LeetCode 237. Delete Node in a Linked List 删除链表中的节点（Java）

题目：

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

Note:

• The linked list will have at least two elements.
• All of the nodes’ values will be unique.
• The given node will not be the tail and it will always be a valid node of the linked list.
• Do not return anything from your function.

解答：

题目比较简单，但是要注意！题目中没有给出待删除的链表，没有head，只有node，所以不能对node的上一节点进行操作。
因此，将下一节点向前挪，即将下一个节点的值传给当前节点node，然后删除下一节点即可。

class Solution {
    public void deleteNode(ListNode node) {
        node.val = node.next.val;
        node.next = node.next.next;
    }
}