Map.java

public List<String> mapFromWords(String... words) {
    List<String> braille = new ArrayList<>();
    for (int i = 0; i < words.length; i++) {
        braille.addAll(mapFromString(words[i]));
        if (i < words.length - 1) braille.add(Braille.SPACE.getValue());
    }
    return braille;
}

public List<String> mapFromString(String text) {
    List<String> braille = new ArrayList<>();
    for (int i = 0; i < text.length(); i++) {
        braille.add(Braille.fromKey(
                Character.toLowerCase(text.charAt(i))).getValue());
    }
    return braille;
}