Java Capitalize a sentence with multiple words (especially for Turkish)

capitalize.java

public static String capitalize(String line) {
    String[] words = line.split(" ");
    StringBuilder sb = new StringBuilder();
    for(String word: words) {
        sb.append(Character.toUpperCase(word.charAt(0)));
        sb.append(word.substring(1).toLowerCase(new Locale("tr", "TR")));
        sb.append(" ");
    }
    return sb.toString();
}