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Why can I throw null in Java? [duplicate]
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why does it upcast it to a NullPointerException?
As per JLS 14.18:
A throw statement first evaluates the Expression. If the evaluation of the Expression completes abruptly for some reason, then the throw completes abruptly for that re...
Recommended way to get hostname in Java
Which of the following is the best and most portable way to get the hostname of the current computer in Java?
11 Answers
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Is there a Boolean data type in Microsoft SQL Server like there is in MySQL? [duplicate]
...valuates to (or converts to in some cases) a 1.
declare @i int = -42
print cast(@i as bit) --will print 1, because @i is not 0
Note that SQL Server uses three valued logic (true, false, and NULL), since NULL is a possible value of the bit data type. Here are the relevant truth tables -
More in...
What is the difference between the operating system and the kernel? [closed]
I do not understand the difference between operating system and kernel. Can someone please explain it?
3 Answers
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Converting SVG to PNG using C# [closed]
...recursive function to loop through the children of the SVGDocument, try to cast it to a SvgText if possible (add your own error checking) and set the font family and style.
foreach(var child in svgDocument.Children)
{
SetFont(child);
}
public void SetFont(SvgElement element...
How can I develop for iPhone using a Windows development machine?
... routes;
Install OSx86 (aka iATKOS / Kalyway) on a second partition/disk and dual boot.
Run Mac OS X Server under VMWare (Mac OS X 10.7 (Lion) onwards, read the update below).
Use Delphi XE4 and the macincloud service. This is a commercial toolset, but the component and lib support is growing.
T...
PHP case-insensitive in_array function
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@DarrenCook as far as i know a bool cast would also work (bool)preg_grep('/^'.preg_quote($needle).'$/',$a), as an empty array would cast to false
– arraintxo
Apr 9 '13 at 12:20
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Mac OS X 入门操作常见问题集锦（持续更新） - 更多技术 - 清泛网 - 专注C/...
Mac OS X 入门操作常见问题集锦（持续更新）如何截图：shift + command + 3 截整屏shift + command + 4 截窗口（默认png，并保存到桌面）shift + command + Ctrl + 4 如何截图：
shift + command + 3 截整屏
shift + command + 4 截窗口（默认png，并保存...
How to import a module given its name as string?
I'm writing a Python application that takes as a command as an argument, for example:
11 Answers
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Python: How to create a unique file name?
I have a python web form with two options - File upload and textarea . I need to take the values from each and pass them to another command-line program. I can easily pass the file name with file upload options, but I am not sure how to pass the value of the textarea.
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