java NetBeans

Exercise#4 Write a Java method that return the value of second-to-last node in a singly linked list in which the last node is indicated by a null next reference. Assume that your list consists of at least five nodes each storing data of type int. Write a driver program to test your method. Exercise#5 Give an implementation of the size() method for the SingularlyLinkedList class, assuming that we did not maintain size as an instance variable. Write a driver program to test your method