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Make Iframe to fit 100% of container's remaining height
...D/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<style>
*{margin:0;padding:0}
html, body {height:100%;width:100%;overflow:hidden}
table {height:100%;width:100%;table-layout:static;border-collapse:collapse}
iframe {height:100%;widt...
How does the Java 'for each' loop work?
...an int index counter and checks against array.length instead. See the Java Language Specification.
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Simple explanation of clojure protocols
...d. We want them to be type-safe. [Note: not all of these make sense in all languages. But, for example, the goal to have them type-safe makes sense even in a language like Clojure. Just because we can't statically check type-safety doesn't mean that we want our code to randomly break, right?]
The E...
Is Ruby pass by reference or by value?
@user object adds errors to the lang_errors variable in the update_lanugages method.
when I perform a save on the @user object I lose the errors that were initially stored in the lang_errors variable.
...
REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...Y_PATH=$ORACLE_HOME/lib
PATH=$PATH:$ORACLE_HOME/bin:$HOME/bin
export NLS_LANG=American_American.ZHS16GBK
export ORACLE_BASE ORACLE_HOME ORACLE_SID LD_LIBRARY_PATH PATH
保存退出后执行如下命令使以上设置在当前窗口如果有配置有问题也可以提示。立即生效：
source...
AI助手重构版问题记录 - AI 助手 - 清泛IT社区，为创新赋能！
...nbsp; "&lang=zh"
}
}
}
},
&nbs...
How much faster is C++ than C#?
...
There is no strict reason why a bytecode based language like C# or Java that has a JIT cannot be as fast as C++ code. However C++ code used to be significantly faster for a long time, and also today still is in many cases. This is mainly due to the more advanced JIT optim...
Regular expression for floating point numbers
...[.] instead of \. and [0-9] instead of \d to avoid escaping issues in some languages (like Java).
Thanks to the nameless one for originally recognizing this.
One relatively simple pattern for matching a floating point number is
[+-]?([0-9]*[.])?[0-9]+
This will match:
123
123.456
.456
See ...
Do fragments really need an empty constructor?
... + " empty constructor that is public", e);
} catch (java.lang.InstantiationException e) {
throw new InstantiationException("Unable to instantiate fragment " + fname
+ ": make sure class name exists, is public, and has an"
+ " empty constructo...
Does Java casting introduce overhead? Why?
...
Upcast operations (also called
widening conversions in the Java
Language Specification) convert a
subclass reference to an ancestor
class reference. This casting
operation is normally automatic, since
it's always safe and can be
implemented directly by the compiler.
Downcas...