Q9.4 5 Points Read the following code snippet (same as part 9.3) Node prev = null; Node ptr = front; while ( ptr.next != null ){ prev = ptr; ptr = ptr.next; } Node newNode = new Node(); newNode.item = 2; newNode.next = null; prev.next = newNode; Shall we have errors when running the code for some linked list? If so, what kind of linked list will trigger errors and what is the error? Enter your answer here