deque - Dequeue implementation error in Java -

i tried implement dequeue.

below part of code. used print() function in order print nodes in dequeue, seems nodes not connected @ all.

the addlast() function tries new node @ connect dequeue.

public class test<item>{      private node first, last;     private int n;     private class node{         item value;         node next;     }      public void addlast(item item){         node oldlast = last;         node last = new node();         last.value = item;         last.next = oldlast;         n++;     }      public void print(){         node temp = last;         while(temp != null){             system.out.println(temp.value);             temp = temp.next;         }     }      public static void main(string[] args){         test<string> deque = new test<string>();         deque.addlast("hello");         deque.addlast("first");         deque.addlast("second");         deque.addlast("third");     } } 

in addlast() method:

instead of node last = new node(); should write:

last = new node();