Company has 4 sales people who sell 5 different products. once a day each salesp

Question

Company has 4 sales people who sell 5 different products. once a day each salesperson passes in a slip for each type of product sold. each slip contains:
a.. sales person number
b.. product number
c.. the total $ value of the product sold that day
Write an application that will read all this information for last month's sales & summarize the total sales by salesperson and by product. All totals should be stored in 2-dimensional array sales. after processing all the info for last month. display tabular format, cross-total each column. Should output of the total rows and columns.

Explanation / Answer

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 ", "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 ", 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

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