LeetCode: Delete Node in a Linked List

LeetCode: Delete Node in a Linked List

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.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
public class DeleteNodeInALinkedList {
    public void deleteNode(ListNode node) {
        assert node.next != null;

        while (node != null && node.next != null) {
            ListNode next = node.next;
            node.val = next.val;

            if (next.next == null) {
                node.next = null;
            }
            node = node.next;
        }
    }
}