Java assign two dimensional array with random

Im working on the Exercises Arrays and ArrayLists form the book Java How to program by Deitel 9th edition. Here's is the code followed by my questions

public static void main(String[] args) {
    // TODO code application logic here
    Random r = new Random();

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

    // display salesnames
    System.out.println("\t\t  1.Tom   2.Eva   3.Jan   3.Roy    Total);     

    // declare ProductCounter
    int proCount = 1;

    // display array
    for (int row = 0; row < sales.length; row++) {
        System.out.print("Product " + proCount + "\t");

        for (int column = 0; column < sales[row].length; column++) {
            sales[row][column] = 0 + r.nextInt(2);
            System.out.printf("  %d\t", sales[row][column]);

        }
        proCount++;
        System.out.println();
    }

}

}

After the second for loop i fill the array with random numbers 0 or 1 and the result looks like this:

                  1.Tom   2.Eva   2.Jan   4.Roy    Product Totals
   Product 1      1       0       1       0 
   Product 2      0       0       1       1 
   Product 3      0       1       0       1 
   Product 4      0       0       0       1 
   Product 5      0       0       0       0 

Question: Each salesperson passes in 0-5 sales slips per day

Problem: This random only randoms one time per product. How do I code so it randoms between 0-5 so that could also mean that it could be 3 of product number2 because now it only decides if one product is sold one time or not.