public class TestNode {
public static void main(String [] args) {
Node n1 = new Node(1);
Node n2 = new Node(2);
Node n3 = new Node(3);
n1.setNext(n2);
n3.setNext(n2);
n2.setNext(n3);
int data = n1.getNext().getNext().getData();
System.out.println(data);
n2 = n3;
data = n2.getData();
System.out.println(data);
n3.setNext(null);
data = n2.getNext().getData();
System.out.println(data);
}
}