Question

wirte a program in java

Part I     Internet Service Provider

An Internet service provider has three different subscription packages for its customers:

Package A: For $9.95 per month 10 hours of access are provided. Additional hours

are $2.00 per hour.

Package B: For $13.95 per month 20 hours of access are provided. Additional hours

are $1.00 per hour.

Package C: For $19.95 per month unlimited access is provided.

Write a program that calculates a customer’s monthly bill. It should ask the user to enter

the letter of the package the customer has purchased (A, B, or C) and the number of hours

that were used. It should then display the total charges.

Part 2   Internet Service Provider

Modify the program you wrote for Programming in part 1 so it also calculates and

displays the amount of money Package A customers would save if they purchased Package

B or C, and the amount of money Package B customers would save if they purchased Package If there would be no savings, no message should be printed.

use printf for output and no arrays

Answer 1

`Hey,

Note: Brother in case of any queries, just comment in box I would be very happy to assist all your queries

import java.util.Scanner;

public class ServiceCalculator {
   public static void main(String[] args) {

       // scanner to read data from user
       Scanner sc = new Scanner(System.in);
       char Package;
       double hoursUsed;
       double monthlyBill = 0;
       // starting infinite loop to get valid inputs from user
       while (true) {

           // reading type of package from user
           System.out.print("Enter Package (A/B/C) :");
           Package = sc.next().charAt(0);
           // reading data from user
           System.out.print("Enter number of hours used :");
           hoursUsed = sc.nextDouble();
           // checking if inputs are valid than comes out of the loop
           if ((Package == 'A' || Package == 'B' || Package == 'C') && (hoursUsed >= 0 && hoursUsed <= 50)) {
               break;
           } else {
               System.out.println("\nInvalid Input\n\nEnter the details again\n--------------------");
           }
       }
       // starting to switch to calculate based user selected package
       switch (Package) {
       // if selected type is A
       case 'A':
           // checking if user used less than 5 GB else calculating additional charges
           if (hoursUsed <= 10) {
               monthlyBill = 9.95;
           } else {
               monthlyBill = 9.95 + ((hoursUsed -10) * 2);
           }
           break;
       case 'B':
           // checking if user used less than 10 GB else calculating additional charges
           if (hoursUsed <= 10) {
               monthlyBill = 13.95;
           } else {
               monthlyBill = 13.95 + ((hoursUsed - 20) * 1);
           }
           break;
       case 'C':
           monthlyBill = 19.95;
           break;
       }
       System.out.printf("\nMonthly bill = $%.2f\n", monthlyBill);
       // based on usage suggesting Package type for user
      
   }
}

2)

import java.io.*;
import java.util.Scanner;
import java.text.DecimalFormat;

class InternetProviderPart2
{
public static void main(String[] args)
{
int hours;
double packageA_amount,
packageB_amount,packageC_amount;
double total_amount=0;
DecimalFormat formatter =
new DecimalFormat(" 0.00");

Scanner keyboard = new Scanner(System.in);


System.out.println("Enter hours:");
hours=keyboard.nextInt();



if(hours<10)
packageA_amount=9.95;
else
packageA_amount=9.95+((hours-10)*2);

if(hours<20)
packageB_amount=14.95;
else
packageB_amount=14.95+((hours-20)*1);

packageC_amount=19.95;

double difference;
difference=packageA_amount- packageB_amount;
System.out.println("Package A customer would save $"
+formatter.format(difference)+ " than Package B");
difference=packageA_amount - packageC_amount;
System.out.println("Package A customer would save $"
+formatter.format(difference)+ " than Package C");
difference=packageB_amount - packageC_amount;
System.out.println("Package B customer would save $"
+formatter.format(difference)+ " than Package C");

System.exit(0);
}
}

Kindly revert for any queries

Thanks.