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Java ConcurrentHashMap学习 —— HashMap Vs. ConcurrentHashMap Vs. SynchronizedMap – How a HashMap can be Synchronized in Java
HashMapis a very powerfuldata structure inJava. We use it everyday and almost in all applications. There are quite a few examples which I have written...
分类:编程语言   时间:2016-01-07 10:21:08    阅读次数:319
LightOJ1010---Knights in Chessboard (规律题)
Given an m x n chessboard where you want to place chess knights. You have to find the number of maximum knights that can be placed in the ches...
分类:其他好文   时间:2016-01-07 10:10:52    阅读次数:218
PHP 笔记一(systax/variables/echo/print/Data Type)
PHP stands for "Hypertext Preprocessor" ,it is a server scripting language.What Can PHP Do?PHP can generate dynamic page contentPHP can create, open, ...
分类:Web程序   时间:2016-01-07 00:58:59    阅读次数:305
JavaScript中的事件冒泡定义及取消
事件冒泡:如果元素A嵌套在元素B中,那么A被点击不仅A的onclick事件会被触发,B的onclick也会被触发。触发的顺序是“由内而外” 。 验证:在页面上添加一个div、p、strong,在div、p、strong中添加onclick事件响应取消事件冒泡: window.event.can...
分类:编程语言   时间:2016-01-07 00:58:41    阅读次数:210
MySQL Proxy
What is MySQL Proxy? MySQL Proxy is a simple program that sits between your client and MySQL server(s) that can monitor, analyze or transform their co...
分类:数据库   时间:2016-01-06 23:36:57    阅读次数:191
Quartz Scheduler(2.2.1) - Usage of Calendars
Quartz Calendar objects (notjava.util.Calendar objects) can be associated with triggers at the time the trigger is defined and stored in the scheduler...
分类:其他好文   时间:2016-01-06 21:34:19    阅读次数:123
json.dumps错误:'utf8' codec can't decode byte解决方案
一次在使用json.dumps()过程中,出现错误提示:ERROR:"UnicodeDecodeError: 'utf8' codec can't decode byte 0xe1 in position 5: unexpected end of data"通过错误提示我们知道,肯定是编码问题,找到...
分类:Web程序   时间:2016-01-06 15:51:24    阅读次数:147
mac上mysql无法启动
连接mysql出现如下错误:ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)还以为安错地方了呢,缓存文件存在了tmp下网上查了错误原因,以为要改文件权限后来发现是因...
分类:数据库   时间:2016-01-06 13:47:32    阅读次数:157
Binary Tree Right Side View
Given a binary tree, imagine yourself standing on therightside of it, return the values of the nodes you can see ordered from top to bottom.For exampl...
分类:其他好文   时间:2016-01-06 08:03:53    阅读次数:162
lesson1:Python 判断表达式应用
1/5/2016 判断表达式应用Sample1:salary=raw_input("please input your salary: ")if salary>=10000:print "you can eat twice!^_^"elif 5000<= salary <10000:print "y...
分类:编程语言   时间:2016-01-06 00:05:07    阅读次数:188
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