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When should we use intern method of String on String literals
...d to be interned. Apart from the leaner syntax, this is also a performance enhancement. But as others have pointed out, doing this harbors a great risk of introducing programming errors, so this should be done only as a desparate measure of last resort.
The downside is that interning a String takes...
EC2 instance types's exact network performance?
...10%
*.8xlarge and marked specialty = 10 Gbit, expect ~8.5 GBit/s, requires enhanced networking & VPC for full throughput
m1 small, medium, and large instances tend to perform higher than expected. c1.medium is another freak, at 800 MBit/s.
I gathered this by combing dozens of sources doing b...
How do different retention policies affect my annotations?
...cle in this series, I'll show how Java's reflection capabilities have been enhanced to help you discover annotations at runtime and how the Annotation Processing Tool "apt" lets you use annotations at build-time., where is this article?
– Sushant
Jan 14 '16 at ...
Java ArrayList - how can I tell if two lists are equal, order not mattering?
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enhancing based on comments - System.out.println(((l1.size() == l2.size())&&l2.containsAll(l1)&&l1.containsAll(l2)));
– Nrj
Apr 7 '15 at 9:19
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Why should I not wrap every block in “try”-“catch”?
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#2, where it isn't a code-smell but makes sense, can be enhanced by keeping the old exception as a nested one.
– Deduplicator
Nov 13 '15 at 16:08
1
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What unique features does Firebug have that are not built-in to Firefox?
...ux, and Android. The browser has gained multi-processor support (finally), enhanced protection against harmful downloads, and media improvements on Android. Support for old OS X versions and Android Gingerbread has been dropped.
In Firefox 48, Mozilla is slowly enabling multi-process support, s...
How can I use optional parameters in a T-SQL stored procedure?
... no impact by the unsupplied criteria. Also, indexes and other performance enhancements can be targeted at specific bespoke queries rather than trying to satisfy all possible situations.
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imp...
快速开发CSS的利器LESS 系列教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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打开：https://github.com/danro/LESS-sublime 将less文件的压缩包下载下来。将文件解压之后，放置于sublime的data中的packages文件夹中。
html文件能够解析less文件的设置
从http://lesscss.org下载less.js，并将less.js文件引入html页面中。
注意：
...
“implements Runnable” vs “extends Thread” in Java
...ses should not be subclassed unless the programmer intends on modifying or enhancing the fundamental behavior of the class.
When there is a need to extend a superclass, implementing the Runnable interface is more appropriate than using the Thread class. Because we can extend another class while impl...
Interface vs Base class
...nto a
rigid hierarchy.
Interfaces enable safe, powerful functionality enhancements via the
wrap- per class idiom. If you use
abstract classes to define types, you
leave the programmer who wants to add
functionality with no alternative but
to use inheritance.
Moreover, you can...