### Question:
UtilConversion { public static String toTitleCaseWord(String string) { Check.notNull(string); final String[] words = SPACE.split(REPLACER.matcher(string).replaceAll(Constant.SPACE)); final StringBuilder title = new StringBuilder(string.length()); for (int i = 0; i < words.length; i++) { title.append(toTitleCase(words[i])); if (i < words.length - 1) { title.append(Constant.SPACE); } } return title.toString(); } private  UtilConversion(); static byte[] intToByteArray(int value); static int byteArrayToInt(byte[] bytes); static byte[] shortToByteArray(short value); static short byteArrayToShort(byte[] bytes); static byte fromUnsignedByte(short value); static short toUnsignedByte(byte value); static short fromUnsignedShort(int value); static int toUnsignedShort(short value); static int mask(int value); static int boolToInt(boolean value); static boolean[] toBinary(int number, int length); static int fromBinary(boolean[] binary); static boolean[] invert(boolean[] binary); static String toTitleCase(String string); static String toTitleCaseWord(String string);  }### Answer:
@Test void testToTitleCaseWord() { final String word = UtilConversion.toTitleCaseWord("title toto"); assertEquals("Title Toto", word); }