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   
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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 ...
                            
                            
                                分类:
Web程序   时间:
2016-04-13 14:35:16   
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185