Using java modify the code below using the Scanner class and a while loop. impor

Question

Using java modify the code below using the Scanner class and a while loop.

import java.text.DecimalFormat;
import javax.swing.JOptionPane;  

/**
   This program calculates a running total.
*/

public class TotalSales
{
   public static void main(String[] args)
   {
       int days;       //The number of days
       double sales;       // A day's sales figure
       double totalSales;   //Accumulator
       String input;       //To hold the user's input

       //Create a DecimalFormat object to format output.
       DecimalFormat dollar = new DecimalFormat("#,##0.00");

       //Get the number of days.
       input = JOptionPane.showInputDialog("For how many days " + "do you have sales figures?");
       days = Integer.parseInt(input);

       //Set the accumulator to 0.
       totalSales = 0.0;

       //Get the sales figures and clculate a running total.
       for (int count = 1; count <= days; count++)
       {
           input = JOptionPane.showInputDialog("Enter the sales " + "for day " + count + ":");
           sales = Double.parseDouble(input);
           totalSales += sales;    //Add sales to totalSales.
       }
      
       //Display the total sales.
       JOptionPane.showMessageDialog(null, "The total sales are $" + dollar.format(totalSales));

       System.exit(0);
   }
}

Explanation / Answer

import java.text.DecimalFormat;
import java.util.*;
import javax.swing.JOptionPane;

/**

*/

public class TotalSales
{
   public static void main(String[] args)
   {
       int days;
       double totalSales;
       String input;

        DecimalFormat dollar = new DecimalFormat("#,##0.00");

        //input = JOptionPane.showInputDialog("For how many days " +
          //                               "do you have sales figures?");
        Scanner in = new Scanner(System.in);
        System.out.println("For how many days " + "do you have sales figures?");
        days = in.nextInt();

        totalSales = 0.0;

       int count=1;
       while(count<=days)
        {
           input = JOptionPane.showInputDialog("Enter the sales " + "for day " + count + ":");
           sales = Double.parseDouble(input);
           totalsales += sales;
           count++;
        }

        JOPtionPane.showMessageDialog(null, "The total sales are $" + dollar.format(totalSales));

        System.exit(0);
     }
}

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