Q$2.$ Create class Node with $($int id$)($String Name$)($double GPA$)($Node next$)$ as members. Write a tester program to add three students $($provide your own details$).$ Link all nodes so they can be accessed using a "head" pointer.

Q$3.$ Give an algorithm to find the $($node before the last$)$ in a singly linked list. Use the Node class from Q$2.$

Q$4.$ Write a Java code to add a new node to the beginning of the a List. Use the Node class from Q$2.$