IntSet { static IntSet noneOf(int x, int... xs) { return complement(allOf(x, xs)); }    }
@Test public void noneOf() throws Exception { IntSet one = IntSet.noneOf(0, 1, 3, 5); assertFalse(one.contains(0)); assertFalse(one.contains(1)); assertTrue(one.contains(2)); assertFalse(one.contains(3)); assertTrue(one.contains(4)); assertFalse(one.contains(5)); assertTrue(one.contains(6)); }