Xms Xmx PermSize MaxPermSize 区别Eclipse崩溃，错误提示：MyEclipse has detected that less than 5% of the 64MB of PermGen (Non-heap memory) space remains. It is s...
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其他好文 时间：
2014-07-18 14:14:51
阅读次数：
202
Description
You are not given n non-negative integers
X0, X1,..., Xn-1 less than
220, but they do exist, and their values never change.
I'll gradually provide you some facts about them, and as...
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其他好文 时间：
2014-07-18 13:35:47
阅读次数：
458
在之前的学习中，我们了解到的while循环形如：whileexpression；dostatement...done这种语法结构的循环只要expression符合条件将执行循环体中的statement，否则就会推出循环。接下来将介绍两种特殊while循环while循环特性语法一while:;do循环体done这种循环没有expression，也..
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系统相关 时间：
2014-07-18 13:18:05
阅读次数：
290
注意：第一步要先添加权限：<uses-permissionandroid:name="android.permission.READ_EXTERNAL_STORAGE"/><uses-permissionandroid:name="android.permission.WRITE_EXTERNAL_STORAGE"/>步骤：文件流1、写：a）创建文件输出流（PATH）b）将内容写入文件输出流(str...
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其他好文 时间：
2014-07-18 13:14:00
阅读次数：
228
until循环语法格式：untilCONDITION
do
statement
done
说明:
until进入循环的条件是：condition不成立时，就执行循环。
until进入循环的条件正好和while相反，while进入循环的条件是：condition成立时，就进入循环。示例1：while循环[root@Server3Learn]#catwhile.sh
#!/bin/b..
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其他好文 时间：
2014-07-18 13:12:34
阅读次数：
196
Faced with the upcoming exam, Some useful methods referred to file operation drew tremenous attention. Now I make a summary to reading file.
import java.io.BufferedReader;
import java.io.BufferedWri...
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其他好文 时间：
2014-07-18 12:26:25
阅读次数：
274
Description
The game “The Pilots Brothers: following the stripy elephant” has a quest where a player needs to open a refrigerator.
There are 16 handles on the refrigerator door. Every handle can b...
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其他好文 时间：
2014-07-18 12:21:12
阅读次数：
253
Panagola, The Lord of city F likes to parade very much. He always inspects his city in his car and enjoys the welcome of his citizens. City F has a re...
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其他好文 时间：
2014-07-18 12:09:26
阅读次数：
304
1.hi/hello!/ Hullo!/How Do you do?(你好)2.(Good)morning/afternoon/evening！(早/下午/晚上(好))3.how are you?/how are you going?/how are you all keeping?(你好吗/最近过...
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其他好文 时间：
2014-07-18 11:36:34
阅读次数：
205
Description
Some of you may have played a game called 'Blocks'. There are n blocks in a row, each box has a color. Here is an example: Gold, Silver, Silver, Silver, Silver, Bronze, Bronze, Bronze, Go...
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其他好文 时间：
2014-07-18 11:23:05
阅读次数：
280
