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Differences in auto-unboxing between Java 6 vs Java 7
...noted a difference in auto unboxing behavior between Java SE 6 and Java SE 7. I'm wondering why that is, because I can't find any documentation of changes in this behavior between these two versions.
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What is the difference between square brackets and parentheses in a regex?
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127
These regexes are equivalent (for matching purposes):
/^(7|8|9)\d{9}$/
/^[789]\d{9}$/
/^[7-9]\...
Crontab Day of the Week syntax
In crontab does the Day of the Week field run from 0 - 6 or 1 -7 ?
3 Answers
3
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Can Java 8 code be compiled to run on Java 7 JVM?
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147
No, using 1.8 features in your source code requires you to target a 1.8 VM. I just tried the new...
What are the mathematical/computational principles behind this game?
...n:
Can we have a geometry with just 2 points? With 3 points? With 4? With 7?
There are still open questions regarding this problem but we do know this:
If there are geometries with Q points, then Q = n^2 + n + 1 and n is called the order of the geometry.
There are n+1 points in every line.
From ...
C++并发编程（中文版） - 文档下载 - 清泛网 - 专注C/C++及内核技术
...什么时候不使用并发… 6
1.3 在C++中使用并发和多线程… 7
1.3.1 多线程在C++中的发展历程… 7
1.3.2 新标准对于并发的支持… 8
1.3.3 C++线程库的效率… 8
1.3.4 平台相关的工具… 9
1.4 开始入门… 9
1.4.1 你好，并发世界… 9
1.5 小...
Multiple linear regression in Python
...weighted multivariate regression as well?
– user961627
May 1 '14 at 15:43
1
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Which one will execute faster, if (flag==0) or if (0==flag)?
...s designed for.
EDIT: Sprang up again, so let's add some assembly (LLVM 2.7 IR)
int regular(int c) {
if (c == 0) { return 0; }
return 1;
}
int yoda(int c) {
if (0 == c) { return 0; }
return 1;
}
define i32 @regular(i32 %c) nounwind readnone {
entry:
%not. = icmp ne i32 %c, 0 ...
Subtract 7 days from current date
It seems that I can't subtract 7 days from the current date. This is how i am doing it:
11 Answers
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How to find a min/max with Ruby
I want to use min(5,10) , or Math.max(4,7) . Are there functions to this effect in Ruby?
6 Answers
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