### Question:
ABNF { public static boolean isCR (final int nCP) { return _isBitSet (nCP, BIT_CR); } private  ABNF(); static boolean isAlpha(final int nCP); static boolean isBit(final int nCP); static boolean isChar(final int nCP); static boolean isCR(final int nCP); static boolean isCtl(final int nCP); static boolean isDigit(final int nCP); static boolean isDQuote(final int nCP); static boolean isHexDigit(final int nCP); static boolean isHexDigitCaseInsensitive(final int nCP); static boolean isHTab(final int nCP); static boolean isLF(final int nCP); static boolean isOctet(final int nCP); static boolean isSP(final int nCP); static boolean isVChar(final int nCP); static boolean isWSP(final int nCP); static final int CHECK_RANGE_MIN_INCL; static final int CHECK_RANGE_MAX_INCL; }### Answer:
@Test public void testIsCR () { assertTrue (ABNF.isCR ('\r')); assertFalse (ABNF.isCR (0)); }