@Test public void key_input10_1_return1() throws Exception { int actual = key(10, 1); Assert.assertEquals(1, actual); }
private int key(Integer element, int digit) throws IllegalArgumentException { return -1; }
RadixSort { private int key(Integer element, int digit) throws IllegalArgumentException { return -1; } }
RadixSort { private int key(Integer element, int digit) throws IllegalArgumentException { return -1; }  }
RadixSort { private int key(Integer element, int digit) throws IllegalArgumentException { return -1; }  void sort(Integer[] elements); }
RadixSort { private int key(Integer element, int digit) throws IllegalArgumentException { return -1; }  void sort(Integer[] elements);  }