Question

Problem Statement:
Chip’s Snack Bar sells chips ($1), soda ($1.25), hot dogs ($2) and coffee ($0.75).
Both Seniors (i.e., age >= 62) and Students are eligible for a 10% discount.
Seniors are not charged for coffee (regardless of the number ordered).
All sales are taxed at a rate of 6%.
Write a Java program to do the following:
1. Read in an order from the keyboard ( which contains the student status
[y/n], user age, number of chips, number of sodas, number of hot dogs, and
number of coffees, in that order), all on separate lines. The program should
display prompts to the user as shown in the sample interaction.
2. Display a message repeating the customer’s order.
3. Calculate and display the subtotal of the order BEFORE discounts and taxes
are applied.
4. Calculate the discount and taxes and display them. The tax should be
calculated AFTER the discounts have been applied.
5. Calculate and display the final total and thank the user.

Requirements:
In addition to fulfilling the interaction described above your program must also
…
1. Have the main class named ‘CashRegister’
2. Make use of constant variables SENIOR_AGE, DISCOUNT_RATE and
TAX_RATE.
3. Save intermediate calculations (e.g., subtotal, tax, etc.) in appropriately
named variables.
4. Read the input from keyboard.
5. Display the output in a manner consistent with sample interaction described
below.

Are you a student [y/n]? What is your age? 20 How many bags of chips would you like? How many sodas would you like? How many hot dogs would you like? How many cups of coffee would you like? Order summary .I 1 bags of chips 1 sodas 1 hot dogs 1 cups of coffee Subtotal: 5.0 Discount: 0.5 Tax: 0.27 Total: 4.77 Thank you for your order!

This is the output for a 20 year old student who ordered 1 chip, 1 sodas, 1 hot dog and 1 coffees.

Do not worry if you show more or fewer decimal places with the results.

Answer 1

CODE :

import java.util.Scanner;

public class CashRegister {

   public static void main(String[] args) {

       int chipsCost = 1;
       float sodaCost = 1.25f;
       int hotdogsCost = 2;
       float coffeeCost = 0.75f;
       double subtotal = 0;
       int SENIOR_AGE = 62;
       int DISCOUNT_RATE = 10;
       int TAX_RATE = 6;

       Scanner sc = new Scanner(System.in);

       System.out.println("Are you a student [Y/N]");
       char student = sc.next().charAt(0);
       System.out.println("What is your age ?");

       int age = sc.nextInt();
       System.out.println("How many bags of chips would you like ?");

       int chipsCount = sc.nextInt();

       double totalchips = chipsCost * chipsCount;

       System.out.println("How many sodas would you like ?");

       int sodasCount = sc.nextInt();

       double totalSodas = sodaCost * sodasCount;
       System.out.println("How many hotdogs would you like ?");

       int hotdogsCount = sc.nextInt();

       double totalHotdogs = hotdogsCost * hotdogsCount;
       System.out.println("How many cups of coffee would you like ?");

       int coffeesCount = sc.nextInt();
       double totalCoffees;

       if (age < SENIOR_AGE) {

           totalCoffees = coffeeCost * coffeesCount;
       } else {
           totalCoffees = 0;

       }

       System.out.println("Order Summary . . . .");

       System.out.println(chipsCount + " bags of chips ");
       System.out.println(sodasCount + " sodas");
       System.out.println(hotdogsCount + " hot dogs");
       System.out.println(coffeesCount + " cups of coffee");
      
       System.out.println("---------------");

       subtotal = totalchips + totalSodas + totalHotdogs + totalCoffees;

       System.out.println("sub total : " + subtotal);
      
       double totalDiscount=(subtotal*DISCOUNT_RATE)/100;
      
       System.out.println("Discount : " +totalDiscount);
      
       double totalTax=((subtotal-totalDiscount)*TAX_RATE)/100;
      
       System.out.println("Tax : "+totalTax);
      
       System.out.println("Total : "+(subtotal-totalDiscount-totalTax));
      
       System.out.println("Thank You for your order . . . Good Day ...");

   }

}

OUTPUT :