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scala vs java, performance and memory? [closed]
...come from strings of length greater than two. In Java, you might
int n = 0;
for (String s: array) {
if (s.length > 2 && mapping.containsKey(s)) n++;
}
String[] bigEnough = new String[n];
n = 0;
for (String s: array) {
if (s.length <= 2) continue;
bigEnough[n++] = map.get(s);
}
...
Is AsyncTask really conceptually flawed or am I just missing something?
... urls) {
int count = urls.length;
long totalSize = 0;
for (int i = 0; i < count; i++) {
totalSize += Downloader.downloadFile(urls[i]);
publishProgress((int) ((i / (float) count) * 100));
}
return totalSize...
How do you check that a number is NaN in JavaScript?
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30 Answers
30
Active
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Apache .htaccess 禁止访问某目录方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...1、错误文档的定位
常见的客户端请求错误返回代码：
401 Authorization Required
403 Forbidden
404 Not Found
405 Method Not Allowed
408 Request Timed Out
411 Content Length Required
412 Precondition Failed
413 Request Entity Too Long
414 Request URI Too Long
415 Unsuppor...
Evaluate expression given as a string
...o change the string into an expression:
> eval(parse(text="5+5"))
[1] 10
> class("5+5")
[1] "character"
> class(parse(text="5+5"))
[1] "expression"
Calling eval() invokes many behaviours, some are not immediately obvious:
> class(eval(parse(text="5+5")))
[1] "numeric"
> class(eval...
How do I move a file with Ruby?
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edited May 25 '10 at 7:33
answered Dec 31 '08 at 15:46
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Maximum value for long integer
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edited Jul 20 '15 at 23:50
answered Mar 25 '12 at 13:45
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Regex (grep) for multi-line search needed [duplicate]
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507
Without the need to install the grep variant pcregrep, you can do multiline search with grep.
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How should a model be structured in MVC? [closed]
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910
+1700
Disc...
how to get an uri of an image resource in android
...in the receipients pc.
– ruben
May 30 '13 at 5:56
@hemanthkumar See this answer as a reference : stackoverflow.com/a/8...