先来看下“传统”的单例模式
package go.derek;
public class Singleton{
public static int times;
private Singleton(){
//构造器被调用的时候会打印出次数
System.out.println("单例构造器被调用"+(++times)+"两次");
}
private final sta...
分类:
数据库 时间:
2014-11-02 00:37:50
阅读次数:
167
问题描述:
Given an array of integers, every element appears three times except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it ...
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其他好文 时间:
2014-10-30 11:52:50
阅读次数:
256
Problem Discription: Suppose the array A has n items in which all of the numbers apear 3 times except one. Find the single number. int singleNumber2(....
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其他好文 时间:
2014-10-29 14:37:46
阅读次数:
170
some time,sometime,some times和 sometimes是常用的几个词,它们形似而含义不同。请记住下面口诀: 分开是“一段”, 相连为“某时”。 分开s是“倍、次”, 相连s是“有时”。读读下面四句话, 便会运用这四个词。例如:(1)I’ll stay here for so...
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其他好文 时间:
2014-10-29 12:47:46
阅读次数:
111
第一章 预备知识
[詹兴致矩阵论习题参考解答]习题1.1
1. 设 $a_1,\cdots,a_n$ 为正实数, 证明矩阵 $$\bex \sex{\frac{1}{a_i+a_j}}_{n\times n} \eex$$ 半正定.
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其他好文 时间:
2014-10-29 10:29:54
阅读次数:
110
1. 设 $a_1,\cdots,a_n$ 为正实数, 证明矩阵 $$\bex \sex{\frac{1}{a_i+a_j}}_{n\times n} \eex$$ 半正定.
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其他好文 时间:
2014-10-29 09:12:03
阅读次数:
150
Loops are an important labor-saving device commonly used in Programming Languages. When you need the same code repeated several times, typing it all o...
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其他好文 时间:
2014-10-28 15:23:56
阅读次数:
199
Color the ball
Time Limit : 9000/3000ms (Java/Other) Memory Limit : 32768/32768K (Java/Other)
Total Submission(s) : 8 Accepted Submission(s) : 2
Font: Times New Roman | Verdana | Georgia
...
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其他好文 时间:
2014-10-28 08:11:43
阅读次数:
149
字符串逆转void reverse(char* str,int beg,int end){ int times = (end- beg +1)/2; while(times > 0) { char tmp = str[end]; str[end--] =...
分类:
编程语言 时间:
2014-10-26 16:52:45
阅读次数:
114
Given a set of non-overlapping intervals, insert a new interval into the intervals (merge if necessary).
You may assume that the intervals were initially sorted according to their start times.
E...
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其他好文 时间:
2014-10-26 15:38:41
阅读次数:
196