Question

ITSC 1212 – Programming Checkpoint 3 – Candle Shop

The main idea behind this activity is to create a program that accepts multiple inputs from a user and use that information to control the operation of the method.

Preliminaries

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.

Part A – Develop an algorithm (5 points)

Develop an algorithm to satisfy the following requirements:

1. 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.)
2. 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.
3. 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.
4. Calculate the cost-per-minute for that purchase.
5. 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.

Part 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

You can have reference to the comments in the code for algorithm. Algorithm is same as the comments I have given for simplicity.

Have a look at the below code and the sample output.

import java.util.Scanner;
class CastleShop{
  // main method
  public static void main(String[] args) {
    // create scanner object
    Scanner sc = new Scanner(System.in);
   // create variables to store type of candles
    int type1,type2,type3;

    System.out.println("Enter number of candles you want to buy of Type 1");
    // take user input of candle type 1
    type1 = sc.nextInt();
    System.out.println("Enter number of candles you want to buy of Type 2");
   // take user input of candle type 2
    type2 = sc.nextInt();
    System.out.println("Enter number of candles you want to buy of Type 3");
    // take user input of candle type 3
    type3 = sc.nextInt();
    // create varible to store total price
    double totalPrice = 0.0;
    // multiply number of candles by their price and sum in the total price
    totalPrice+=(type1*2.5);
    totalPrice+=(type2*3.75);
    totalPrice+=(type3*5.99);
    // create variable for total burn time
    int totalBurnTime = 0;
    // multiply number of candles by their burn time and sum in the total price
    totalBurnTime+=(type1*5);
    totalBurnTime+=(type2*7);
    totalBurnTime+=(type3*12);
   // calculate cost per minute, also conver the time in minutes by multiplying it by 60
    double costPerMinute = (totalPrice/(totalBurnTime*60)); 
    // Display the results...
    System.out.println("Total candles of Type 1: " + type1);
    System.out.println("Total candles of Type 2: " + type2);
    System.out.println("Total candles of Type 3: " + type3);
    System.out.println("Total price of candles: " + totalPrice);
    System.out.println("Total burn time of candles: " + totalBurnTime);
    System.out.println("Cost per minute: " + costPerMinute);
    }
}

Happy Learning!