import java.util.Scanner;
public class Lab09
{
Scanner input = new Scanner( System.in );
double sales = new double[ 5 ][ 4 ];
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();
if ( person < 1 && person > 5 && product >= 1 && product < 6 && amount >= 0)

sales[ product-1][person-1] += amount;
else
System.out.println("Invalid input!" );
System.out.print( "Enter sales person number (-1 to end): ");
person = input.nextInt();


}

double salesPersonTotal[][] = new double[ 4 ];

for ( int column = 0; column < 4; column++ )
salesPersonTotal[ column ][ row ] = 0;

System.out.printf( "%7s%14s%14s%14s%14s%10s\n", "Product", "Salesperson1","Salesperson2","Salesperson3", "Salesperson 4", "Total" );

for ( int row = 0; row < 5; row++ )
{
double productTotal = 0.0;
System.out.printf( "%7d", (row + 1) );
for ( int coulumn = 0; column < 4; column++ )
{
System.out.printf( " %14.2f", sales[ column ][row] );
productTotal += sales[ column ][ row ];
}
System.out.printf( "%7s", "Total");
for ( int column = 0; column < 4; column++ )
System.out.printf( "%14.2f", salesPersonTotal[ column ] );
System.out.println();

}
}

..................

public class lab09Test
{
public static void main (String args[] )
{
Lab09 application = new Lab09();
application.calculateSales();
}
}

what is the error u get..
did u make sure your java file name is lab09Test.java?
r u using jb builder or plain java compilation method?

yes, the name is correct. I am using JCreator.

I use command line...like this way

javac filename.java

and if u r using a simple editor like notepad,editpad make sure that the file extension is .java....while saving from notepad some times it saves as "filename.java.txt"

slack,
can you please post the error message?

looks like lots of syntax error..

I corrected several mistakes and now it runs, but still not giving desired output:

import java.util.Scanner;
public class Lab09
{
public void calculateSales()
{
Scanner input = new Scanner( System.in );
/*[][] missing after the variable sales */
double sales[][] = new double[ 5 ][ 4 ];

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

while( person != -1 )
{
System.out.print( "Enter product number: ");

/*Compilation error: it should be input.nextInt(), not input.next()*/
int product = input.nextInt();

System.out.print( "Enter sales amount: ");
double amount = input.nextDouble();

if ( person < 1 && person > 5 && product >= 1 && product < 6 && amount >= 0)

sales[ product-1][person-1] += amount;
else
System.out.println("Invalid input!" );

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


}

double salesPersonTotal[][] = new double[ 4 ][ 5 ];
/* for statement missing for row */
for ( int row = 0; row < 5; row++ )
{
for ( int column = 0; column < 4; column++ )
{
salesPersonTotal[ column ][ row ] = 0;
}

}


System.out.printf( "%7s%14s%14s%14s%14s%10s\n", "Product", "Salesperson 1","Salesperson 2","Salesperson 3", "Salesperson 4", "Total" );

for ( int row = 0; row < 5; row++ )
{
double productTotal = 0.0;
System.out.printf( "%7d", (row + 1) );
for ( int column = 0; column < 4; column++ )
{
System.out.printf( " %14.2f", sales[ column ][row] );
productTotal += sales[ column ][ row ];
salesPersonTotal[ column ][ row ] += sales[ column ][row ];
}

System.out.printf( "%7s", "Total" );
}

System.out.printf( "%7s", "Total");

for ( int column = 0; column < 4; column++ )
System.out.printf( "%14.2f", salesPersonTotal[ column ] );

System.out.println();
}
}

This is the output I am getting; and I can see it is not working...any suggestion, anyone?

Slackdemic

I am using java after 3-4 years....So i don't know where your code goes wrong but the error exists here...i think so

double sales[][] = new double[ 5 ][ 4 ];

here you are defining an array of 5 dimesion having 4 dimension each


double salesPersonTotal[][] = new double[ 4 ][ 5 ];

and here you are using an array of 4 dimension having 5 dimension each

That's why this error occurs. you should try either

double sales[][] = new double[ 5 ][ 4 ];

double salesPersonTotal[][] = new double[ 5 ][ 4 ];


or

double sales[][] = new double[ 4 ] [5 ];

double salesPersonTotal[][] = new double[ 4 ][ 5 ];

this might help you

Slackdemic

You are getting array index out of bound exception. You are not handling the indexes correctly in calculate sales methods.

Here you go...
it works but you might have to align the output properly to pretty printer.

import java.util.Scanner;
public class lab09{
public void calculateSales()
{
Scanner input = new Scanner( System.in );
/*[][] missing after the variable sales */
double sales[][] = new double[ 5 ][ 4 ];

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

while( person != -1 )
{
System.out.print( "Enter product number: ");

/*Compilation error: it should be input.nextInt(), not input.next()*/
int product = input.nextInt();

System.out.print( "Enter sales amount: ");
double amount = input.nextDouble();

if ( person >= 1 && person < 5 && product >= 1 && product < 6 && amount >= 0)
sales[ product-1][person-1] += amount;
else
System.out.println("Invalid input!" );

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


}

double salesPersonTotal[] = new double[ 5];
/* for statement missing for row */
for ( int row = 0; row < 5; row++ )
{

salesPersonTotal[ row] = 0;
}


System.out.printf( "%7s%14s%14s%14s%14s%10s\n", "Product", "Salesperson 1","Salesperson 2","Salesperson 3", "Salesperson 4", "Total" );

for ( int row = 0; row < 5; row++ )
{
double productTotal = 0.0;
System.out.printf( "%7d", (row + 1) );
for ( int column = 0; column < 4; column++ )
{
System.out.printf( " %14.2f", sales[row][column] );
productTotal += sales[row ][ column ];
salesPersonTotal[ column ] += sales[row][column ];
}
System.out.printf( "%14.2f", productTotal );
System.out.println();
}
System.out.println();
System.out.printf( "%7s", "Total");

for ( int column = 0; column < 4; column++ )
System.out.printf( "%14.2f", salesPersonTotal[ column ]);

System.out.println();
}
}

Thank you guys! But, I had to turn that in with the errors. :(