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Proper usage of Java -D command-line parameters
... At least from bash it works with the quotes there (and also allows spaces this way), I use this all the day for ant-calls.
– Paŭlo Ebermann
Feb 18 '11 at 22:03
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How does IPython's magic %paste work?
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You actually can copy code to IPython directly: you may have to first disable auto-indentation by entering %autoindent.
– Eric O Lebigot
Jan 15 '13 at 3:51
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What is the most efficient way to store tags in a database?
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Actually I believe de-normalising the tags table might be a better way forward, depending on scale.
This way, the tags table simply has tagid, itemid, tagname.
You'll get duplicate tagnames, but it makes adding/removing/editing...
How to convert a ruby hash object to JSON?
... the possibility to extend existing classes with your own methods. That's called "class reopening" or monkey-patching (the meaning of the latter can vary, though).
So, take a look here:
car = {:make => "bmw", :year => "2003"}
# => {:make=>"bmw", :year=>"2003"}
car.to_json
# NoMethod...
How to change highlighted occurrences color in Eclipse's sidebar?
...Eclipse, placing the cursor on any type/variable/method/etc will highlight all occurrences in the text editor and place a faint bar in the right ruler to show you the location of other occurrences in the file.
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Android: Create spinner programmatically from array
I'm all new to Android and I'm trying to create a spinner programmatically and feeding it with data from an array, but Eclipse gives me a warning that I can't handle.
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Using numpad in Vi (Vim) via PuTTY
...inal app, try Preferences --> Profiles --> Advanced --> deselect "Allow VT100 application keypad mode"
– HaPsantran
Nov 12 '14 at 15:36
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内存调试技巧:C 语言最大难点揭秘 - C/C++ - 清泛网 - 专注C/C++及内核技术
...他许多通用语言(如 Java™、Ruby、Haskell、C#、Perl、Smalltalk 等),每种语言都有众多的爱好者和各自的优点。但是,从计算角度来看,每种编程语言优于 C 或 C++ 的主要优点都与便于内存管理密切相关。与内存相关的编程是如...
Why would one declare a Java interface method as abstract?
... an interface based on an existing class. The dialog box offered to create all the new methods of the new interface as "abstract" methods.
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ModelState.AddModelError - How can I add an error that isn't for a property?
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I eventually stumbled upon an example of the usage I was looking for - to assign an error to the Model in general, rather than one of it's properties, as usual you call:
ModelState.AddModelError(string key, string errorMessage);
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