/* QuarterlySales.java
   by Craig Persiko for CS 111A
   (adapted from Tony Gaddis' Starting Out with C++)
   This program demonstrates a two-dimensional array.

  This program uses a BufferedReader instead of a Scanner for input.
  This is an older way of doing things, but you may still see it.
*/

import java.io.*;

class QuarterlySales
{
  public static void main(String[] args) throws Exception
  {
    double[][] sales = new double[3][4];    // 2D array, 3 rows and 4 columns.
    double totalSales = 0; // To hold the total sales.
    int r, c;     // Loop counters.

    // Set up keyboard input reader:
    BufferedReader keyboard = new BufferedReader(new InputStreamReader(System.in));

    System.out.print("This program will calculate the total sales of");
    System.out.println(" all the company's divisions.");
    System.out.println("Enter the following sales information:");

    // Nested loops to fill the array with quarterly
    // sales figures for each division.
    for (r = 0; r < 3; r++)
    {
      for (c = 0; c < 4; c++)
      {
        System.out.print("Division " + (r + 1));
        System.out.print(", Quarter " + (c + 1) + ": $");
        sales[r][c] = Double.parseDouble(keyboard.readLine());
      }
      System.out.println(); // blank line
    }

    // Nested loops to add all the elements:
    // These loops use the "for each" loop structure
    for (double[] row : sales)  // for each row
      for (double item : row)  // for each item in the row
        totalSales += item;

    System.out.printf("The total sales for the company are: $%,.2f \n", totalSales);
  }
}

/* Sample Output:

This program will calculate the total sales of all the company's divisions.
Enter the following sales information:
Division 1, Quarter 1: $2.50
Division 1, Quarter 2: $1.75
Division 1, Quarter 3: $4.00
Division 1, Quarter 4: $3.75

Division 2, Quarter 1: $100.00
Division 2, Quarter 2: $124.00
Division 2, Quarter 3: $111.11
Division 2, Quarter 4: $175.00

Division 3, Quarter 1: $56000.00
Division 3, Quarter 2: $49000.00
Division 3, Quarter 3: $52000.00
Division 3, Quarter 4: $100000.00

The total sales for the company are: $257,522.11

*/