Question

Program: Java (using eclipse)

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 by displaying 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!!!!!

Answer 1

SOURCE CODE:

*Please follow the comments to better understand the code.

**Please look at the Screenshot below and use this code to copy-paste.

***The code in the below screenshot is neatly indented for better understanding.



import java.util.Scanner;

public class BarChart {
    // function to print the barchart for a given store number and sise
    public static void printBar(int storeNum,int size)
    {
        System.out.print("Store: "+storeNum+"  ");
        for(int j = 0; j < size; j++)
        {
            System.out.print("* ");
        }
        System.out.println();
    }

    public static void main(String[] args) {

        Scanner in = new Scanner(System.in);
        // take an array of size 5
        int[] barArray = new int[5];
        int count=0;
        while(count<5)
        {
            // ask for input
            System.out.print("Enter sale for store "+(count+1)+": ");
            // read number
            int value= in.nextInt();
            if(value<0)
            {
                // negative value!!
                System.out.println("Invalid. Please enter a positive number.");
            }
            else
            {
                // Positive value, add it to teh array.
                barArray[count]=value;
                // increase the count
                count++;
            }
        }

        // print the bars
        for(int i =0; i < 5; i++)
        {
           printBar(i+1,barArray[i]/100);
        }
    }

}

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SAMPLE RUNS