public void drawField() {
        char codeNumber = '0';
        char codeLetter = 'A';

        System.out.print("  ");
        for(int i=0; i < FIELD_SIZE; i++) {
            System.out.print(" " + codeNumber + " ");
            codeNumber++;
        }
        System.out.print("\n");
        for (int i = 0; i < FIELD_SIZE; i++) {
            System.out.print(codeLetter + " ");
            for (int j = 0; j < FIELD_SIZE; j++) {
                System.out.print("[" + field[i][j] + "]");
            }
            System.out.print('\n');
            codeLetter++;
        }
        System.out.println();
    }