Delete Nth Node From Linked List

Delete Nth Node  From Linked List : 

class DeleteNthNode

{

  static class Node {

   int data;

   Node next;

  }

  /**

  @main Method

  **/

  public static void main(String[] args) {

  Node head = insert(insert(insert(insert(null, 1), 2), 3),4);

  head= delete(head,0);

  head= delete(head,2);

  printList(head);

  }

  /**

   * Delete Node At Nth Position of Linked List

   *

   * @param      head  The head

   *

   * @param      Nth Position

   * @return     return head of Linked List

   */

  public static Node delete(Node head,int pos) {

   if (head == null) {

    return head;

   }

   if(pos==0)

   {

     Node next = head.next;

     return next;

   }

   else{

     Node currentNode=head;

     while((pos-1)>0)

     {

       currentNode=currentNode.next;

       pos--;

     }

    Node next = currentNode.next.next;

    currentNode.next=next;

    return head;

   }

  }

  /**

   * Insert Node at End

   *

   * @param      head  The head node

   * @param      data  The data

   *

   * @return     { description_of_the_return_value }

   */

   public static Node insert(Node head, int data) {

    Node node = new Node();

    node.data = data;

    node.next = null;

       if(head==null)

       return node;

  Node currentNode= head;

  while(currentNode.next!=null)

  {

      currentNode=currentNode.next;

      }

    currentNode.next=node;

    return head;

   }

 /**

  * Print All Elements of Linked List

  *

  * @param      Head of Linked List

  */

  public static void printList(Node node) {

   Node currentNode = node;

   while (currentNode != null) {

    System.out.println(currentNode.data);

    currentNode = currentNode.next;

   }

  }

}