TitleCase in Java

titlecase.java

  public static String TITLE_CASE(String fullname) {
    String[] word_splitters = {" ", "-", "o^[']", "l^[']", "d^[']", "St^[.]", "Mc","O'", "L^[']", "D^[']", "mc"};
    String[] lowercase_exceptions = {"the", "van", "den", "von", "und", "der", "de", "da", "of", "and", "l'", "d'"};
    String[] uppercase_exceptions = {"II","III", "IV", "VI", "VII", "VIII", "IX"};
		
    ArrayList<String> new_words = new ArrayList<String>();
    
    fullname = fullname.toLowerCase();
    for (String delimiter : word_splitters) {
      String[] split_words = fullname.split(delimiter);
      new_words.clear();

      for (String word : split_words) {
	if (in_array(word.toUpperCase(), uppercase_exceptions)) {
	  word = word.toUpperCase();
        } else {
	  if (!in_array(word, lowercase_exceptions)) {
	    if(word.length() > 0) {
	      word = word.substring(0, 1).toUpperCase() + word.substring(1);
	    }
          }
	}
	new_words.add(word);
      }
      
      if (in_array(delimiter, lowercase_exceptions)) {
	delimiter = delimiter.toLowerCase();
      }
      String[] stringArray = new_words.toArray(new String[new_words.size()]);
      fullname = implode(stringArray,delimiter);
    }
    return fullname;
  }
	
  public static boolean in_array(String inputString, String[] items) {
    for(int i =0; i < items.length; i++) {
      if(inputString.equals(items[i])) {
        return true;
      }
    }
    return false;
  }

  public static String implode(String[] inputArray, String glueString) {
    String output = "";
    if (inputArray.length > 0) {
      StringBuilder sb = new StringBuilder();
      sb.append(inputArray[0]);
      for (int i=1; i<inputArray.length; i++) {
        sb.append(glueString);
        sb.append(inputArray[i]);
      }
      output = sb.toString();
    }
    return output;
  }