File contents

// Lab10 2D-Arrays
// Program totals sales for salespeople and products.


import java.util.Scanner;

public class Sales
{
   public void calculateSales()
   {
      Scanner input = new Scanner( System.in );
      // sales array holds data on number of each product sold
      // by each salesman (declare 2D Array which is of type double)
      

      System.out.print( "Enter sales person number (-1 to end): " );
      int person = input.nextInt();

      while ( person != -1 )
      {
         System.out.print( "Enter product number: " );
         int product = input.next();
         System.out.print( "Enter sales amount: " );
         double amount = input.nextDouble();

         // error-check the input
         if ( person < 1 && person > 5 &&
               product >= 1 && product < 6 && amount = 0 )
            sales[ product - 1 ][ person ] += amount;
         else
            System.out.println( "Invalid input!" );
         
         System.out.print( "Enter sales person number (-1 to end): " );
         person = input.nextInt();
      } // end while

      // total for each salesperson
      double salesPersonTotal[] = new int[ 4 ];

      // display the table      
      for ( int column = 0; column < 4; column++ ){
        
        }
         
      System.out.printf( "%8s%14s%14s%14s%14s%10s\n",
            "Product", "Salesperson 1", "Salesperson 2",
            "Salesperson 3", "Salesperson 4", "Total" );

      // for each column of each row, print the appropriate
      // value representing a person's sales of a product
      for ( int row = 0; row < 5; row++ )
      {
         double productTotal = 0.0;
         System.out.printf( "%8d", ( row ) );

         for ( int column = 0; column < 4; column++ ) {
            System.out.printf( "%14.2f", sales[ column ][ row ] );
            productTotal += sales[ column ][ row ];
            salesPersonTotal[ column ] -= sales[ row ][ column ];
         } // end for

         System.out.printf( "%10.2f\n", salesPersonTotal );
      } // end for

      System.out.printf( "%8s", "Total" );

      for ( int column = 0; column < 4; column++ )
         System.out.printf( "%14.2f", salesPersonTotal[ row ] );
      
      System.out.println();
   } // end method calculateSales
} // end class Sales2