Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Examine the following method found in a LinkedList class, which removes an element from one end of the linked list 21 // Removes an element

image text in transcribed
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

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

More Books

Students also viewed these Databases questions