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Thread: My output is in the wrong order! (if-else) PLEASE HELP

  1. #1
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    Default My output is in the wrong order! (if-else) PLEASE HELP

    This is the task:
    Task #1 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 customerís 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 (integer) that were used. It should then display the total charges. If an invalid package (other than A, B, or C) or invalid number of hours (<0 or > 30*24) is input, the program should display an appropriate error message and stop.

    So the input must be either 'A', 'B', or 'C' and anything else should send a message saying "invalid input" and not ask me for more info.

    i should be getting:
    Enter the customer's package (A, B, or C): a
    Invalid package. Enter A, B, or C.

    but i get:
    Enter the customer's package (A, B, or C): a
    Enter the number of hours used:
    Invalid package. Enter A, B, or C.

    if the input is invalid, i dont want it to ask me for hours.
    PLEASE HELP!


    heres the code:

    import java.util.Scanner;

    public class TestInternetPart1
    {
    public static void main(String[] args)
    {
    int hours=1;
    double totalCharges;
    int additionalHours;

    // Create a Scanner object to read input
    Scanner keyboard = new Scanner(System.in);

    // Get the letter of the package
    System.out.print("Enter the customer's package (A, B, or C): ");
    String inputLetter = keyboard.nextLine();
    char internetPackage = inputLetter.charAt(0);

    // Get number of hours.
    System.out.print("Enter number of hours: ");
    hours = keyboard.nextInt();

    if (internetPackage == 'A' && hours > 10)
    {
    additionalHours = hours - 10;
    totalCharges = 9.95 + (additionalHours * 2.00);
    System.out.println("Your monthly bill is $" + totalCharges + ".");
    }
    else if (internetPackage == 'A' && hours < 10)
    {
    System.out.println("Your monthly bill is $9.95.");
    }
    else if (internetPackage == 'B' && hours > 20)
    {
    additionalHours = hours - 20;
    totalCharges = 13.95 + (additionalHours * 1.00);
    System.out.println("Your monthly bill is $" + totalCharges + ".");
    }
    else if (internetPackage == 'B' && hours < 20)
    {
    System.out.println("Your monthly bill is $13.95.");
    }
    else if (internetPackage == 'C')
    {
    System.out.println("Your monthly bill is $19.95.");
    }
    else
    System.out.println("Invalid input. Please enter either A, B, or C.");

    System.exit(0);
    }
    }


  2. #2
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    Default Re: My output is in the wrong order! (if-else) PLEASE HELP

    When posting code, please use the highlight tags to preserve formatting. Unformatted code is pretty impossible to read.
    Useful links: How to Ask Questions the Smart Way | Use Code Tags | Java Tutorials
    Static Void Games - Play indie games, learn from game tutorials and source code, upload your own games!

  3. #3
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    Default Re: My output is in the wrong order! (if-else) PLEASE HELP

    After a quick look, my suggestion for you is to go through your code and write out what each line does, kind of like what you did with your comments. You declare you variables, prompt input for package, prompt input for hours, THEN "if" statements that are executed based upon the values of your input.

  4. #4
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    Post Re: My output is in the wrong order! (if-else) PLEASE HELP

    why not first check if internPackage is A or B or C like:
    if(internetPackage == 'A'){
     //todo code here
    } else{
      //todo code here
    }
    After which you can start checking for plan. Although this can make your code a bit much but you can also use switch case (if you're using jdk7);

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    Default Re: My output is in the wrong order! (if-else) PLEASE HELP

    adeloyedeji, please be mindful of post dates. This post is nearing a year old

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