<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[Tao's Tao]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/zhou545</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; zhou545]]></copyright><item><title><![CDATA[java encapsulation]]></title><link>https://blog.youkuaiyun.com/zhou545/article/details/50685196</link><guid>https://blog.youkuaiyun.com/zhou545/article/details/50685196</guid><author>zhou545</author><pubDate>Thu, 18 Feb 2016 12:14:18 +0800</pubDate><description><![CDATA[Encapsulation in Java is a mechanism of wrapping the data (variables) and code acting on the data (methods) together as as single unit. In encapsulation the variables of a class will be hidden from ot]]></description><category></category></item><item><title><![CDATA[OSI 7 layers model]]></title><link>https://blog.youkuaiyun.com/zhou545/article/details/50654289</link><guid>https://blog.youkuaiyun.com/zhou545/article/details/50654289</guid><author>zhou545</author><pubDate>Fri, 12 Feb 2016 10:07:57 +0800</pubDate><description><![CDATA[The Open Systems Interconnection model (OSI
 model) is a conceptual
 model that characterizes and standardizes the communication
 functions of a telecommunication or computing system without regard]]></description><category></category></item><item><title><![CDATA[http VS https]]></title><link>https://blog.youkuaiyun.com/zhou545/article/details/50654282</link><guid>https://blog.youkuaiyun.com/zhou545/article/details/50654282</guid><author>zhou545</author><pubDate>Fri, 12 Feb 2016 09:58:27 +0800</pubDate><description><![CDATA[What are they:

HTTP, or hypertext transfer protocol, is the way a Web server communicates with browsers like Internet Explorer® and Mozilla Firefox®. HTTP lets visitors view a site and send informa]]></description><category></category></item><item><title><![CDATA[SQL primary key, foreign key]]></title><link>https://blog.youkuaiyun.com/zhou545/article/details/50654271</link><guid>https://blog.youkuaiyun.com/zhou545/article/details/50654271</guid><author>zhou545</author><pubDate>Fri, 12 Feb 2016 09:45:53 +0800</pubDate><description><![CDATA[PRIMARY KEY 是为了保证数据的完整性
FOREIGN KEY 是为了保证数据引用的完整性


The PRIMARY KEY constraint uniquely identifies each record in a database table.

CREATE TABLE Persons
(
Id_P int NOT NULL,
LastName varchar(25]]></description><category></category></item><item><title><![CDATA[polymorphism]]></title><link>https://blog.youkuaiyun.com/zhou545/article/details/50654255</link><guid>https://blog.youkuaiyun.com/zhou545/article/details/50654255</guid><author>zhou545</author><pubDate>Fri, 12 Feb 2016 09:23:20 +0800</pubDate><description><![CDATA[Polymorphism is the ability of an object to take
 on many forms. 
多态是同一个行为具有多个不同表现形式或形态的能力.

Any Java object
 that can pass more than one IS-A test is considered to bepolymorphic.


There are ]]></description><category></category></item><item><title><![CDATA[difference between abstract class and interface]]></title><link>https://blog.youkuaiyun.com/zhou545/article/details/50654254</link><guid>https://blog.youkuaiyun.com/zhou545/article/details/50654254</guid><author>zhou545</author><pubDate>Fri, 12 Feb 2016 09:14:35 +0800</pubDate><description><![CDATA[interface Door{
void open();
void close();
}





similarity:
       1, 都是表示抽象的概念,不能直接定义一个object]]></description><category></category></item><item><title><![CDATA[join operations in SQL]]></title><link>https://blog.youkuaiyun.com/zhou545/article/details/50654210</link><guid>https://blog.youkuaiyun.com/zhou545/article/details/50654210</guid><author>zhou545</author><pubDate>Fri, 12 Feb 2016 05:21:58 +0800</pubDate><description><![CDATA[Suppose there are two tables A and B. And there are:

Aid Aname       Bid  Bname
-- ----                --  ----
1  Pirate            1   Rutabaga
2  Monkey         2   Pirate
3  Ninja]]></description><category></category></item><item><title><![CDATA[BloomFilter——大规模数据处理利器]]></title><link>https://blog.youkuaiyun.com/zhou545/article/details/50646548</link><guid>https://blog.youkuaiyun.com/zhou545/article/details/50646548</guid><author>zhou545</author><pubDate>Tue, 09 Feb 2016 11:30:58 +0800</pubDate><description><![CDATA[Bloom Filter是由Bloom在1970年提出的一种多哈希函数映射的快速查找算法。通常应用在一些需要快速判断某个元素是否属于集合，但是并不严格要求100%正确的场合。

 

一. 实例 

　　为了说明Bloom Filter存在的重要意义，举一个实例：

　　假设要你写一个网络蜘蛛（web crawler）。由于网络间的链接错综复杂，蜘蛛在网络间爬行很可能会形成“环”。]]></description><category></category></item><item><title><![CDATA[C++ 输入输出]]></title><link>https://blog.youkuaiyun.com/zhou545/article/details/16977205</link><guid>https://blog.youkuaiyun.com/zhou545/article/details/16977205</guid><author>zhou545</author><pubDate>Wed, 27 Nov 2013 04:09:52 +0800</pubDate><description><![CDATA[1 如何判断按回车键后即输入结束？
      使用 while(cin >> a)， 例如：int number;
while(cin >> number){
    ...
}]]></description><category></category></item><item><title><![CDATA[C语言：存取结构体成员的点运算符(.)和箭头运算符(->)的区别（转）]]></title><link>https://blog.youkuaiyun.com/zhou545/article/details/16955011</link><guid>https://blog.youkuaiyun.com/zhou545/article/details/16955011</guid><author>zhou545</author><pubDate>Tue, 26 Nov 2013 00:14:50 +0800</pubDate><description><![CDATA[相同点：两个都是二元操作符，其右操作符是成员的名称。




不同点：点操作符左边的操作数是一个“结果为结构”的表达式；

               箭头操作符左边的操作数是一个指向结构的指针。





例如：
struct AAA {
    int a;
    char b;
};

struct AAA q; 访问成员就用：q.a;
struct AAA *]]></description><category></category></item></channel></rss>