Question

Create a Java Program to calculate luggage costs. USING ECLIPSE IDE

The Business Rules are:

A. Two bags per person are free.

B. The Excess Bag Charge is $75 per bag.

The  program needs to do the following:

1. In your main method(),

1.    Create integers to store the number of Passengers and also the total number of bags
2.    Prompt for the number of passengers on a ticket.
3.    Prompt for the total number of bags for all passengers on a ticket.

2. From the main() method:

1. Pass the number of passengers and the number of bags to a value method named "calculateMyBaggageFees". This method needs to determine the number of free bags allowed. A bag count over the free count should be multiplied by the Excess Bag Charge.

3. In the method calculateMyBaggageFees:

1. Using the passed passenger count and bag count, calculate the total excess bag fee and return that amount as a double variable. If the result is negative, return 0.

3. In the main() method, display the cost for baggage. This is only possible if the method calculateMyBaggageFees is a value method.

Example Input/Output

Enter number of passengers on your ticket:2

Enter number of bags for this ticket:5
The cost for baggage will be $75.00

Grading item: Avoid using Magic Numbers

Answer 1

Source code of the program and its working are given below.Comments are also given along with the code for better understanding.Screen shot of the code and output are also attached.If find any difficulty, feel free to ask in comment section. Please do upvote the answer.Thank you.

Working of the program

• Program declare variables to hold number of passengers,number of bags and fee
• Program prompt user to enter number of passengers and total number of bags and read these values into variables
• calculateMyBaggageFees() method is called to calculate luggage fees
• This method find freeBagsAllowed by multiplying number of passenger by 2
• Then excessBagFee is calculated by multiplying excess bags(nBags - freeBagsAllowed) with 75
• If excessBagFee is negative,zero is returned otherwise excessBagFee is returned.
• The result is printed from main() method
• For example if number of passengers are 3 and total bags are 11.Then free bags allowed are 6 (3x2)
• Excess bags are 5 (11-6)
• Excess bag fee is 5x75=375

Source code

//importing Scanner class for handling user input
import java.util.Scanner;
public class Main {

    public static void main(String[] args) {
        //declaring variables for holding values
        int noPassengers, noBags;
        double fee;
        //creating scanner object for reading user input
        Scanner sc = new Scanner(System.in);
        //prompt user to enter number of passengers
        System.out.print("Enter number of passengers on your ticket: ");
        //reading number of passengers
        noPassengers = sc.nextInt();
        //prompt user to enter total number of bags
        System.out.print("Enter number of bags: for this ticket ");
        //reading total number of bags
        noBags = sc.nextInt();
        //calling calculateMyBaggageFees() method
        fee = calculateMyBaggageFees(noPassengers, noBags);
        //printing the result
        System.out.printf("The cost for baggage will be $%.2f", fee);
    }
    //calculateMyBaggageFees() method definition
    public static double calculateMyBaggageFees(int nPassengers, int nBags) {
        //calculating total number of free bags allowed
        int freeBagsAllowed = nPassengers * 2;
        //calculating excessBagFee
        double excessBagFee = (nBags - freeBagsAllowed) * 75;
        //checking if excessBagFee is negative if yes return 0
        if (excessBagFee < 0)
            return 0;
        //else return excessBagFee
        else
            return excessBagFee;
    }
}

Screen shot of the code

Screen shot of the output