Combinations implements Iterable<int[]> { public int getK() { return k; } Combinations(int n,
                        int k); private  Combinations(int n,
                         int k,
                         IterationOrder iterationOrder); int getN(); int getK(); Iterator<int[]> iterator(); Comparator<int[]> comparator();  }
@Test public void testAccessor2() { final int n = 5; final int k = 3; Assert.assertEquals(k, new Combinations(n, k).getK()); }