FormatNumber

import java.text.DecimalFormat;
import java.text.NumberFormat;
/**
Modify this program to produce right-justified columns, like this:

 23   5 213   9 325
  4 123  23  35   3
879  21   8 223  98

*/

public class FormatNumber
{
    public static void main(String[] args)
    {
        int[][] numbers = { {23, 5, 213, 9, 325},
                            {4, 123, 23, 35, 3},
                            {879, 21, 8, 223, 98}
                          };

        NumberFormat formatter;
        String pattern = "###";
        for (int row = 0; row < 3; row++)
        {
            for (int col = 0; col < 5; col++)
            {
                formatter = new DecimalFormat(pattern);
                String number = formatter.format(numbers[row][col]);
                System.out.print(number + " ");
            }
            System.out.println();
        }
    }

}