Question

The owner of a candle shop has asked for your help. The shop sells three types of candles as shown below:


Type Price Burn Time (hours)
1 $2.50 5
2 $3.75 7
3 $5.99 12

The owner wants you to write a program to perform certain calculations when customers buy different numbers of the candles.

Required:
a. Develop an algorithm to satisfy the following requirements:

Prompt the user to enter the number of candles of each type the customer wants to buy. Since you can’t buy a fraction of a candle, the input for each type of candle must be an integer. (You may assume that only integer values between 0 and 10 will be entered when this program is tested.)
Calculate the total price of all the candles bought using the information in the table above. For example, two Type 1 candles and one Type 2 candle would have a total price of $8.75.
Calculate the total burn time of all the candles if they were burned consecutively (i.e., one after the other). For example, one Type 1 and one Type 3 candles would burn for 17 hours.
Calculate the cost-per-minute for that purchase.
Output some kind of meaningful display that includes the number of candles of each type bought, the total price, the total burn time, and the cost-per-minute. You can be as creative as you want with this!
Write the pseudocode for the algorithm and store it in a file (file format can be text, pdf or doc) with the name CandleShopSteps.

b. Write the code (20 points)

Once you've written your algorithm it is time to turn it into a Java program. that can be executed (run). Here are some things to keep in mind:

the class should be name CastleShop.
the program will need to import the Scanner class from the Java util package.
the class should have a main method that will include the logic for the algorithm you developed in Part A. You may choose to add additional methods that are called in the main method.

Answer 1

Answer:

import java.util.Scanner;

public class Main {

public static void main(String[] args) {

  double cost = 0;

  double priceF, priceS, priceT;

  int nOne = 0, nTwo = 0, nThree = 0;

  int fBurn, sBurn, tBurn;

  int burnTime = 0;

  isEnd = "n";

   while (isEnd == "n"){

      Scanner in = new Scanner(System.in);

      int option = in.nextInt();

      if (option == 1){

            priceF = 2.50;

            fBurn = 5;

            System.out.print("Enter number of items: ");

            nOne += in.nextInt();

            burnTime += fBurn * nOne;

            cost += priceF * nOne;

        } else if (option== 2){

            priceS = 3.75;

            sBurn = 7;

            System.out.print("Enter number of items: ");

            nTwo += in.nextInt();

            burnTime += sBurn * nTwo;

            cost += priceS * nTwo;

        } else if(option == 3){

            priceT = 5.99;

            tBurn = 12;

            System.out.print("Enter number of items: ");

            nThree += in.nextInt();

            burnTime += tBurn * nThree ;

            cost += priceT * nThree;

        } else{

            System.out.println("option must be between 1 and 3");

        }

      System.out.print("Do you want to end the order? y/n: ");

      isEnd = in.nextLine();

  }

  System.out.println("Number of Type 1 candles bought : "+nOne);

  System.out.println("Number of Type 2 candles bought : "+nTwo);

  System.out.println("Number of Type 3 candles bought : "+nThree);

  System.out.println("Total cost is : "+cost);

  System.out.println("Total burn time is : "+burnTime);

  double cpm = (burnTime * 60) / cost;

  System.out.println("Cost per minute : "+cpm);

}

}

Explanation:

The Java program prompts the user to continuously choose from three options 1, 2 and 3. The prices, the burn time and the cost per minute burn of the total candles ordered are printed out.