题目: 题解:
class Solution {public ListNode partition(ListNode head, int x) {ListNode small new ListNode(0);ListNode smallHead small;ListNode large new ListNode(0);ListNode largeHead large;while (head ! null) {if (head.val < x…
地址类
public class Address {public void street() {System.out.println("普通的街道");}public void zip() {System.out.println("普通的邮政编码");}public void city() {System.out.println("普通的城市");}
}
荷兰地址类
public class …