### Question:
StringNormalizer { public static String reduceWS(String s) { return s.replaceAll("-\n", "").replaceAll( "(\\p{Space}|\u2028|\u2029)+", " ").trim(); }  static String reduceWS(String s); static String composed(String s); static String compatible(String s); static String removeDiacritics(String s); static String removePunctuation(String s); static String trim(String s); static String canonical(String s,
            boolean ignoreCase,
            boolean ignoreDiacritics,
            boolean ignorePunctuation); static String strip(String s); static String encode(String s);  }### Answer:
@Test public void testReduceWS() { System.out.println("reduceWS"); String s = "one \rtwo\nthree"; String expResult = "one two three"; String result = StringNormalizer.reduceWS(s); assertEquals(expResult, result); }