Question: Examine the following method found in a LinkedList class, which removes an element from one end of the linked list 21 // Removes an element
Examine the following method found in a LinkedList class, which removes an element from one end of the linked list 21 // Removes an element at one end of a list 22 public void remove(){ 23 Node newtail = tail.prev: 24 newtail.next = null; tail - newtail: 26 numelement ) When running the method, the following error occur Exception in thread "main" java.lang.NullPointerException at Linkedlist.remove(Linkedlist java:23) at Linkedlist.testRemove/Linkedlist.java:37) at Linkedlist.main(LinkedList java:45) Explain what scenario caused this error. We are not asking you to for the entor, but explain what type of scenario caused the error For example, if you were writing tetits for a linked in class, what type of list would you create to trigger the error shown above. You do not have to write any code, but should clearly indicate what the contents of the list are, and what line in the code causes the error and why
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