class Main { public static void main(String[] args) throws Exception { // hollow testHollow(true, new int[] {1,1,1,0,0,0,1,1,1}); testHollow(true, new int[] {1,1,1,1,0,0,0,0,1,1,1,1}); // not hollow testHollow(false, new int[] {1,1,0,0,1,1}); testHollow(false, new int[] {1,0,1,0,0,0,1,1,1}); testHollow(false, new int[] {1,1,1,0,0,0,1,1,0}); testHollow(false, new int[] {1,1,0,0,0,1,1}); testHollow(false, new int[] {0,0,0,1,1,1,1,1,1}); // test with real numbers testHollow(true, new int[] {-55,28,53,24,0,0,0,0,47,-85,46,79}); System.out.println("Your code works!"); } private static void testHollow(boolean expectation, int[] sampleArray) throws Exception { if(expectation != isHollow(sampleArray)){ throw new Exception("Your code does not work."); } } private static boolean isHollow(int[] sampleArray) { /* An array is considered hollow when it contains n zeros in the middle that are both preceded and followed by n non-zero numbers; n must be greater than or equal to 3. Implement the isHollow function so that it returns true for arrays that are hollow, otherwise return false. */ return false; } }