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internet service provider java coding

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.

I started off with only package A to see if it would work, but it doesn't and I am getting a lot of error messages that I don't understand. What am I doing wrong with this first part?

import java.util.Scanner;

public class InternetPackages

{
	public static void main(String[] args)
	{
		Scanner input = new Scanner(System.in);
      char packageLetter=0;
      int totalHours, regularHours, additionalHours=0;
      double monthlyFee, additionalHoursFee=0, totalFee; 
           
      
      System.out.println("Enter the letter of package purchased (either A, B, or C.");
      System.out.println("Enter the number of hours used"); 
      totalHours = input.nextInt();
      
      
      switch (packageLetter)
      
      
      {
      case 'A':
      case 'a':
      monthlyFee = 9.95;
      regularHours = 10;
      additionalHoursFee = additionalHours * 2.00;
      totalFee = monthlyFee + additionalHoursFee;
      System.out.print ("The total charges is $" + totalFee + ".");
      break;

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kaufmed

What error messages are you receiving?

drunk0ffhate

ASKER

Exception in thread "main" java.util.InputMismatchException
	at java.util.Scanner.throwFor(Scanner.java:909)
	at java.util.Scanner.next(Scanner.java:1530)
	at java.util.Scanner.nextInt(Scanner.java:2160)
	at java.util.Scanner.nextInt(Scanner.java:2119)
	at InternetPackages.main(InternetPackages.java:19)

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After compiling everything it says operation complete, but when I enter the values it gives me those error messages.

kaufmed

Look at lines 4 - 6. Your first prompt asks for a letter, but then it never gets input from the user. It just prints out the next prompt which asks for a number. If you are entering a letter in response to the first prompt, then the first line of code that expects input from the user (line 6) is looking for an integer, not a letter. Add in a line that will accept the input of a letter from the user.

drunk0ffhate

ASKER

Scanner input = new Scanner(System.in);
      char packageLetter=0;
      int totalHours, regularHours, additionalHours=0;
      double monthlyFee, additionalHoursFee=0, totalFee; 
      String inputString;
           
      
      System.out.println("Enter the letter of package purchased (either A, B, or C.");
      packageLetter = inputString.charAt(0);
      System.out.println("Enter the number of hours used"); 
      totalHours = input.nextInt();

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Like this? I changed it but now it says that inputString.charAt(0); hasnt been initialized

kaufmed

How do you get input from the user? (Hint, you're doing it in line 11 of your last post.) Look at the documentation for the Scanner class and determine which method would be appropriate to receive a letter as input.

drunk0ffhate

ASKER

Oh ok, so this is it?

System.out.println("Enter the letter of package purchased (either A, B, or C.");
      packageLetter = input.nextChar();

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It cannot find that symbol though so how would I add that into my coding?

kaufmed

It cannot find that symbol though...

You mean that the IDE does not recognize the nextChar method? If so, what version of Java are you using?

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krakatoa

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kaufmed

So I take it that none of my input was helpful?