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TabControl key Points
A TabControl contains tab pages, which are represented by TabPage objects that you add through the TabPages property. The order of tab pages in this c...
分类:其他好文   时间:2014-08-02 15:19:03    阅读次数:201
DataSet key points
In a typical multiple-tier implementation, the steps for creating and refreshing a DataSet, and in turn, updating the original data are to:Build and f...
分类:其他好文   时间:2014-08-02 15:17:43    阅读次数:225
DataGridView key Points
http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview(v=vs.110).aspxThe DataGridView control provides a customizable table for dis...
分类:Windows程序   时间:2014-08-02 15:14:13    阅读次数:311
DataTable Key Points
The DataTable is a central object in the ADO.NET library. Other objects that use the DataTable include the DataSet and the DataView.When accessing Dat...
分类:其他好文   时间:2014-08-02 15:14:03    阅读次数:254
两个对象值相同(x.equals(y)==true),但却可有不同的hash code,这句话对不对
equals方法对比的是元素的值,可以hashcode不同, 但是如果我们override了自己的equals方法同时也应该重载hashcode方法。假设有obj1和obj2相等, 这时候obj1作为key放入map后,用obj2作为key来获取obj1存入的对象...
分类:其他好文   时间:2014-08-02 10:09:23    阅读次数:170
Java epoll
the Gemfire consultant add one more parameter to JVM -Djava.nio.channels.spi.SelectorProvider=sun.nio.ch.EPollSelectorProvider to be honest, I had no idea what it was. so I googled it. the key thin...
分类:编程语言   时间:2014-08-02 01:57:13    阅读次数:235
[leetcode笔记] Remove Duplicates from Sorted List II
问题描述:Given a sorted linked list, delete all nodes that have duplicate numbers, leaving onlydistinctnumbers from the original list.For example,Given1->...
分类:其他好文   时间:2014-08-02 01:33:12    阅读次数:249
Redis数据存储解决方案
1、背景 1.1 Redis简介 官方网站:http://redis.io/,Redis是REmote DIctionary Server的缩写。 Redis是一个开源的使用ANSI C语言编写、支持网络、可基于内存亦可持久化的日志型、Key-Value数据库,并提供多种语言...
分类:其他好文   时间:2014-08-01 23:24:42    阅读次数:631
Subsets
Given a set of distinct integers, S, return all possible subsets. Note: Elements in a subset must be in non-descending order.The solution set must not contain duplicate subsets. For exa...
分类:其他好文   时间:2014-08-01 23:18:42    阅读次数:246
Union和Union All的差别
如果我们有一个表Student,包含下面字段与数据:drop table student;create table student(id int primary key,name nvarchar2(50) not null,score number not null);insert into st...
分类:其他好文   时间:2014-08-01 22:57:42    阅读次数:318
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