### Question:
Chars { public static boolean isPunc(String str) { return PattP.matcher(str).matches(); }  static boolean isChar(String str); static boolean containChar(String str); static boolean isChar(char c); static boolean isChineseChar(char c); static String ToDBC(String input); static StringType char2StringType(CharType c); static StringType getStringType(String str); static TreeSet<CharType> getTypeSet(String str); static boolean isLetterOrDigitOrPunc(char ch); static boolean isLetterOrDigitOrPunc(String str); static boolean isPunc(String str); static CharType[] getType(String str); static CharType getType(char c); static String getTypeString(String str); static String type2String(CharType[] tag); static boolean isWhiteSpace(String w);  }### Answer:
@Test public void testIsPunc() { String input = "ss"; boolean s = Chars.isPunc(input); System.out.println(s); }