Question

Assignment:

Write a program that asks the user to enter today’s sales for five stores. The program should then display a bar chart comparing each store’s sales. Create each bar in the bar chart bydisplaying a row or asterisks. Each asterisk should represent $100 of sales. You must use a loop to print the bar chart.

If the user enters a negative value for the sales amount, the program will keep asking the user to enter the sales amount until a positive amount is entered,

You must use methods, loops and arrays for this assignment.

Sample Run 1:

Enter today's sale for store 1 (negative value not allowed)

1000

Enter today's sale for store 2 (negative value not allowed)

1200

Enter today's sale for store 3 (negative value not allowed)

1800

Enter today's sale for store 4 (negative value not allowed)

800

Enter today's sale for store 5 (negative value not allowed)

1900

SALES BAR CHART
Store 1:**********
Store 2:************
Store 3:****************** Store 4:********
Store 5:*******************

Sample Run 2:

Enter today's sale for store 1 (negative value not allowed)

-1000

Enter today's sale for store 1 (negative value not allowed)

1000

Enter today's sale for store 2 (negative value not allowed)

1200

Enter today's sale for store 3 (negative value not allowed)

-18000

Enter today's sale for store 3 (negative value not allowed)

1800

Enter today's sale for store 4 (negative value not allowed)

CPS 2231: Computer Organization and Programming

800

Enter today's sale for store 5 (negative value not allowed)

-90

Enter today's sale for store 5 (negative value not allowed)

1900

SALES BAR CHART
Store 1:**********
Store 2:************
Store 3:****************** Store 4:********
Store 5:*******************

Please note: The name of the class must be XXX_Program1 where XXX is your Kean email id. Any other name will result in a 5 point deduction.

Answer 1

/* CODE IN JAVA*/

import java.util.Scanner;

public class XXX_Program1 {

    public static void getData(int[] sales){
        Scanner scan = new Scanner(System.in);//To read from user
        for(int i = 0; i < sales.length; i++) {
            System.out.print("Enter today's sale for store " + (i + 1) + " (negative value not allowed): ");
            sales[i] = scan.nextInt();//Read sales data from user
            while(sales[i] < 0){//Validate user input
                System.out.print("Enter today's sale for store " + (i + 1) + " (negative value not allowed): ");
                sales[i] = scan.nextInt();
            }
        }
    }

    public static void plotData(int[] sales){
        System.out.println("SALES BAR CHART");
        for(int i = 0; i < sales.length; i++) {//For each store
            System.out.print("Store" + (i + 1) + ": ");
            for(int j = 0; j < sales[i]/100; j++)//For each $100 plot an asterisk
                System.out.print("*");
            System.out.println();
        }
    }

    public static void main(String[] args) {

        int[] sales = new int[5];//Create an array to store sales data for 5 stores
        getData(sales);//Get sales data for each store
        plotData(sales);//Plot bar graph for sales data
    }
}

SAMPLE RUN:

PUT YOUR EMAIL ID IN PLACE OF XXX IN CLASS NAME