}
Explanation:
- Ask the user to enter the price of the item and the weight.
- Calculate the unit and the total price.
- Display the unit and the total price.
A app that fry’s your Phone or Tablet.
