单例模式的两种实现方式: 单例模式:为了使一个类只能实例化一个对象,无论进行多少次实例化,其引用都指向一个对象。 第一种方式: class Single { private Single(){} private static Single s = new Single(); public stati ...
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其他好文 时间:
2016-04-16 23:08:25
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180
【POJ 3071】 Football(DP)
Time Limit: 1000MS
Memory Limit: 65536K
Total Submissions: 4350
Accepted: 2222
Description
Consider a single-elimination football tourname...
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其他好文 时间:
2016-04-16 19:26:10
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145
function
predicates(断言)
all语法
ALL(identifier in collection WHERE predicate)
any(至少一个),none,single(恰好一个)
exist语法
EXISTS( pattern-or-property )
scalar(标量)
coalesce(,,,)(合并)
返回第一个非空值,都为...
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其他好文 时间:
2016-04-16 19:20:29
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138
java之Symmetric encryption techniques
Symmetric encryption uses
a single key to encrypt and decrypt a message. This type of encryption is classified as either stream ciphers or block ciphers. Mor...
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编程语言 时间:
2016-04-16 19:04:05
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187
Implement regular expression matching with support for '.' and '*'. '.' Matches any single character. '*' Matches zero or more of the preceding elemen ...
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其他好文 时间:
2016-04-15 19:47:14
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129
Ducks have started mysteriously appearing in your room. All ducks make the same sound: "quack". Each duck makes the sound one or more times, one after another. For example, valid sounds for a single duck are "quack", "quackquackquackquack", "quackquack", e...
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其他好文 时间:
2016-04-15 02:17:44
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273
Given an array of numbers nums, in which exactly two elements appear only once and all the other elements appear exactly twice. Find the two elements ...
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其他好文 时间:
2016-04-14 20:51:39
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143
单页Web应用(single page web application,SPA),就是只有一张Web页面的应用,是加载单个HTML 页面并在用户与应用程序交互时动态更新该页面的Web应用程序。 单页Web应用 单页Web应用(single page web application,SPA),就是只有... ...
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其他好文 时间:
2016-04-14 18:02:05
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160
Given an array of integers, every element appears twice except for one. Find that single one. Note:Your algorithm should have a linear runtime complex ...
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其他好文 时间:
2016-04-14 14:13:02
阅读次数:
104
Does the model binder not suport arrays of JSON objects? The code below works when sending a single JSON domain object as part of the ajax post. Howev ...
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Web程序 时间:
2016-04-13 14:35:16
阅读次数:
185