多重性关系可以是Optional（一个属性可拥有一个单个实例或没有）Required（一个属性必须拥有一个单个实例）Many很多的（一个属性可以拥有一个集合或一个单个实例）。Has方法包括如下几个：? HasOptional? HasRequired? HasMany在多数情况还需要在Has方法后面...
分类：
其他好文 时间：
2014-07-10 12:53:30
阅读次数：
241
Write an efficient algorithm that searches for a value in anmxnmatrix. This matrix has the following properties:Integers in each row are sorted from l...
分类：
其他好文 时间：
2014-07-10 12:37:21
阅读次数：
189
之前自定义了一个AlertDialog对话框，第一次点击时正常，但第二次调用时会出现错误：java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
关于这个错误纠结了我...
分类：
移动开发 时间：
2014-06-28 07:28:39
阅读次数：
278
In-App Purchases have been returned and are highlighted in the table below.Your In-App Purchase has been returned. You must modify or delete the highl...
分类：
其他好文 时间：
2014-06-27 19:52:04
阅读次数：
495
题目：Linked List CycleGiven a linked list, determine if it has a cycle in it.Follow up:Can you solve it without using extra space?个人思路：1、判断一个链表是否有环，标准做法...
分类：
其他好文 时间：
2014-06-27 19:41:40
阅读次数：
165
12. You need to produce a report where each customer's credit limit has been incremented by $1000. Inthe output, the customer's last name should have ...
分类：
其他好文 时间：
2014-06-27 15:53:14
阅读次数：
225
Graph and QueriesTime limit: 3.000 secondYou are given an undirected graph withNvertexes andMedges. Every vertex in this graph has an integer value as...
分类：
其他好文 时间：
2014-06-27 15:37:28
阅读次数：
239
Find the contiguous subarray within an array (containing at least one number) which has the largest sum.
分类：
其他好文 时间：
2014-06-27 11:43:25
阅读次数：
173
10. View the Exhibit and examine the structure of the PROMOTIONS table.Each promotion has a duration of at least seven days .Your manager has asked yo...
分类：
其他好文 时间：
2014-06-26 15:36:20
阅读次数：
240
Find the contiguous subarray within an array (containing at least one number) which has the largest sum.For example, given the array[?2,1,?3,4,?1,2,1,...
分类：
其他好文 时间：
2014-06-26 15:10:47
阅读次数：
168
