Question

Create a Java Program to calculate luggage costs.

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

Answer 1

Code:

// import the scanner class to read input from the user
import java.util.Scanner;

public class LuggageCost {

//   method calculateMyBaggageFees takes two parameters passengers and no_bags
//   it calculates the extra cost of the baggage
//   cost for extra bag is 75
//   this function return a double value
   static double calculateMyBaggageFees(int passengers ,int no_bags) {
      
//       calculate the number of free bags
//       we know that each person can have 2 bags so 2*passengers will give free bags
       int free_bags = 2*passengers;
      
//       now calculate the extra bags
//       we know total bags and free bags so subtract it we get extra bags
       int extra_bags =no_bags - free_bags ;
      
//       calculate the cost for extra bags
//       we know cost for one extra bag is 75
       double cost = 75 * extra_bags;
      
//       check if the cost is -ve value
//       if it is negative means there is no extra bags we simply return 0
       if(cost<0) {
          
           return 0;
       }
      
//       else return the cost of the extra bags
       else {
          
           return cost;
       }
   }

   public static void main(String[] args) {
      
//       declare the variables passengers and no_bags
       int passengers , no_bags;
      
//       create an object for scanner to read input from the user
       Scanner in = new Scanner(System.in);
      
//       prompt the user to enter passengers ticket
      
       System.out.print("Enter number of passengers on your ticket: ");
      
//       read the value and store it in passengers
       passengers = in.nextInt();
      
//       prompt the user to enter number of bags for ticket
       System.out.print("Enter number of bags for this ticket: ");
      
//       store the value in no_bags
       no_bags = in.nextInt();
  
//       now call the function calculateMyBaggageFees with passengers and no_bags as parameters
       double result = calculateMyBaggageFees(passengers,no_bags);
  
//       print the result
       System.out.println("The cost for baggage will be $"+result);
   }

}