在Java中创建单链表的新节点

class ListNode {
    int value;
    ListNode next;

    public ListNode(int value) {
        this.value = value;
        this.next = null;
    }
}

ListNode newNode = new ListNode(10);

newNode.next = head; // 将新节点的next指向当前链表的头节点
head = newNode; // 更新链表的头节点为新节点

ListNode current = head;
while (current.next != null) {
    current = current.next;
}
current.next = newNode;