Delete Node in a Linked List（java）

题目要求：

Write a function to delete a node (except the tail) in a singly linked list, given only access to that node.

Supposed the linked list is 

1 -> 2 -> 3 -> 4

 and you are given the third node with value 

3

,
the linked list should become 

1 -> 2 -> 4

 after calling your function.

分析：

       简单的单链表节点删除，关注尾节点处理

代码：

/**
 * Definition for singly-linked list.
 * public class ListNode {
 *     int val;
 *     ListNode next;
 *     ListNode(int x) { val = x; }
 * }
 */
public class Solution {
    public void deleteNode(ListNode node) {
        if(node.next != null) {
            node.val=node.next.val;
            node.next=node.next.next;
        }
    }
}