02. Matrix of Palindromes

import java.util.*;

public class Demo {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        //startLetter     (char)startLetter + col     startLetter
        //след всеки ред -> startLetter + 1
        int rows = scanner.nextInt();
        int cols = scanner.nextInt();

        String [][] matrix = new String[rows][cols];
        char startLetter = 'a';
        for (int row = 0; row < rows; row++) {
            for (int col = 0; col < cols ; col++) {
                //startLetter
                String palindrome = "" + startLetter + (char)(startLetter + col) + startLetter;
                matrix[row][col] = palindrome;
            }
            startLetter = (char)(startLetter + 1);
        }

        printMatrix(matrix, rows, cols);

    }
    //fill matrix
    private static void fillMatrix(Scanner scanner, int[][] matrix, int size) {
        for (int row = 0; row < size; row++) {
            for (int col = 0; col < size; col++) {
                matrix[row][col] = scanner.nextInt();
            }
        }
    }

    //print matrix
    public static void printMatrix (String [][] matrix, int rows, int cols) {
        for (int row = 0; row < rows; row++) {
            for (int col = 0; col < cols; col++) {
                System.out.print(matrix[row][col] + " ");
            }
            System.out.println();
        }
    }
}