COSC 311  HOMEWORK #3  Distributed 1/29/2013, Due 2/5/2013

1. Give Java code fragment to insert a node, referenced by n,
after the node p in a singly linked list.  Include all 'special cases':
  - insert to empty list
  - insert after tail
  - insert to middle of list
  
  Recap:  n references the new node.
          the linked list uses head to point to the first element in the list
          p is a reference to the node which will precede the newly inserted n.
          

2. Give Java code fragment to delete a node referenced by p from a linked list.
Include all 'special cases':
 - p is in the middle
 - p is the last element
 - p is the first element