Computer Science 121
Example using a two dimensional array.

public class MultiDimensional
{
    public static void main (String [] args)
    {
        Table table = new Table ();
        table.fillTable ();
        table.displayTable ();
    } // method main
} // class Multidimensional

class Table
{
    private int [] [] matrix;
    final int maxRow = 5;
    final int maxCol = 5;

    Table ()
    {
        matrix = new int [maxRow][maxCol];
    } // constructor

    public void fillTable ()
    {
        for (int row = 0; row < maxRow; row++)
            for (int col = 0; col < maxCol; col++)
                matrix [row][col] = row + col;
    } // method fillTable

    public void displayTable ()
    {
        for (int row = 0; row < maxRow; row ++)
        {
            for (int col = 0; col < maxCol; col ++)
                System.out.print (" " + matrix [row][col]);
            System.out.println ();
        }
    } // method displayTable
} // class Table