(Solved) : N1 Yield Null Don T Understand Insert Method Newnodenext Next Next Rhs Referring N1 S Next Q34834092 . . . .

why is n1 not yield a null? I don’t understand the insert aftermethod. In newNode.next = next, is the next on the rhs referring ton1’s next?

public class Foothill

{

   public static void main (String[] args)

   {

Node n1, n2, n3, np;

n1 = new Node();

n2 = new Node();

n3 = new Node();

n1.insertAfter(n2); // insert n2 after n1

n2.insertAfter(n3); // insert n3 after n2

for (np = n1; np != null; np = np.getNext())

   np.show();

   }

}

//Class Node ———————————-

class Node

{

// data

private Node next;

// constructor

public Node()

{

   next = null;

}

// console display

public void show()

{

   System.out.print(“(generic node) “);

}

// insert after

public void insertAfter(Node newNode)

{

   if (newNode == null)

return;

   newNode.next = next;

   next