Java 从尾到头打印链表

class Solution {
    public int[] reversePrint(ListNode head) {
        Stack<ListNode> stack = new Stack<ListNode>();//创建一个栈
        ListNode cur = head;
        //将节点压栈
        while (cur != null) {
            stack.push(cur);
            cur = cur.next;
        }
        int size = stack.size();//栈的长度
        int[] array = new int[size];//创建一个和栈一样长的数组
        //出栈入数组
        for (int i = 0; i < size; i++) {
            array[i] = stack.pop().val;
        }
        return array;
    }
}

public class PrintList {
  
    ArrayList<Integer> cur = new ArrayList<Integer>();
    public int[] reversePrint(ListNode head) {
        recur(head);
        int[] array = new int[cur.size()];
        for (int i = 0; i <array.length; i++) {
            array[i] = cur.get(i);
        }
        return array;
 
    }
 
    public void recur(ListNode head) {
        if(head == null) {
            return ;
        }
        recur(head.next);
        cur.add(head.val);
    }
 
}