Array Filler

import java.util.Arrays;

public class ArrayFiller {

    /**
     * This will fill a 2D array of any size with letters a-z
     * looping until it reaches the end of the array.
     *
     * @param arrayToFill the array that is going to be
     * filled with characters a-z
     */
    public void fillArray(char[][] arrayToFill) {

        //The array of characters with the letters to fill the array
        char[] alphabet = "abcdefghijklmnopqrstuvwxyz".toCharArray();

        //Counter to keep track of the index of the alphabet array
        int index = 0;

        //Loops through all the empty spaces in the array and fills them
        for(int row =  0 ; row < arrayToFill.length; row++) {
            for(int col = 0; col < arrayToFill[0].length; col++) {

                //Reset the index if it's at the end of alphabet
                if(index == 26)
                    index = 0;

                //Set the index in the array to fill to a letter at index
                arrayToFill[row][col] = alphabet[index];

                //increment index
                index++;
            }
        }


        //Print the array
        for(int row =  0 ; row < arrayToFill.length; row++) {
            for(int col = 0; col < arrayToFill[0].length; col++) {
                //Print the element at row, col with a comma
                System.out.print(arrayToFill[row][col] + ", ");
            }
            //Skips a line when the row is done
            System.out.println();
        }
    }

}